Neutral Atom Quantum Computing: Pasqal, QuEra & Atom Computing Updates
Neutral atom quantum computing news: Pasqal, QuEra, Atom Computing. Rydberg qubits, analog quantum simulation & scalability breakthroughs.
Neutral atom quantum computing has emerged as the fastest-scaling quantum technology, leveraging arrays of individual atoms trapped in optical tweezers and excited to Rydberg states for controllable interactions. Companies including Pasqal, QuEra Computing, Atom Computing, and ColdQuanta (Infleqtion) are commercializing systems with 100-1,000+ qubits.
The technology uses optical tweezers to trap neutral atoms in programmable arrangements. When excited to high-energy Rydberg states, atoms develop large electric dipole moments enabling strong, long-range interactions. This creates natural multi-qubit gates essential for efficient quantum simulation and optimization.
India's Neutral Atom Research
India's National Quantum Mission includes neutral atom research within its Quantum Computing Thematic Hub at IISc Bengaluru. Premier institutions involved in quantum processor research, including IIT Delhi, IIT Bombay, IISc Bengaluru, Raman Research Institute, and TIFR Mumbai, are exploring diverse approaches including superconducting qubits, semiconducting qubits, photonic processors, and neutral atom systems according to official government announcements. The Foundation for QC Innovation coordinates these multi-platform research efforts.
Dual Operating Modes
Dual operating modes include analog/digital mode for direct Hamiltonian simulation of quantum many-body physics, optimization, and machine learning; and gate-based mode for universal quantum computing with high-fidelity single-qubit and two-qubit gates.
Key Advantages
Key advantages include rapid scaling to hundreds of qubits, reconfigurable geometries supporting arbitrary connectivity, long coherence times (seconds), and compatibility with photonic interfaces for networking. Recent breakthroughs include Harvard/MIT/QuEra demonstrating 48 logical qubits using reconfigurable atom arrays for error correction, and Pasqal's analog quantum processors solving optimization problems with 1,000+ variables.
quantum-computingPasqal Achieves First Logical Qubit Solution For Real Problems
Pasqal has, for the first time, solved differential equations using quantum kernels at the logical qubit level, a crucial step beyond simply demonstrating the functionality of physical qubits. Utilizing two logical qubits on its neutral atom processor, the Pasqal team achieved a complete end-to-end application, marking the first time that hardware has demonstrated logical computations. The selection of differential equations was deliberate; these foundational calculations underpin numerous scientific and engineering disciplines, signaling a path toward practical quantum applications extending beyond typical early applications. “What surprised us during this project is that our logical qubits turned out to be naturally resistant to certain types of noise that typically make solving differential equations harder,” said Pascal Scholl, Adrien Signoles, and Lucia Garbini, associated with the work, demonstrating a versatility as the same Pasqal processor previously showcased analog computing capabilities. End-to-End Application of Logical Qubits on Neutral Atoms The Pasqal team has moved beyond theoretical exercises and solved a practical problem using logical qubits, a significant step toward fault-tolerant quantum computing. Researchers associated with Pasqal have successfully used two logical qubits on their neutral atom processor to fully solve differential equations, demonstrating a capability previously confined to experimentation with physical qubits. This validates a critical milestone: logical qubits can tackle real problems beyond theoretical building blocks. The team chose differential equations for two key reasons, due to their broad relevance across numerous scientific and engineering fields; these equations model phenomena ranging from aerospace simulations to pharmaceutical kinetics and financial risk assessment, representing computationally intensive tasks industries are actively seeking solutions for. The researchers explain that solving differential equa
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quantum-computingInfleqtion: Quantum Hype Meets Real Business
Yiannis Zourmpanos15.32K FollowersFollow5ShareSavePlay(10min)Comments(4)SummaryInfleqtion generated $32.5 million in revenue in FY2025, growing roughly 3x since 2023, driven primarily by sensing and timing products.Around two-thirds of revenue comes from sensing applications like atomic clocks and RF systems, with computing contributing the remaining portion.The company raised $516 million in 2026, significantly strengthening its balance sheet and reducing near-term dilution and survival risks.Infleqtion currently operates 1,600 physical qubits and 12 logical qubits, targeting 100+ logical qubits by the 2028 commercialization stage.Total addressable markets exceed $160 billion across computing and sensing, where even sub-0.1% penetration implies $100–150 million revenue potential. Just_Super/iStock via Getty Images Investment Thesis The market still treats Infleqtion, Inc. (INFQ) as a distant quantum computing bet. I think that misses the real opportunity. This is an already profitable