Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium
We consider the out-of-thermal-equilibrium Casimir-Polder interaction between atoms of He<inline-formula><math display="inline"><semantics><msup><mrow></mrow><mo>*</mo></msup></semantics></math></inline-formula>, Na, C...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Atoms |
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| Online Access: | https://www.mdpi.com/2218-2004/9/1/4 |
| _version_ | 1797411662512259072 |
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| author | Galina L. Klimchitskaya Vladimir M. Mostepanenko |
| author_facet | Galina L. Klimchitskaya Vladimir M. Mostepanenko |
| author_sort | Galina L. Klimchitskaya |
| collection | DOAJ |
| description | We consider the out-of-thermal-equilibrium Casimir-Polder interaction between atoms of He<inline-formula><math display="inline"><semantics><msup><mrow></mrow><mo>*</mo></msup></semantics></math></inline-formula>, 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 <inline-formula><math display="inline"><semantics><msup><mrow></mrow><mn>87</mn></msup></semantics></math></inline-formula>Rb 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. |
| first_indexed | 2024-03-09T04:48:24Z |
| format | Article |
| id | doaj.art-f75dfd49c7284ff59bf2f22b13d76282 |
| institution | Directory Open Access Journal |
| issn | 2218-2004 |
| language | English |
| last_indexed | 2024-03-09T04:48:24Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atoms |
| spelling | doaj.art-f75dfd49c7284ff59bf2f22b13d762822023-12-03T13:13:12ZengMDPI AGAtoms2218-20042021-01-0191410.3390/atoms9010004Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal EquilibriumGalina L. Klimchitskaya0Vladimir M. Mostepanenko1Central Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, 196140 Saint Petersburg, RussiaCentral Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, 196140 Saint Petersburg, RussiaWe consider the out-of-thermal-equilibrium Casimir-Polder interaction between atoms of He<inline-formula><math display="inline"><semantics><msup><mrow></mrow><mo>*</mo></msup></semantics></math></inline-formula>, 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 <inline-formula><math display="inline"><semantics><msup><mrow></mrow><mn>87</mn></msup></semantics></math></inline-formula>Rb 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.https://www.mdpi.com/2218-2004/9/1/4atom-wall interactionatomic polarizabilitynonequilibrium Casimir-Polder forcephase-change materialdielectric-to-metal phase transition |
| spellingShingle | Galina L. Klimchitskaya Vladimir M. Mostepanenko Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium Atoms atom-wall interaction atomic polarizability nonequilibrium Casimir-Polder force phase-change material dielectric-to-metal phase transition |
| title | Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium |
| title_full | Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium |
| title_fullStr | Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium |
| title_full_unstemmed | Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium |
| title_short | Casimir-Polder Interaction of an Atom with a Cavity Wall Made of Phase-Change Material out of Thermal Equilibrium |
| title_sort | casimir polder interaction of an atom with a cavity wall made of phase change material out of thermal equilibrium |
| topic | atom-wall interaction atomic polarizability nonequilibrium Casimir-Polder force phase-change material dielectric-to-metal phase transition |
| url | https://www.mdpi.com/2218-2004/9/1/4 |
| work_keys_str_mv | AT galinalklimchitskaya casimirpolderinteractionofanatomwithacavitywallmadeofphasechangematerialoutofthermalequilibrium AT vladimirmmostepanenko casimirpolderinteractionofanatomwithacavitywallmadeofphasechangematerialoutofthermalequilibrium |