A Langevin canonical approach to the dynamics of chiral two level systems. Thermal averages and heat capacity

Abstract

A Langevin canonical framework for a chiral two--level system coupled to a bath of harmonic oscillators is developed within a coupling scheme different to the well known spin-boson model. Thermal equilibrium values are reached at asymptotic times by solving the corresponding set of non--linear coupled equations in a Markovian regime. In particular, phase difference thermal values (or, equivalently, the so--called coherence factor) and heat capacity through energy fluctuations are obtained and discussed in terms of tunneling rates and asymmetries.

9 pages, 7 figures. arXiv admin note: text overlap with arXiv:1207.3349

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• Quantum Computing
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Cited by in corpus (4)

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• Dissipative evolution of a two-level system through a geometry-based classical mapping
• Quantum thermodynamics in chiral two--level systems. The quantum stochastic resonance