Capacity and Entropy of a Retro-Causal Channel Observed in a Twin Mach-Zehnder Interferometer During Measurements of Pre- and Post-Selected Quantum Systems

Autor:	Scott E. Spence, Allen D. Parks
Rok vydání:	2018
Předmět:	channel capacity quantum measurement General Physics and Astronomy lcsh:Astrophysics Mach–Zehnder interferometer 01 natural sciences Article 010305 fluids & plasmas Channel capacity retro-causal channel lcsh:QB460-466 0103 physical sciences pre- and post-selected systems channel entropy Statistical physics lcsh:Science 010306 general physics Quantum Pre and post Computer Science::Information Theory Physics System of measurement Experimental data lcsh:QC1-999 Interferometry lcsh:Q lcsh:Physics Communication channel
Zdroj:	Entropy; Volume 20; Issue 6; Pages: 411 Entropy Entropy, Vol 20, Iss 6, p 411 (2018)
ISSN:	1099-4300
Popis:	Simple intuitive models are presented for the capacity and entropy of retro-causal channels in measured ensembles of quantum systems which can be represented as statistical mixtures of pre-selected only and pre- and post-selected systems. Measurement data from a twin Mach-Zehnder interferometer experiment are used in these models to discuss the capacity and entropy of an apparent retro-causal channel observed in the experimental data. It is noted that low capacity/low entropy retro-causal channels can exist in strong measurement systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c1b4e4a68e743c1b9de807e37ec9de0 https://pubmed.ncbi.nlm.nih.gov/33265501 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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