company developing essential technology in an era where everythingThis article was written byYiannis Zourmpanos15.32K FollowersFollowHi, I'm Yiannis. Spotting winners before they break out is what I do best.Experience: Previously worked at Deloitte and KPMG in external/internal auditing and consulting. Education: Chartered Certified Accountant, Fellow Member of ACCA Global, with BSc and MSc degrees from U.K. business schools. Investment Style: Spotting high-potential winners before they break out, focusing on asymmetric opportunities (with at least upside potential of 3-5X outweighing the downside risk). By leveraging market inefficiencies and contrarian insights, we seek to maximize long-term compounding while protecting against capital impairment.Risk management is paramount—we seek a strong margin of safety to protect against capital impairment while maximizing long-term compounding. Our 2-3 year investment horizon allows us to ride out volatility, ensuring that patience, disciplin
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quantum-computingPasqal and True Nexus Partner to Optimize Alternative Protein Design via Quantum Computing
Pasqal and True Nexus Partner to Optimize Alternative Protein Design via Quantum Computing Pasqal and Saudi-based computational intelligence firm True Nexus (a branch of AI Bobby) have entered a strategic partnership to apply neutral-atom quantum computing to the study of protein functionality. The initiative focuses on addressing technical barriers in the alternative protein industry, specifically the difficulty of predicting how proteins behave—including gelation and texture—within complex food systems. This collaboration follows Pasqal’s announced intent to go public via a business combination with Bleichroeder Acquisition Corp. II (Nasdaq: BBCQ). The primary objective of the partnership is the development of a vectorized, dynamic 3D model of protein gelation. This model is designed to integrate variables such as molecular structure, extraction parameters, and environmental processing conditions. By utilizing neutral-atom quantum processors, the companies aim to simulate molecular interactions and variables with higher precision than is currently achievable through classical computational methods. The project seeks to transition alternative protein development from empirical trial-and-error toward a design-driven methodology. The long-term goal of the collaboration is to establish a reference model for protein functionality to assist ingredient companies in seed development, crop optimization, and precision fermentation. By improving the predictability of protein behavior, the companies aim to address the functionality gap between animal-based and alternative proteins. This model is intended to serve as a technical guide for the food industry to achieve consistent texture and performance in sustainable protein products. For the technical announcement regarding the partnership and protein modeling objectives, consult the Pasqal newsroom here. April 10, 2026 Mohamed Abdel-Kareem2026-04-10T06:15:37-07:00 Leave A Comment Cancel replyComment Type in the text displayed
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quantum-computingQ-CTRL Proposes Heterogeneous Architecture to Optimize Fault-Tolerant Resource Requirements
Q-CTRL Proposes Heterogeneous Architecture to Optimize Fault-Tolerant Resource Requirements Overview of Q-NEXUS: a heterogeneous architecture made of specialized functional modules connected through an interconnect bus Q-CTRL has introduced Q-NEXUS, a heterogeneous quantum computing architecture designed to address the physical resource bottlenecks currently limiting large-scale quantum computers. Rather than scaling a single monolithic array of qubits, the Q-NEXUS framework decomposes the system into specialized functional modules: Quantum Processing Units (QPUs) for logic, Quantum Memory (QM) for storage, and Quantum State Factories (QSF) for resource generation. This approach seeks to resolve the “tyranny of numbers”—the unsustainable growth of control wiring and cryogenic load—by centralizing high-speed operations while offloading storage to simplified, high-density tiers. A primary technical insight in the Q-CTRL paper is that qubits in algorithms like RSA-2048 factorization are inactive for approximately 96–97% of all logical clock cycles. In a monolithic design, these idle qubits sit in expensive, actively error-corrected hardware, where they continue to accumulate decoherence and consume system resources. Q-NEXUS addresses this by segregating storage into a hierarchical memory system. This includes Static Transversal Quantum Memory (STQM), which uses ultra-long-coherence substrates like rare-earth ions to store states without active error correction, and Random-Access Quantum Memory (RAQM), which utilizes slower but stable modalities like neutral atoms for long-term storage. The transition from monolithic to heterogeneous organization enables massive gains in computational reliability and efficiency. According to Q-CTRL’s detailed accounting, the Q-NEXUS architecture achieves up to a 551× reduction in algorithmic logical error for specific subroutines and a 138× reduction in physical qubit requirements for fault-tolerant benchmarks. For the factorization of
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A landmark first: Solving Differential Equations with Logical Neutral-Atom Qubits
Home – FTQC – A landmark first: Solving Differential Equations with Logical Neutral-Atom Qubits A landmark first: Solving Differential Equations with Logical Neutral-Atom Qubits FTQC Hardware +End-to-end application with logical qubits+From Building Blocks to Full Applications+Why This Application?+The Results: Logical Qubits Outperform Physical Ones+What’s Next+Stay Tuned Apr 10, 2026 +End-to-end application with logical qubits+From Building Blocks to Full Applications+Why This Application?+The Results: Logical Qubits Outperform Physical Ones+What’s Next+Stay Tuned Authors: Pascal Scholl, Adrien Signoles, Lucia Garbini End-to-end application with logical qubits For the first time, the Pasqal team solved differential equations using quantum kernels at the logical qubit level. In our latest work, we’ve implemented a complete end-to-end application using logical qubits moving beyond testing sub-routines to delivering an actual computational solution. This proof-of-concept used 2 logical qubits on Pasqal’s neutral atom quantum processor. Previously, this same processor demonstrated analog quantum computing capabilities, including applying machine learning to molecular toxicity prediction, and managing financial risk. Now, for the first time, that same hardware has demonstrated logical computations. validates a critical milestone: logical qubits can tackle real problems beyond theoretical building blocks. From Building Blocks to Full Applications Fault-tolerant quantum computing (FTQC) relies on logical qubits that protect against noise: even though errors occur on the underlying physical qubits, the computation remains error-tolerant, delivering correct results. If you’re new to FTQC, our post on understanding fault-tolerant quantum computing breaks down how this approach works and why it’s essential for delivering the full value of quantum computing Until now, FTQC research has focused mostly on sub-routines of c
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quantum-computingInfleqtion and NASA Deploy Upgraded Quantum Hardware to International Space Station
Infleqtion and NASA Deploy Upgraded Quantum Hardware to International Space Station Infleqtion (NYSE: INFQ), in collaboration with NASA’s Jet Propulsion Laboratory (JPL), has provided an upgraded physics package to the International Space Station (ISS) via the Northrop Grumman-24 (NG-24) cargo mission. This hardware update is designed for the Cold Atom Laboratory (CAL), the first continuously functioning quantum research facility in orbit. The new package aims to facilitate record-breaking atom populations and record ultracold temperatures in microgravity. These enhanced conditions allow for the creation and study of simultaneous dual-species quantum gases—specifically rubidium and potassium atoms—which is a primary scientific objective for advanced space-based research. The microgravity environment of the ISS provides a uniquely stable platform for quantum systems, allowing atoms to be cooled and observed for significantly longer durations than is possible under Earth’s gravitational influence. By advancing ultracold atom sensing in orbit, the mission seeks to improve the precision of technologies used for Earth monitoring, environmental sensing, and inertial navigation. These developments are intended to support critical infrastructure resilience and provide a deeper understanding of the fundamental forces governing particle interactions. The NG-24 mission serves as a validation point for the reliability of neutral-atom technology in real-world space operating conditions. Infleqtion has been a long-term provider of physics packages for the CAL program since 2018 and is also supporting NASA’s Quantum Gravity Gradiometer Pathfinder mission, which aims to deploy the world’s first quantum gravity sensor in orbit. As the ISS moves toward a transition into commercial low-Earth-orbit operations over the next decade, Infleqtion is positioning its neutral-atom solutions for broader applications across the aerospace and defense sectors. The company’s full-stack approach, wh
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quantum-computingQuantum Clocks Enable GPS-Free Navigation
Quantum company Infleqtion is set to launch more of its technology into space over the weekend as demand for ways to navigate without GPS grows. Matt Kinsella, CEO of Infleqtion, discusses the company’s quantum clocks and why they offer a superior option to quantum computers, for now. He joins Caroline Hyde and Ed Ludlow on “Bloomberg Tech.” (Source: Bloomberg)
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quantum-computingInfleqtion and NASA Deliver Next-Generation Quantum Capabilities to International Space Station
