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Massive scalar field in de Sitter spacetime: a two-loop calculation and a comparison with the stochastic approach
Abstract We examine long-wavelength correlation functions of massive scalar fields in de Sitter spacetime. For the theory with a quartic self-interaction, the two-point function is calculated up to two loops. Comparing our results with the Hartree–Fock approximation and with the stochastic approach...
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| Main Authors: | , , |
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| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
SpringerOpen
2022-04-01
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| 叢編: | European Physical Journal C: Particles and Fields |
| 在線閱讀: | https://doi.org/10.1140/epjc/s10052-022-10295-z |
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