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Robust Variational Ground-State Solvers via Dissipative Quantum Feedback Models

Robust Variational Ground-State Solvers via Dissipative Quantum Feedback Models

来源:Arxiv_logoArxiv
英文摘要

We propose a variational framework for solving ground-state problems of open quantum systems governed by quantum stochastic differential equations (QSDEs). This formulation naturally accommodates bosonic operators, as commonly encountered in quantum chemistry and quantum optics. By parameterizing a dissipative quantum optical system, we minimize its steady-state energy to approximate the ground state of a target Hamiltonian. The system converges to a unique steady state regardless of its initial condition, and the design inherently guarantees physical realizability. To enhance robustness against persistent disturbances, we incorporate H-infinity control into the system architecture. Numerical comparisons with the quantum approximate optimization algorithm (QAOA) highlight the method's structural advantages, stability, and physical implementability. This framework is compatible with experimental platforms such as cavity quantum electrodynamics (QED) and photonic crystal circuits.

Yunyan Lee、Ian R. Petersen、Daoyi Dong

物理学光电子技术

Yunyan Lee,Ian R. Petersen,Daoyi Dong.Robust Variational Ground-State Solvers via Dissipative Quantum Feedback Models[EB/OL].(2025-07-26)[2025-08-18].https://arxiv.org/abs/2507.19977.点此复制

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