Insider Brief Infleqtion is providing upgraded quantum hardware to NASA’s Cold Atom Laboratory on the ISS via the NG-24 mission to enhance quantum sensing and ultracold atom experiments. The upgrade enables dual-species quantum gases, record ultracold temperatures, and extended in-orbit experiments under microgravity conditions. Infleqtion has a proven space-based quantum track record, supporting NASA since 2018 and contributing to quantum gravity sensing and commercial space initiatives. PRESS RELEASE — Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, is providing upgraded quantum hardware to the International Space Station (ISS) via NASA’s Northrop Grumman-24 (NG-24) cargo mission. The upgraded physics package for the Cold Atom Laboratory (CAL), developed in collaboration with NASA’s Jet Propulsion Laboratory (JPL), may enable record-breaking in-orbit atom populations, record ultracold temperatures, and facilitate creation and study of simultaneous dual-species quantum gases. These advances could unlock new experimental capabilities with the potential to improve navigation, strengthen Earth monitoring, and support critical infrastructure resilience. “Space gives us a uniquely stable environment to push quantum systems beyond what is possible on Earth,” said Dr. Dana Anderson, founder and Chief Science Officer at Infleqtion. “By advancing ultracold atom sensing in orbit, we are not only exploring fundamental physics, but also helping lay the groundwork for quantum technologies that can improve how we navigate, monitor our planet, and protect critical systems in the years ahead.” The microgravity environment allows quantum systems to operate under conditions that are difficult to replicate on Earth, allowing experiments to run longer with fewer external disturbances. These unique conditions allow scientists to run experiments that can improve the precision of sensing technologies used to bette
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quantum-computingQuEra Uses Neutral Atoms to Develop Quantum Computers - embedded.com
QuEra Uses Neutral Atoms to Develop Quantum Computers embedded.com
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quantum-computingMagnetic Signals from Single Cells Reveal 89 μT Detection Using Quantum Sensors
A new approach to single-cell analysis combines optical tweezers with quantum magnetometry. Jun Yin and colleagues at University of Science and Technology of China demonstrate a magnetic detection strategy utilising nitrogen-vacancy centres to both trap and measure individual cells within a microfluidic channel. The method circumvents limitations inherent in fluorescence detection, such as blinking and photobleaching, and successfully detected a magnetic signal from a single cell labelled with magnetic nanoparticles. This platform represents a key advancement towards high-precision, non-optical single-cell analysis and offers a promising avenue for investigating cellular activities in complex biological environments. Single-cell magnetic field detection via integrated optical tweezers and quantum magnetometry A magnetic signal of 89 μT was detected from a single cell, exceeding the 3.9 μT noise floor of unlabeled cells. This represents a key improvement in magnetic sensitivity previously unattainable with single-cell manipulation, offering a substantial leap forward in the field of biophysics. Traditional methods for analysing single cells often rely on optical techniques, but these are hampered by the inherent limitations of fluorescence, including signal degradation due to photobleaching, the irreversible destruction of fluorescent molecules, and autofluorescence, the emission of light from cellular components themselves which obscures the desired signal. These effects limit the duration and accuracy of observations, particularly in complex biological samples. The integration of optical tweezers with nitrogen-vacancy (NV) centre quantum magnetometry provides a novel solution by enabling spin-based magnetic sensing, effectively bypassing these optical constraints. The ability to detect such a small magnetic field, originating from a single cell, opens up possibilities for studying subtle changes in cellular behaviour and identifying rare cell populations with
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quantum-computingCloudflare Accelerates Post-Quantum Roadmap to 2029 Amid Major Algorithmic Breakthroughs
Cloudflare Accelerates Post-Quantum Roadmap to 2029 Amid Major Algorithmic Breakthroughs Cloudflare has officially updated its post-quantum (PQ) security roadmap, shifting its target for full system-wide resilience to 2029. This acceleration is driven by recent and unexpected advancements in quantum factoring efficiency, which suggest that the window for migrating global internet infrastructure is closing faster than previously modeled. While the company enabled post-quantum encryption for all websites and APIs in 2022 to mitigate “harvest now, decrypt later” (HNDL) risks, the new roadmap prioritizes the much more complex challenge of post-quantum authentication. The urgency stems from two independent breakthroughs announced in late March and early April 2026. First, Google’s Quantum AI team published a whitepaper demonstrating a 20-fold reduction in the resources required to break ECDSA-256, the elliptic curve cryptography securing Bitcoin, Ethereum, and much of the public web. According to a recent Quantum Computing Report (QCR) Qnalysis, this development represents a “decryption threshold” that necessitates an immediate re-evaluation of the quantum threat to global blockchain infrastructure and decentralized finance. Verified via a zero-knowledge proof, Google’s optimized algorithm suggests that fewer than 500,000 physical qubits could be sufficient to crack these keys—a sharp decline from the 10 million qubits estimated just a few years ago. Parallel research from the Caltech-linked startup Oratomic has further compressed this timeline by focusing on neutral atom architectures. Oratomic’s research indicates that breaking RSA-2048 and P-256 could require as few as 10,000 reconfigurable atomic qubits. This efficiency is gained through a massive reduction in error-correction overhead; while superconducting systems typically require 1,000 physical qubits for a single logical qubit, neutral atom machines—which allow for dynamic, “high-rate” connectivity—may require o
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quantum-computingA New Trick Brings Stability to Quantum Operations
Insider Brief PRESS RELEASE — Quantum bits, or qubits, which are required for building quantum computers, come in different kinds. In recent years, many research institutes and companies have focused on superconducting circuits and trapped ions. However, neutral atoms trapped with laser light also have a lot going for them: since they carry no electric […]
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quantum-computingInfleqtion Announces 2026 Revenue Guidance of $40 Million
Outlook reflects growing customer demand for quantum sensing and computing solutions LOUISVILLE, Colo.–April 8, 2026– Infleqtion (NYSE: INFQ) (the “Company”) a global leader in quantum computing and quantum sensing powered by neutral-atom technology, today announced 2026 revenue guidance of $40 million in conjunction with its previously announced business update call. The Company’s outlook reflects growing customer demand for quantum sensing and computing solutions. 2025 Financial Highlights For Full Year Ending December 31, 2025[1]: Revenue of $32.5 million. Loss from operations of $35.3 million. Non-GAAP operating loss of $28.1 million, which excludes stock-based compensation of $3.1 million and acquisition and integration costs of $4.1 million from GAAP operating loss. Select Business Highlights On April 1, 2026, Infleqtion announced the availability of its first quantum-enabled precision timing solution delivered with Safran Electronics & Defense. The solution builds on the December 2025 announcement of a strategic partnership and includes Infleqtion’s Tiqker optical atomic clock integrated and validated with Safran’s White Rabbit and SecureSync systems. The solution is available to customers across the defense, telecommunications, and critical infrastructure sectors. In March 2026, Infleqtion announced the delivery of the UK’s only operational 100-physical qubit quantum computing system at the National Quantum Computing Centre, meeting a major UK national quantum mission goal and advancing the country’s ability to develop and operate large-scale quantum systems. Following its earlier $6.2 million ARPA-E ENCODE award, Infleqtion won an additional ARPA-E award in March 2026, receiving $3.9 million through the QC3 program to advance chemistry and materials science applications. In February 2026, Infleqtion announced its role as a collaborator on NASA’s Quantum Gravity Gradiometer Pathfinder mission, securing more than $20 million in contracted funding to date.
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quantum-computingRobust against noise, geometric-phase swap gates bring stability to quantum operations
Researchers at ETH Zurich have realized particularly stable quantum logical operations with qubits made of neutral atoms. Since these operations, called quantum gates, are based on geometric phases, they are extremely robust against experimental noise and can be used in quantum computers in the future.
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quantum-computingMartina Matusko Joins planqc to Build Quantum Computer with Neutral Atoms
planqc has welcomed Martina Matusko as a Quantum Hardware Engineer to advance the development of its neutral-atom quantum computer. Matusko will be responsible for operating and further developing the quantum machine, focusing on trapping atoms to push the boundaries of quantum technology. A physicist from Croatia and Bosnia and Herzegovina, Matusko brings expertise gained through a PhD in quantum metrology and a background in both mathematics and physics to the Munich-based quantum computing company. She joined planqc after hearing founder Sebastian’s vision for building a quantum computer, a mission that perfectly aligned with her interests. “It is incredibly fulfilling to contribute to a technology that pushes the boundaries of what we think is possible,” says Matusko, who was motivated to pursue science by a desire to challenge limiting stereotypes surrounding women in STEM. Neutral Atom Qubit Development at planqc planqc is advancing neutral-atom quantum hardware while highlighting the importance of collaborative and inclusive environments. Martina Matusko, Quantum Hardware Engineer at planqc, explained that her role centers on the practical realization of this vision. “Together with my colleagues, I’m building a quantum computer based on neutral atoms. My main responsibility is operating and developing our quantum machine. I spend my days trapping atoms and pushing the experimental setup forward to advance our quantum technology.” This hands-on work is critical to overcoming the significant engineering challenges inherent in manipulating and controlling individual atoms. Martina also shares her vision for empowering the next generation in science and reflects on the joy of doing what you truly love. Currently, I’m one of two women in a fairly large Quantum Hardware team in Garching, but I honestly never notice it. I’m treated as a colleague, as an equal, and when you work in such an environment, you don’t think about gender statistics. This emphasis on inclusi
