Quantum dynamics at finite temperature: Time-dependent quantum Monte Carlo study

• URL: http://arxiv.org/abs/2501.16782v1
• Date: Tue, 28 Jan 2025 08:06:19 GMT
• Title: Quantum dynamics at finite temperature: Time-dependent quantum Monte Carlo study
• Authors: Ivan P. Christov,
• Abstract summary: We investigate the dissipative quantum dynamics of interacting charged particles in an external potential at finite temperature. The recently devised time-dependent quantum Monte Carlo (TDQMC) method allows a self-consistent treatment of the system.
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• Abstract: In this work we investigate the ground state and the dissipative quantum dynamics of interacting charged particles in an external potential at finite temperature. The recently devised time-dependent quantum Monte Carlo (TDQMC) method allows a self-consistent treatment of the system of particles together with bath oscillators first for imaginary-time propagation of Schroedinger type of equations where both the system and the bath converge to their finite temperature ground state, and next for real time calculation where the dissipative dynamics is demonstrated. In that context the application of TDQMC appears as promising alternative to the path-integral related techniques where the real time propagation can be a challenge.

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