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Open Quantum Systems Decoherence Quantum Thermodynamics

Speeding up Thermalisation via Open Quantum System Variational Optimisation

arXiv
Authors: Nishchay Suri, Felix C. Binder, Bhaskaran Muralidharan, Sai Vinjanampathy

Year

2017

Paper ID

24941

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

Optimizing open quantum system evolution is an important step on the way to achieving quantum computing and quantum thermodynamic tasks. In this article, we approach optimisation via variational principles and derive an open quantum system variational algorithm explicitly for Lindblad evolution in Liouville space. As an example of such control over open system evolution, we control the thermalisation of a qubit attached to a thermal Lindbladian bath with a damping rate γ. Since thermalisation is an asymptotic process and the variational algorithm we consider is for fixed time, we present a way to discuss the potential speedup of thermalisation that can be expected from such variational algorithms.

Why This Paper Matters

  • This paper contributes to the Quantum Thermodynamics research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • Optimizing open quantum system evolution is an important step on the way to achieving quantum computing and quantum thermodynamic tasks.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1711.08776 [2] arXiv https://arxiv.org/abs/1711.08776 [3] Publisher https://arxiv.org/abs/1711.08776

Local Citation Graph (Related-Paper Links)

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