Faint trace of a particle in a noisy Vaidman three-path interferometer

Abstract We study weak traces of particle passing Vaidman’s nested Mach–Zehnder interferometer. We investigate an effect of decoherence caused by an environment coupled to internal degree of freedom (a spin) of a travelling particle. We consider two models: pure decoherence leading to exact results...

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Autor principal:	Jerzy Dajka
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/70561a771e574cd592e71238c6cc2edd
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spelling	oai:doaj.org-article:70561a771e574cd592e71238c6cc2edd2021-12-02T15:23:09ZFaint trace of a particle in a noisy Vaidman three-path interferometer10.1038/s41598-020-80806-z2045-2322https://doaj.org/article/70561a771e574cd592e71238c6cc2edd2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80806-zhttps://doaj.org/toc/2045-2322Abstract We study weak traces of particle passing Vaidman’s nested Mach–Zehnder interferometer. We investigate an effect of decoherence caused by an environment coupled to internal degree of freedom (a spin) of a travelling particle. We consider two models: pure decoherence leading to exact results and weak coupling Davies approximation allowing to include dissipative effects. We show that potentially anomalous discontinuity of particle paths survives an effect of decoherence unless it affects internal part of the nested interferometer.Jerzy DajkaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jerzy Dajka Faint trace of a particle in a noisy Vaidman three-path interferometer
description	Abstract We study weak traces of particle passing Vaidman’s nested Mach–Zehnder interferometer. We investigate an effect of decoherence caused by an environment coupled to internal degree of freedom (a spin) of a travelling particle. We consider two models: pure decoherence leading to exact results and weak coupling Davies approximation allowing to include dissipative effects. We show that potentially anomalous discontinuity of particle paths survives an effect of decoherence unless it affects internal part of the nested interferometer.
format	article
author	Jerzy Dajka
author_facet	Jerzy Dajka
author_sort	Jerzy Dajka
title	Faint trace of a particle in a noisy Vaidman three-path interferometer
title_short	Faint trace of a particle in a noisy Vaidman three-path interferometer
title_full	Faint trace of a particle in a noisy Vaidman three-path interferometer
title_fullStr	Faint trace of a particle in a noisy Vaidman three-path interferometer
title_full_unstemmed	Faint trace of a particle in a noisy Vaidman three-path interferometer
title_sort	faint trace of a particle in a noisy vaidman three-path interferometer
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/70561a771e574cd592e71238c6cc2edd
work_keys_str_mv	AT jerzydajka fainttraceofaparticleinanoisyvaidmanthreepathinterferometer
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Faint trace of a particle in a noisy Vaidman three-path interferometer

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