On time-reversal and space-time harmonic processes for Markovian quantum channels

被引：6
|
作者：
Ticozzi, Francesco [1 ]
Pavon, Michele [2 ]
机构：
[1] Univ Padua, Dipartimento Ingn Informaz, I-35131 Padua, Italy
[2] Univ Padua, Dipartimento Matemat Pura & Applicata, I-35131 Padua, Italy
来源：
QUANTUM INFORMATION PROCESSING | 2010年 / 9卷 / 05期
关键词：
Quantum channel; Time reversal; Space-time harmonic process; H-theorem; RELATIVE ENTROPY;
D O I：
10.1007/s11128-010-0186-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The time reversal of a completely-positive, nonequilibrium discrete-time quantum Markov evolution is derived in a general framework via a suitable adjointness relation. Space-time harmonic processes are then introduced for the forward and reverse-time transition mechanisms, and their role in the study of quantum dynamics is illustrated by discussing (operator and scalar) relative entropy dynamics.
引用
收藏
页码：551 / 574
页数：24
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