Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases
We have studied conditions of photon Bose-Einstein condensate formation that is in thermodynamic equilibrium with ideal gas of two-level Bose atoms below the degeneracy temperature. Equations describing thermodynamic equilibrium in the system were formulated; critical temperatures and densities of p...
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| Дата: | 2015 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2015
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/155271 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases / N. Boichenko, Yu. Slyusarenko // Condensed Matter Physics. — 2015. — Т. 18, № 4. — С. 43002: 1–18. — Бібліогр.: 32 назв. — англ. |
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irk-123456789-1552712019-06-17T01:28:44Z Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases Boichenko, N. Slyusarenko, Yu. We have studied conditions of photon Bose-Einstein condensate formation that is in thermodynamic equilibrium with ideal gas of two-level Bose atoms below the degeneracy temperature. Equations describing thermodynamic equilibrium in the system were formulated; critical temperatures and densities of photonic and atomic gas subsystems were obtained analytically. Coexistence conditions of these photonic and atomic Bose-Einstein condensates were found. There was predicted the possibility of an abrupt type of photon condensation in the presence of Bose condensate of ground-state atoms: it was shown that the slightest decrease of the temperature could cause a significant gathering of photons in the condensate. This case could be treated as a simple model of the situation known as "stopped light" in cold atomic gas. We also showed how population inversion of atomic levels can be created by lowering the temperature. The latter situation looks promising for light accumulation in atomic vapor at very low temperatures. Дослiджено умови утворення конденсату Бозе-Ейнштейна для фотонiв, якi знаходяться у станi термодинамiчної рiвноваги з iдеальним газом дворiвневих бозе-атомiв нижче температури виродження. Сформульовано рiвняння, що описують умови термодинамiчної рiвноваги в системi. Отримано аналiтичнi вирази для критичних температур та густин конденсатiв у фотонних i атомарних пiдсистемах. Визначено умови спiвiснування бозе-конденсатiв в атомарних i фотонних компонентах. Передбачено можливiсть “рiзкого” режиму конденсацiї фотонiв за присутностi бозе-конденсату атомiв в основному станi: показано, що навiть мале зниження температури може привести до значного збiльшенню фотонiв у конденсатi. Цей випадок пропонується розглядати в якостi простої моделi ситуацiї, вiдомої як “зупинене свiтло” у холодному атомарному газi. Вказано на можливiсть iнверсної заселеностi атомних рiвнiв шляхом зниження температури. Дане явище виглядає перспективним з точки зору накопичення свiтла в атомарних газах за наднизьких температур. 2015 Article Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases / N. Boichenko, Yu. Slyusarenko // Condensed Matter Physics. — 2015. — Т. 18, № 4. — С. 43002: 1–18. — Бібліогр.: 32 назв. — англ. 1607-324X PACS: 03.75.-b, 03.75.Hh, 03.75.Nt, 42.50.Ar DOI:10.5488/CMP.18.43002 arXiv:1404.7390 http://dspace.nbuv.gov.ua/handle/123456789/155271 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
We have studied conditions of photon Bose-Einstein condensate formation that is in thermodynamic equilibrium with ideal gas of two-level Bose atoms below the degeneracy temperature. Equations describing thermodynamic equilibrium in the system were formulated; critical temperatures and densities of photonic and atomic gas subsystems were obtained analytically. Coexistence conditions of these photonic and atomic Bose-Einstein condensates were found. There was predicted the possibility of an abrupt type of photon condensation in the presence of Bose condensate of ground-state atoms: it was shown that the slightest decrease of the temperature could cause a significant gathering of photons in the condensate. This case could be treated as a simple model of the situation known as "stopped light" in cold atomic gas. We also showed how population inversion of atomic levels can be created by lowering the temperature. The latter situation looks promising for light accumulation in atomic vapor at very low temperatures. |
| format |
Article |
| author |
Boichenko, N. Slyusarenko, Yu. |
| spellingShingle |
Boichenko, N. Slyusarenko, Yu. Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases Condensed Matter Physics |
| author_facet |
Boichenko, N. Slyusarenko, Yu. |
| author_sort |
Boichenko, N. |
| title |
Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases |
| title_short |
Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases |
| title_full |
Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases |
| title_fullStr |
Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases |
| title_full_unstemmed |
Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases |
| title_sort |
coexistence of photonic and atomic bose-einstein condensates in ideal atomic gases |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2015 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/155271 |
| citation_txt |
Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases / N. Boichenko, Yu. Slyusarenko // Condensed Matter Physics. — 2015. — Т. 18, № 4. — С. 43002: 1–18. — Бібліогр.: 32 назв. — англ. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT boichenkon coexistenceofphotonicandatomicboseeinsteincondensatesinidealatomicgases AT slyusarenkoyu coexistenceofphotonicandatomicboseeinsteincondensatesinidealatomicgases |
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2023-05-20T17:46:30Z |
| last_indexed |
2023-05-20T17:46:30Z |
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1796154062700281856 |