Geometric phase in Taub-NUT spacetime

Abstract Constructing the Hamiltonian in the $$\eta $$ η -representation, we explore the geometric phase in the Taub-NUT spacetime, which is spherically symmetric and stationary. The geometric phase around a non-rotating Taub-NUT spacetime reveals both the gravitational analog of Aharonov–Bohm effec...

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Main Authors: Chandrachur Chakraborty, Banibrata Mukhopadhyay
Format: Article
Language:English
Published: SpringerOpen 2023-10-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-12070-0
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author Chandrachur Chakraborty
Banibrata Mukhopadhyay
author_facet Chandrachur Chakraborty
Banibrata Mukhopadhyay
author_sort Chandrachur Chakraborty
collection DOAJ
description Abstract Constructing the Hamiltonian in the $$\eta $$ η -representation, we explore the geometric phase in the Taub-NUT spacetime, which is spherically symmetric and stationary. The geometric phase around a non-rotating Taub-NUT spacetime reveals both the gravitational analog of Aharonov–Bohm effect and Pancharatnam–Berry phase, similar to the rotating Kerr background. On the other hand, only the latter emerges in the spherically symmetric Schwarzschild geometry as well as in the axisymmetric magnetized Schwarzschild geometry. With this result, we argue that the Aharonov–Bohm effect and Pancharatnam–Berry phase both can emerge in the stationary spacetime, whereas only the latter emerges in the static spacetime. We outline plausible measurements of these effects/phases, mostly for primordial black holes.
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spelling doaj.art-4899a365752741d5a6dd49593e66df822024-03-24T12:30:25ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-10-0183101910.1140/epjc/s10052-023-12070-0Geometric phase in Taub-NUT spacetimeChandrachur Chakraborty0Banibrata Mukhopadhyay1Manipal Centre for Natural Sciences, Manipal Academy of Higher EducationDepartment of Physics, Indian Institute of ScienceAbstract Constructing the Hamiltonian in the $$\eta $$ η -representation, we explore the geometric phase in the Taub-NUT spacetime, which is spherically symmetric and stationary. The geometric phase around a non-rotating Taub-NUT spacetime reveals both the gravitational analog of Aharonov–Bohm effect and Pancharatnam–Berry phase, similar to the rotating Kerr background. On the other hand, only the latter emerges in the spherically symmetric Schwarzschild geometry as well as in the axisymmetric magnetized Schwarzschild geometry. With this result, we argue that the Aharonov–Bohm effect and Pancharatnam–Berry phase both can emerge in the stationary spacetime, whereas only the latter emerges in the static spacetime. We outline plausible measurements of these effects/phases, mostly for primordial black holes.https://doi.org/10.1140/epjc/s10052-023-12070-0
spellingShingle Chandrachur Chakraborty
Banibrata Mukhopadhyay
Geometric phase in Taub-NUT spacetime
European Physical Journal C: Particles and Fields
title Geometric phase in Taub-NUT spacetime
title_full Geometric phase in Taub-NUT spacetime
title_fullStr Geometric phase in Taub-NUT spacetime
title_full_unstemmed Geometric phase in Taub-NUT spacetime
title_short Geometric phase in Taub-NUT spacetime
title_sort geometric phase in taub nut spacetime
url https://doi.org/10.1140/epjc/s10052-023-12070-0
work_keys_str_mv AT chandrachurchakraborty geometricphaseintaubnutspacetime
AT banibratamukhopadhyay geometricphaseintaubnutspacetime