Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics
Out of thermal equilibrium state, the vacuum is unstable and evolves in time. Consequently, the annihilation operators associated with the unstable vacuum depend on time. This dissipative time-evolution of quantum systems can be systematically treated, within the canonical operator formalism refer...
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| Дата: | 2008 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2008
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119571 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics / K. Yoshida, T. Arimitsu // Condensed Matter Physics. — 2008. — Т. 11, № 4(56). — С. 687-697. — Бібліогр.: 15 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1195712017-06-08T03:07:35Z Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics Yoshida, K. Arimitsu, T. Out of thermal equilibrium state, the vacuum is unstable and evolves in time. Consequently, the annihilation operators associated with the unstable vacuum depend on time. This dissipative time-evolution of quantum systems can be systematically treated, within the canonical operator formalism referred to as non-equilibrium thermo-field dynamics. Given is an alternative route to derive the time-dependent annihilation operators within the formalism. As an example, time-dependent annihilation operators for the systems of bosonic and fermionic semi-free fields are derived. Далеко вiд стану термiчної рiвноваги вакуум є нестабiльним i змiнюється з часом. В результатi, оператори анiгiляцiї, пов’язанi з нестабiльним вакуумом, еволюцiонують з часом. Ця дисипативна часова еволюцiя квантових систем може бути систематично дослiджена в рамках формалiзму канонiчного оператора, який має назву нерiвноважна термо-польова динамiка. В рамках цього формалiзму запропоновано альтернативний шлях отримання залежних вiд часу операторiв анiгiляцiї. Як приклад, отримано залежнi вiд часу оператори анiгiляцiї для систем бозонних i фермiонних напiввiльних полiв. 2008 Article Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics / K. Yoshida, T. Arimitsu // Condensed Matter Physics. — 2008. — Т. 11, № 4(56). — С. 687-697. — Бібліогр.: 15 назв. — англ. 1607-324X PACS: 11.10.Wx, 05.30.-d DOI:10.5488/CMP.11.4.687 http://dspace.nbuv.gov.ua/handle/123456789/119571 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 |
Out of thermal equilibrium state, the vacuum is unstable and evolves in time. Consequently, the annihilation
operators associated with the unstable vacuum depend on time. This dissipative time-evolution of quantum
systems can be systematically treated, within the canonical operator formalism referred to as non-equilibrium
thermo-field dynamics. Given is an alternative route to derive the time-dependent annihilation operators within
the formalism. As an example, time-dependent annihilation operators for the systems of bosonic and fermionic
semi-free fields are derived. |
| format |
Article |
| author |
Yoshida, K. Arimitsu, T. |
| spellingShingle |
Yoshida, K. Arimitsu, T. Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics Condensed Matter Physics |
| author_facet |
Yoshida, K. Arimitsu, T. |
| author_sort |
Yoshida, K. |
| title |
Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics |
| title_short |
Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics |
| title_full |
Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics |
| title_fullStr |
Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics |
| title_full_unstemmed |
Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics |
| title_sort |
annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2008 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/119571 |
| citation_txt |
Annihilation operators associated with unstable vacua in non-equilibrium thermo-field dynamics / K. Yoshida, T. Arimitsu // Condensed Matter Physics. — 2008. — Т. 11, № 4(56). — С. 687-697. — Бібліогр.: 15 назв. — англ. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT yoshidak annihilationoperatorsassociatedwithunstablevacuainnonequilibriumthermofielddynamics AT arimitsut annihilationoperatorsassociatedwithunstablevacuainnonequilibriumthermofielddynamics |
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2023-10-18T20:34:53Z |
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2023-10-18T20:34:53Z |
| _version_ |
1796150574554546176 |