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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.22835 |
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| _version_ | 1866915417780387840 |
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| author | Ford, L. H. Ho, I-Tai Wu, Chun-Hsien |
| author_facet | Ford, L. H. Ho, I-Tai Wu, Chun-Hsien |
| contents | Inflationary tensor perturbations are treated as arising from a bath of gravitons produced by quantum particle creation at the end of inflation. We calculate the correlation function of the CMB temperature fluctuations produced by these gravitons in a model with an infrared cut off. The CMB photons are emitted from within a last scattering shell of finite thickness in redshift. We find the correlation function in terms of the separation of a pair of spacetime points of emission in both angle and redshift. In both variables, there is a significant amount of anti-correlation. The anti-correlation minimum has a relative magnitude compared to the central correlation maximum of about 20% in angle and 50% in redshift. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_22835 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Gravitons and Temperature Fluctuation Correlations from Inflation Ford, L. H. Ho, I-Tai Wu, Chun-Hsien General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory Inflationary tensor perturbations are treated as arising from a bath of gravitons produced by quantum particle creation at the end of inflation. We calculate the correlation function of the CMB temperature fluctuations produced by these gravitons in a model with an infrared cut off. The CMB photons are emitted from within a last scattering shell of finite thickness in redshift. We find the correlation function in terms of the separation of a pair of spacetime points of emission in both angle and redshift. In both variables, there is a significant amount of anti-correlation. The anti-correlation minimum has a relative magnitude compared to the central correlation maximum of about 20% in angle and 50% in redshift. |
| title | Gravitons and Temperature Fluctuation Correlations from Inflation |
| topic | General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2507.22835 |