Mixed Quantum-Classical Dynamics for Near Term Quantum Computers

• URL: http://arxiv.org/abs/2303.11375v2
• Date: Mon, 21 Aug 2023 09:36:06 GMT
• Title: Mixed Quantum-Classical Dynamics for Near Term Quantum Computers
• Authors: Daniel Bultrini, Oriol Vendrell
• Abstract summary: Mixed quantum-classical dynamics is often used to understand systems too complex to treat fully quantum mechanically. We present a modular algorithm for general mixed quantum-classical dynamics where the quantum subsystem is coupled with the classical subsystem.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Mixed quantum-classical dynamics is a set of methods often used to understand systems too complex to treat fully quantum mechanically. Many techniques exist for full quantum mechanical evolution on quantum computers, but mixed quantum-classical dynamics are less explored. We present a modular algorithm for general mixed quantum-classical dynamics where the quantum subsystem is coupled with the classical subsystem. We test it on a modified Shin-Metiu model in the first quantization through Ehrenfest propagation. We find that the Time-Dependent Variational Time Propagation algorithm performs well for short-time evolutions and retains qualitative results for longer-time evolutions.

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