Stochastic simulation of dissipative quantum oscillators

• URL: http://arxiv.org/abs/2406.05030v1
• Date: Fri, 7 Jun 2024 15:49:50 GMT
• Title: Stochastic simulation of dissipative quantum oscillators
• Authors: Charlie R. Hogg, Jonas Glatthard, Federico Cerisola, Janet Anders,
• Abstract summary: We use the paradigmatic case of a dissipative oscillator to give a pedagogic introduction into the modelling of open quantum systems. We use quasiclassical methods that use a 'quantum' noise spectrum to capture the influence of the environment on the system. Such methods have the potential to offer insights into the impact of the quantum nature of the environment on the dynamics of the system of interest whilst still being computationally tractable.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Generic open quantum systems are notoriously difficult to simulate unless one looks at specific regimes. In contrast, classical dissipative systems can often be effectively described by stochastic processes, which are generally less computationally expensive. Here, we use the paradigmatic case of a dissipative quantum oscillator to give a pedagogic introduction into the modelling of open quantum systems using quasiclassical methods, i.e. classical stochastic methods that use a 'quantum' noise spectrum to capture the influence of the environment on the system. Such quasiclassical methods have the potential to offer insights into the impact of the quantum nature of the environment on the dynamics of the system of interest whilst still being computationally tractable.

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