Informational work storage in quantum thermodynamics
學年 107
學期 2
出版（發表）日期 2019-06-04
作品名稱 Informational work storage in quantum thermodynamics
作品名稱（其他語言）
著者 Shang-Yung Wang
單位
出版者
著錄名稱、卷期、頁數 Quantum Reports 1(1), p.37-49
摘要 We present a critical examination of the difficulties with the quantum versions of a lifted weight that are widely used as work storage systems in quantum thermodynamics. To overcome those difficulties, we turn to the strong connections between information and thermodynamics illuminated by Szilard's engine and Landauer's principle, and consider the concept of informational work storage. This concept is in sharp contrast with the usual one of mechanical work storage underlying the idealization of a quantum weight. An informational work storage system based on maximally mixed qubits that does not act as an entropy sink and is capable of truly distinguishing work from heat is studied. Applying it to the problem of single-shot work extraction in various extraction schemes, we show that for a given system state the maximum extractable work is independent of extraction scheme, in accordance with the second law of thermodynamics.
關鍵字 quantum thermodynamics;work extraction and storage;thermodynamic resource theory
語言 en_US
ISSN 2624-960X
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度 是
國別 CHE
公開徵稿
出版型式 ,電子版
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