Year: 2020
Type: article
Abstract: An open question of fundamental importance in quantum thermodynamics is how to describe the statistics of work for the initial state with quantum coherence. In this paper, work statistics is considered from the perspective of ``wave-particle'' duality. Based on the generalized quantum work measurement, predictability of energy levels ${\mathcal{D}}_{W}$ and effectiveness of coherence ${\mathcal{V}}_{W}$ are defined, and they obey inequality ${\mathcal{D}}_{W}^{2}+{\mathcal{V}}_{W}^{2}\ensuremath{\le}1$, which is the fundamental tradeoff relations between the contributions of population and coherence to quantum work distribution. As an application, we consider a driven two-level system and discuss the condition of the bound of above tradeoff relation. These results shed light on the effects of quantum coherence in quantum thermodynamics.
Source: Physical Review A
Authors: Bao-Ming Xu, Zhan Chun Tu, Jian Zou
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G5783854500, G5972228089, G8786589836
OpenAlex ID: W2919348371