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quant-ph2025★ 3 cited
Path Integral Formalism for Quantum Open Systems
Ruofan Chen
This article provides a detailed derivation of the path integral formalism for both boson and fermion quantum open systems using coherent states. The formalism on the imaginary-tim…
quant-ph2023
Fidelity Out-of-Time-Order Correlator in the Spin-Boson Model
Ruofan Chen
In this article, using the numerically exact time-evolving matrix product operators method, we study the fidelity out-of-time-order correlator (FOTOC) in the unbiased spin-boson mo…