Dynamic Stimulated Emission Enables Deterministic Photon Addition and Subtraction with 99% Fidelity
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Controlling the properties of light at the single-photon level represents a major challenge in quantum photonics, and researchers continually seek more efficient methods for manipulating light’s quantum state. Haoyuan Luo from The University of Sydney, Parth S. Shah, Frank Yang, and Mohammad Mirhosseini from the California Institute of Technology, along with Sahand Mahmoodian from The University of Sydney, now demonstrate a new technique called dynamic stimulated emission that allows for the deterministic addition or subtraction of single photons from a beam of light. This innovative approach overcomes limitations of existing methods by achieving high success rates and fidelity, enabling the creation of complex quantum states, including Schrödinger cat states, from simple inputs.
The team’s findings pave the way for building more efficient sources of non-Gaussian light, potentially transforming single-photon emitters into versatile sources of advanced quantum states without requiring complex inline squeezing techniques. Ideal Multi-Photon Subtraction Derivation Explained Scientists have developed a detailed mathematical framework for precisely subtracting photons from a quantum state, a crucial step in advanced quantum technologies. This work focuses on determining the optimal conditions for removing a specific number of photons, ensuring a highly efficient and controlled process. The research establishes a method for calculating the effective coupling strength that governs this subtraction, allowing for precise manipulation of quantum states. By carefully defining the mathematical parameters and applying a recursive solution, scientists can accurately predict and control the outcome of photon subtraction. This theoretical work provides a solid foundation for future experiments and technological developments in the field of quantum photonics.
Dynamic Emission Generates Non-Gaussian Light States Researchers have pioneered a new technique for generating complex states of light, known as non-Gaussian states, by harnessing dynamic stimulated emission from quantum emitters. This innovative approach overcomes limitations of traditional methods, offering a more versatile and efficient way to manipulate light’s quantum properties.
The team engineered a system where a quantum emitter interacts with light in a time-dependent manner, enabling the deterministic addition or subtraction of single photons. This precise control allows for the creation of complex quantum states, including Schrödinger cat states, from simple inputs. Experiments demonstrate the ability to generate Fock states with exceptionally high fidelity, exceeding 99. 6%, and to convert emitters into sources of single-photon-added Gaussian states. This breakthrough establishes a pathway for integrating quantum emitters into practical optical systems, extending beyond single photons and opening new possibilities for quantum communication, computation, and sensing.
Deterministic Photon Addition and Subtraction Demonstrated Scientists have achieved a significant breakthrough in quantum photonics by demonstrating deterministic single-photon addition and subtraction to multi-photon states.
This research showcases a novel method for precisely controlling the number of photons in a light beam, enabling the creation of complex quantum states with high fidelity. By carefully controlling the interaction between light and quantum emitters, the team achieved photon addition and subtraction with fidelities exceeding 99. 6%. This dynamic coupling allows for the deterministic transfer of photons between the emitter and the light field, resulting in well-defined quantum states.
The team successfully implemented cascaded photon addition and subtraction on squeezed vacuum states, generating high-fidelity Schrödinger cat states. Furthermore, they demonstrated the ability to transform single-photon sources into sources of photon-added Gaussian states, achieving high success probabilities and fidelities.
This research establishes a promising pathway for constructing efficient sources of non-Gaussian light, extending beyond single photons and opening new possibilities for quantum communication, computation, and sensing.
Deterministic Photon Addition and Subtraction Demonstrated Researchers have introduced a novel approach to manipulating light using dynamic stimulated emission, enabling the deterministic addition or subtraction of single photons from a light beam. This innovative technique allows for precise control over the quantum properties of light, achieving high-fidelity photon subtraction and addition for various light states.
The team successfully applied this technique to create complex quantum states, including Schrödinger cat states from squeezed vacuum input, and to generate photon-added Gaussian states. These states are particularly valuable as they address limitations of conventional Gaussian states, offering improved potential for preparing more exotic and useful quantum states for applications like quantum computation. 👉 More information 🗞 Dynamic stimulated emission for deterministic addition and subtraction of propagating photons 🧠 ArXiv: https://arxiv.org/abs/2512.09711 Tags: