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On the late time behavior of thermal two point function in curved space-time.

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Title: On the late time behavior of thermal two point function in curved space-time.
Authors: Diakonov, Dmitrii V.1,2 (AUTHOR) dmitrii.dyakonov@phystech.edu, Zverev, Gleb S.1 (AUTHOR) zverev.gs@phystech.edu
Source: European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-9. 9p.
Subjects: Curved spacetime, Bose-Einstein gas, Time, Asymptotic expansions, Phase transitions
Abstract: We investigate the late-time behavior of the thermal Wightman function for a Bose gas in a curved space-time with a Killing horizon. We demonstrate that the late-time behavior undergoes a sharp transition at a critical temperature, reminiscent of a phase transition. Contrary to expectations for typical gases, the relaxation time does not vanish at high temperatures but instead saturates to a constant value that depends on the imaginary part of the lowest quasinormal modes. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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PubType: Academic Journal
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  Data: On the late time behavior of thermal two point function in curved space-time.
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  Data: <searchLink fieldCode="AR" term="%22Diakonov%2C+Dmitrii+V%2E%22">Diakonov, Dmitrii V.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> dmitrii.dyakonov@phystech.edu</i><br /><searchLink fieldCode="AR" term="%22Zverev%2C+Gleb+S%2E%22">Zverev, Gleb S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zverev.gs@phystech.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. May2026, Vol. 86 Issue 5, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Curved+spacetime%22">Curved spacetime</searchLink><br /><searchLink fieldCode="DE" term="%22Bose-Einstein+gas%22">Bose-Einstein gas</searchLink><br /><searchLink fieldCode="DE" term="%22Time%22">Time</searchLink><br /><searchLink fieldCode="DE" term="%22Asymptotic+expansions%22">Asymptotic expansions</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink>
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  Data: We investigate the late-time behavior of the thermal Wightman function for a Bose gas in a curved space-time with a Killing horizon. We demonstrate that the late-time behavior undergoes a sharp transition at a critical temperature, reminiscent of a phase transition. Contrary to expectations for typical gases, the relaxation time does not vanish at high temperatures but instead saturates to a constant value that depends on the imaginary part of the lowest quasinormal modes. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1140/epjc/s10052-026-15800-2
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        Text: English
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      – SubjectFull: Bose-Einstein gas
        Type: general
      – SubjectFull: Time
        Type: general
      – SubjectFull: Asymptotic expansions
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      – SubjectFull: Phase transitions
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              Text: May2026
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