A note on the measures of process fidelity for non-unitary quantum operations

2011/11/10 by Joydip Ghosh, Ghosh, Joydip
Computer Science · Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #Mathematical Physics (math-ph) #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #math-ph #math.MP #quant-ph

paper · pdf · doi:10.48550/arxiv.1111.2478

5 pages, 1 figure

arxiv created 2011/11/10 · openalex publication_date 2011/11/10 · arxiv updated 2011/11/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Various fidelity measures can be defined between two quantum processes especially when at least one of them is non-unitary. In this paper we consider two such measures of state averaged process fidelity, put forward an efficient procedure to compute them and investigate their mathematical properties as well as their relationship.

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