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Open AccessArticle

Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium

1
Central Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, 196140 Saint Petersburg, Russia
2
Institute of Physics, Nanotechnology and Telecommunications, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, Russia
3
Kazan Federal University, 420008 Kazan, Russia
*
Author to whom correspondence should be addressed.
Received: 11 December 2020 / Revised: 11 January 2021 / Accepted: 11 January 2021 / Published: 14 January 2021
(This article belongs to the Section Cold Atoms, Quantum Gases and Bose-Einstein Condensation)
We consider the out-of-thermal-equilibrium Casimir-Polder interaction between atoms of He*, Na, Cs, and Rb and a cavity wall made of sapphire coated with a vanadium dioxide film which undergoes the dielectric-to-metal phase transition with increasing wall temperature. Numerical computations of the Casimir-Polder force and its gradient as the functions of atom-wall separation and wall temperature are made when the latter exceeds the temperature of the environment. The obtained results are compared with those in experiment on measuring the gradient of the Casimir-Polder force between 87Rb atoms and a silica glass wall out of thermal equilibrium. It is shown that the use of phase-change wall material significantly increases the force magnitude and especially the force gradient, as opposed to the case of a dielectric wall. View Full-Text
Keywords: atom-wall interaction; atomic polarizability; nonequilibrium Casimir-Polder force; phase-change material; dielectric-to-metal phase transition atom-wall interaction; atomic polarizability; nonequilibrium Casimir-Polder force; phase-change material; dielectric-to-metal phase transition
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MDPI and ACS Style

Klimchitskaya, G.L.; Mostepanenko, V.M. Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium. Atoms 2021, 9, 4. https://0-doi-org.brum.beds.ac.uk/10.3390/atoms9010004

AMA Style

Klimchitskaya GL, Mostepanenko VM. Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium. Atoms. 2021; 9(1):4. https://0-doi-org.brum.beds.ac.uk/10.3390/atoms9010004

Chicago/Turabian Style

Klimchitskaya, Galina L.; Mostepanenko, Vladimir M. 2021. "Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium" Atoms 9, no. 1: 4. https://0-doi-org.brum.beds.ac.uk/10.3390/atoms9010004

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