Late-time structure of the Bunch-Davies de Sitter wavefunction
We examine the late time behavior of the Bunch-Davies wavefunction for interacting light fields in a de Sitter background. We use perturbative techniques developed in the framework of AdS/CFT, and analytically continue to compute tree and loop level contributions to the Bunch-Davies wavefunction....
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| Format: | Article |
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Institute of Physics Publishing/SISSA
2016
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| Online Access: | http://hdl.handle.net/1721.1/100831 https://orcid.org/0000-0001-8408-1941 https://orcid.org/0000-0003-2606-7812 |
| _version_ | 1826190111564365824 |
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| author | Anninos, Dionysios Anous, Tarek Freedman, Daniel Z. Konstantinidis, George |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Anninos, Dionysios Anous, Tarek Freedman, Daniel Z. Konstantinidis, George |
| author_sort | Anninos, Dionysios |
| collection | MIT |
| description | We examine the late time behavior of the Bunch-Davies wavefunction for interacting light fields in a de Sitter background. We use perturbative techniques developed in the framework of AdS/CFT, and analytically continue to compute tree and loop level contributions to the Bunch-Davies wavefunction. We consider self-interacting scalars of general mass, but focus especially on the massless and conformally coupled cases. We show that certain contributions grow logarithmically in conformal time both at tree and loop level. We also consider gauge fields and gravitons. The four-dimensional Fefferman-Graham expansion of classical asymptotically de Sitter solutions is used to show that the wavefunction contains no logarithmic growth in the pure graviton sector at tree level. Finally, assuming a holographic relation between the wavefunction and the partition function of a conformal field theory, we interpret the logarithmic growths in the language of conformal field theory. |
| first_indexed | 2024-09-23T08:35:12Z |
| format | Article |
| id | mit-1721.1/100831 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:35:12Z |
| publishDate | 2016 |
| publisher | Institute of Physics Publishing/SISSA |
| record_format | dspace |
| spelling | mit-1721.1/1008312022-09-23T13:06:40Z Late-time structure of the Bunch-Davies de Sitter wavefunction Anninos, Dionysios Anous, Tarek Freedman, Daniel Z. Konstantinidis, George Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Mathematics Massachusetts Institute of Technology. Laboratory for Nuclear Science Anous, Tarek Freedman, Daniel Z. We examine the late time behavior of the Bunch-Davies wavefunction for interacting light fields in a de Sitter background. We use perturbative techniques developed in the framework of AdS/CFT, and analytically continue to compute tree and loop level contributions to the Bunch-Davies wavefunction. We consider self-interacting scalars of general mass, but focus especially on the massless and conformally coupled cases. We show that certain contributions grow logarithmically in conformal time both at tree and loop level. We also consider gauge fields and gravitons. The four-dimensional Fefferman-Graham expansion of classical asymptotically de Sitter solutions is used to show that the wavefunction contains no logarithmic growth in the pure graviton sector at tree level. Finally, assuming a holographic relation between the wavefunction and the partition function of a conformal field theory, we interpret the logarithmic growths in the language of conformal field theory. National Science Foundation (U.S.) (Grant PHY-0967299) United States. Dept. of Energy (Cooperative Research Agreement DE-FG02-05ER41360) 2016-01-14T16:12:27Z 2016-01-14T16:12:27Z 2015-11 2015-10 2016-01-13T17:22:38Z Article http://purl.org/eprint/type/JournalArticle 1475-7516 1475-7508 http://hdl.handle.net/1721.1/100831 Anninos, Dionysios, Tarek Anous, Daniel Z. Freedman, and George Konstantinidis. “Late-Time Structure of the Bunch-Davies de Sitter Wavefunction.” Journal of Cosmology and Astroparticle Physics 2015, no. 11 (November 30, 2015): 048–048. https://orcid.org/0000-0001-8408-1941 https://orcid.org/0000-0003-2606-7812 http://dx.doi.org/10.1088/1475-7516/2015/11/048 Journal of Cosmology and Astroparticle Physics Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Institute of Physics Publishing/SISSA TopicHub SCOAP3 |
| spellingShingle | Anninos, Dionysios Anous, Tarek Freedman, Daniel Z. Konstantinidis, George Late-time structure of the Bunch-Davies de Sitter wavefunction |
| title | Late-time structure of the Bunch-Davies de Sitter wavefunction |
| title_full | Late-time structure of the Bunch-Davies de Sitter wavefunction |
| title_fullStr | Late-time structure of the Bunch-Davies de Sitter wavefunction |
| title_full_unstemmed | Late-time structure of the Bunch-Davies de Sitter wavefunction |
| title_short | Late-time structure of the Bunch-Davies de Sitter wavefunction |
| title_sort | late time structure of the bunch davies de sitter wavefunction |
| url | http://hdl.handle.net/1721.1/100831 https://orcid.org/0000-0001-8408-1941 https://orcid.org/0000-0003-2606-7812 |
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