Spectral properties of four-time fermionic Green's functions
The spectral relations for the four-time fermionic Green’s functions are derived in the most general case. The terms which correspond to the zero-frequency anomalies, known before only for the bosonic Green’s functions, are separated and their connection with the second cumulants of the Boltzmann...
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| Veröffentlicht in: | Condensed Matter Physics |
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| Datum: | 2016 |
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| Format: | Artikel |
| Sprache: | English |
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Інститут фізики конденсованих систем НАН України
2016
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/156225 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Spectral properties of four-time fermionic Green’s functions / A.M. Shvaika // Condensed Matter Physics. — 2016. — Т. 19, № 3. — С. 33004: 1–14. — Бібліогр.: 51 назв. — англ. |
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Shvaika, A.M. 2019-06-18T10:10:23Z 2019-06-18T10:10:23Z 2016 Spectral properties of four-time fermionic Green’s functions / A.M. Shvaika // Condensed Matter Physics. — 2016. — Т. 19, № 3. — С. 33004: 1–14. — Бібліогр.: 51 назв. — англ. 1607-324X PACS: 05.30.-d DOI:10.5488/CMP.19.33004 arXiv:1512.04687 https://nasplib.isofts.kiev.ua/handle/123456789/156225 The spectral relations for the four-time fermionic Green’s functions are derived in the most general case. The terms which correspond to the zero-frequency anomalies, known before only for the bosonic Green’s functions, are separated and their connection with the second cumulants of the Boltzmann distribution function is elucidated. The high-frequency expansions of the four-time fermionic Green’s functions are provided for different directions in the frequency space Отримано в найбiльш загальнiй формi спектральнi спiввiдношення для чотиричасових фермiонних функцiй Ґрiна. Видiлено аномальнi внески на нульовiй частотi, якi ранiше були вiдомi тiльки для бозонних функцiй Ґрiна, та висвiтлено їхнiй зв’язок з другими кумулянтами функцiї розподiлу Больцмана. Приведено високочастотнi розклади чотиричасових фермiонних функцiй Ґрiна для рiзних напрямкiв в просторi частот. I am grateful to M. Jarrell, J. Moreno, and D. Galanakis for renewing my interest in this problem, to J.K. Freericks for stimulating communications, and to I.V. Stasyuk for useful discussions. I acknowledge the partial support by the Department of Energy, Office of Basic Energy Sciences, under Grant No. DEFG02-08ER46542 for the visits to Georgetown University where this work was initiated. en Інститут фізики конденсованих систем НАН України Condensed Matter Physics Spectral properties of four-time fermionic Green's functions Спектральнi властивостi чотиричасових фермiонних функцiй Ґрiна Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Spectral properties of four-time fermionic Green's functions |
| spellingShingle |
Spectral properties of four-time fermionic Green's functions Shvaika, A.M. |
| title_short |
Spectral properties of four-time fermionic Green's functions |
| title_full |
Spectral properties of four-time fermionic Green's functions |
| title_fullStr |
Spectral properties of four-time fermionic Green's functions |
| title_full_unstemmed |
Spectral properties of four-time fermionic Green's functions |
| title_sort |
spectral properties of four-time fermionic green's functions |
| author |
Shvaika, A.M. |
| author_facet |
Shvaika, A.M. |
| publishDate |
2016 |
| language |
English |
| container_title |
Condensed Matter Physics |
| publisher |
Інститут фізики конденсованих систем НАН України |
| format |
Article |
| title_alt |
Спектральнi властивостi чотиричасових фермiонних функцiй Ґрiна |
| description |
The spectral relations for the four-time fermionic Green’s functions are derived in the most general case. The
terms which correspond to the zero-frequency anomalies, known before only for the bosonic Green’s functions,
are separated and their connection with the second cumulants of the Boltzmann distribution function is elucidated. The high-frequency expansions of the four-time fermionic Green’s functions are provided for different
directions in the frequency space
Отримано в найбiльш загальнiй формi спектральнi спiввiдношення для чотиричасових фермiонних функцiй Ґрiна. Видiлено аномальнi внески на нульовiй частотi, якi ранiше були вiдомi тiльки для бозонних
функцiй Ґрiна, та висвiтлено їхнiй зв’язок з другими кумулянтами функцiї розподiлу Больцмана. Приведено високочастотнi розклади чотиричасових фермiонних функцiй Ґрiна для рiзних напрямкiв в просторi
частот.
|
| issn |
1607-324X |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/156225 |
| citation_txt |
Spectral properties of four-time fermionic Green’s functions / A.M. Shvaika // Condensed Matter Physics. — 2016. — Т. 19, № 3. — С. 33004: 1–14. — Бібліогр.: 51 назв. — англ. |
| work_keys_str_mv |
AT shvaikaam spectralpropertiesoffourtimefermionicgreensfunctions AT shvaikaam spektralʹnivlastivostičotiričasovihfermionnihfunkciigrina |
| first_indexed |
2025-12-07T20:14:00Z |
| last_indexed |
2025-12-07T20:14:00Z |
| _version_ |
1850881805219004416 |