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quantum-computingQ-Factor: $24 Million Raised For Neutral Atom Quantum Computing Platform Targeting Million-Qubit Scale - Pulse 2.0
Q-Factor: $24 Million Raised For Neutral Atom Quantum Computing Platform Targeting Million-Qubit Scale Pulse 2.0
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quantum-computingPasqal Partners with True Nexus to Apply Quantum Computing to Next-Gen Food Protein Design - HPCwire
Pasqal Partners with True Nexus to Apply Quantum Computing to Next-Gen Food Protein Design HPCwire
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quantum-computingPasqal Partners with True Nexus to Apply Quantum Computing to Next-Generation Food Protein Design - Business Wire
Pasqal Partners with True Nexus to Apply Quantum Computing to Next-Generation Food Protein Design Business Wire
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quantum-computingInformation Propagation in Rydberg Arrays via Analog OTOC Calculations
--> Quantum Physics arXiv:2604.05038 (quant-ph) [Submitted on 6 Apr 2026] Title:Information Propagation in Rydberg Arrays via Analog OTOC Calculations Authors:Goksu Can Toga, Siva Darbha, Ermal Rrapaj, Pedro L. S. Lopes, Alexander F. Kemper View a PDF of the paper titled Information Propagation in Rydberg Arrays via Analog OTOC Calculations, by Goksu Can Toga and 3 other authors View PDF HTML (experimental) Abstract:Out-of-time-order correlators (OTOCs) are the main tool for probing quantum chaos and scrambling, and have become crucial probes in many areas of quantum computing. However, the measurement of OTOCs is difficult to implement on analog quantum computers due to the requirement of backward time evolution. In this paper, we develop and implement a randomized measurement protocol to compute OTOCs on Aquila by QuEra Computing. Unlike traditional methods that require backward time evolution, our approach utilizes a sequence of global randomized quenches that approximates the unitary 2-design properties necessary for extracting infinite-temperature OTOCs from statistical correlations. We demonstrate the protocol's success by explicitly observing the lightcone of information propagation in 1D Rydberg chains, and compare hardware results to both state-vector simulations and matrix product state (MPS) tensor network calculations. This work establishes the first demonstration of fully analog randomized OTOC measurements in neutral-atom simulators, providing a scalable pathway to probe quantum chaos in complex many-body systems. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.05038 [quant-ph] (or arXiv:2604.05038v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2604.05038 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Goksu Can Toga [view email] [v1] Mon, 6 Apr 2026 18:00:05 UTC (9,701 KB) Full-text links: Access Paper: View a PDF of the paper titled Information Propagati
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quantum-computingSquare-root Time Atom Reconfiguration Plan for Lattice-shaped Mobile Tweezers
--> Quantum Physics arXiv:2604.05317 (quant-ph) [Submitted on 7 Apr 2026] Title:Square-root Time Atom Reconfiguration Plan for Lattice-shaped Mobile Tweezers Authors:Koki Aoyama, Takafumi Tomita, Fumihiko Ino View a PDF of the paper titled Square-root Time Atom Reconfiguration Plan for Lattice-shaped Mobile Tweezers, by Koki Aoyama and 2 other authors View PDF HTML (experimental) Abstract:This paper proposes a scalable planning algorithm for creating defect-free atom arrays in neutral-atom systems. The algorithm generates a $\mathcal{O}(\sqrt N)$ time plan for $N$ atoms by parallelizing atom transport using a two-dimensional lattice pattern generated by acousto-optic deflectors. Our approach is based on a divide-and-conquer strategy that decomposes an arbitrary reconfiguration problem into at most three one-dimensional shuttling tasks, enabling each atom to be transported with a total transportation cost of $\mathcal{O}(\sqrt N)$. Using the Gale--Ryser theorem, the proposed algorithm provides a highly reliable solution for arbitrary target geometries. We further introduce a peephole optimization technique that improves reconfiguration efficiency for grid target geometries. Numerical simulations on a 632$\times$632 atom array demonstrate that the proposed algorithm achieves a grid configuration plan that reduces the total transportation cost to 1/7 of state-of-the-art algorithms, while resulting in 32%--35% more atom captures. We believe that our scalability improvement contributes to realizing large-scale quantum computers based on neutral atoms. Our experimental code is available from this https URL. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.05317 [quant-ph] (or arXiv:2604.05317v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2604.05317 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Koki Aoyama [view email] [v1] Tue, 7 Apr 2026 01:37:27 UTC (1,777 KB) Full-text l
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