Radiative Process of Tripartite Entangled Probes Reveals Configuration-dependent Effects in Inertial Motion
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The behaviour of entangled particles represents a cornerstone of quantum mechanics, yet understanding how these delicate states interact with their surroundings remains a significant challenge. Subhajit Barman from the Indian Institute of Technology Madras and K. Hari from the Indian Institute of Technology Bombay investigate the radiative process affecting three entangled probes, specifically those prepared in a tripartite W state. Their work demonstrates that the way these entangled particles emit radiation depends critically on their initial arrangement and any motion they possess, revealing a sensitivity to configuration and velocity. By extending their analysis to include the more realistic scenario of a thermal environment, the researchers illuminate factors influencing decoherence, potentially guiding the development of experimental setups that better preserve quantum entanglement.
The team investigates how the emitted radiation changes depending on the arrangement of the probes and their velocities, considering both static and moving scenarios. The analysis reveals that the radiative process is distinctly affected by the initial configuration of the probes and the direction of their motion, even when a thermal environment is present. This work builds upon previous studies of paired entangled probes, extending the understanding to more complex, multipartite systems. Multipartite Entanglement and Nonlocal Realism Foundations This extensive compilation of research papers and topics provides a comprehensive overview of quantum entanglement, curved spacetime, and quantum field theory. The collection establishes the foundations of entanglement and its violation of local realism, referencing key work on Bell’s Theorem and multipartite states like the Greenberger-Horne-Zeilinger (GHZ) state and W states. A central theme is the impact of curved spacetime on entanglement, exploring concepts like the Unruh effect and Hawking radiation. The research demonstrates how acceleration affects entanglement, with numerous studies investigating accelerated and rotating detectors. A significant focus lies on entanglement harvesting, where entanglement is extracted from the vacuum using accelerated detectors, and the behaviour of entanglement in de Sitter and Anti-de Sitter spacetimes. The collection also highlights the importance of genuine multipartite entanglement, crucial for advanced quantum information processing. Furthermore, the research addresses the effects of radiative processes and environmental decoherence on entanglement, and explores the potential for gravitational waves to influence vacuum entanglement. The compilation suggests several promising research directions, including utilising entanglement for quantum communication and sensing, probing spacetime at small scales, and understanding the role of entanglement in cosmology and black hole physics. Developing quantum error correction codes robust to curved spacetime and designing quantum technologies for non-inertial environments are also identified as key challenges. The collection’s strengths lie in its comprehensiveness, currency, and interdisciplinary approach, bringing together concepts from quantum field theory, general relativity, and quantum information theory.
Entangled Probe Radiation Depends on Configuration and Motion This research investigates the radiation emitted by three entangled quantum probes initially prepared in a specific tripartite W state.
The team demonstrates that the radiative process is demonstrably dependent on the initial arrangement of the probes and the direction of their velocities, even when considering a thermal environment. This finding extends previous work on bipartite entanglement to the more complex realm of multipartite systems, which are increasingly relevant for advanced quantum technologies. The study meticulously examines the influence of different switching scenarios, background thermal effects, and probe motion on the radiative behaviour of these entangled probes. Importantly, the research identifies configurations that minimise decoherence, offering insights into maintaining entanglement in practical applications.
The team focused on W states, as these are not eigenstates of the probe Hamiltonian under consideration, allowing for a detailed analysis of their radiative characteristics. Future work could extend this investigation to other multipartite entangled states, such as GHZ states, and explore the impact of more complex environmental interactions, contributing to a deeper understanding of entanglement and its potential for robust quantum communication and computation. 👉 More information 🗞 Radiative process of tripartite entangled probes in inertial motion 🧠 ArXiv: https://arxiv.org/abs/2512.08578 Tags: Rohail T. As a quantum scientist exploring the frontiers of physics and technology. My work focuses on uncovering how quantum mechanics, computing, and emerging technologies are transforming our understanding of reality. I share research-driven insights that make complex ideas in quantum science clear, engaging, and relevant to the modern world. Latest Posts by Rohail T.: Difference-of-convex Optimization Speeds Goemans-Williamson for Quadratic Unconstrained Binary Optimization Problems December 11, 2025 Generalized Discrepancy of Random Points Improves Bounds for High-Dimensional Sampling with Optimal Densities December 11, 2025 Regularity for Degenerate Parabolic Equations with Strong Absorption and Λ₀(x,t)uμ Χ{u>0} in Qᴛ December 11, 2025