Thermal representations in group field theory: squeezed vacua and quantum gravity condensates
Abstract We apply the formalism of thermofield dynamics to group field theory quantum gravity and construct thermal representations associated with generalised equilibrium Gibbs states using Bogoliubov transformations. The newly constructed class of thermal vacua are entangled, two-mode squeezed, th...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-02-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP02(2020)173 |
| _version_ | 1818037312858095616 |
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| author | Mehdi Assanioussi Isha Kotecha |
| author_facet | Mehdi Assanioussi Isha Kotecha |
| author_sort | Mehdi Assanioussi |
| collection | DOAJ |
| description | Abstract We apply the formalism of thermofield dynamics to group field theory quantum gravity and construct thermal representations associated with generalised equilibrium Gibbs states using Bogoliubov transformations. The newly constructed class of thermal vacua are entangled, two-mode squeezed, thermofield double states. The corresponding finite temperature representations are inequivalent to the standard zero temperature one based on a degenerate vacuum. An interesting class of states, coherent thermal states, are defined and understood as thermal quantum gravity condensates. |
| first_indexed | 2024-12-10T07:24:51Z |
| format | Article |
| id | doaj.art-393a2d4c39fd4788accfddf3b37d68cc |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-10T07:24:51Z |
| publishDate | 2020-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-393a2d4c39fd4788accfddf3b37d68cc2022-12-22T01:57:44ZengSpringerOpenJournal of High Energy Physics1029-84792020-02-012020212210.1007/JHEP02(2020)173Thermal representations in group field theory: squeezed vacua and quantum gravity condensatesMehdi Assanioussi0Isha Kotecha1II. Institute for Theoretical Physics, University of HamburgMax Planck Institute for Gravitational Physics (Albert Einstein Institute)Abstract We apply the formalism of thermofield dynamics to group field theory quantum gravity and construct thermal representations associated with generalised equilibrium Gibbs states using Bogoliubov transformations. The newly constructed class of thermal vacua are entangled, two-mode squeezed, thermofield double states. The corresponding finite temperature representations are inequivalent to the standard zero temperature one based on a degenerate vacuum. An interesting class of states, coherent thermal states, are defined and understood as thermal quantum gravity condensates.http://link.springer.com/article/10.1007/JHEP02(2020)173Models of Quantum GravityNonperturbative EffectsThermal Field Theory |
| spellingShingle | Mehdi Assanioussi Isha Kotecha Thermal representations in group field theory: squeezed vacua and quantum gravity condensates Journal of High Energy Physics Models of Quantum Gravity Nonperturbative Effects Thermal Field Theory |
| title | Thermal representations in group field theory: squeezed vacua and quantum gravity condensates |
| title_full | Thermal representations in group field theory: squeezed vacua and quantum gravity condensates |
| title_fullStr | Thermal representations in group field theory: squeezed vacua and quantum gravity condensates |
| title_full_unstemmed | Thermal representations in group field theory: squeezed vacua and quantum gravity condensates |
| title_short | Thermal representations in group field theory: squeezed vacua and quantum gravity condensates |
| title_sort | thermal representations in group field theory squeezed vacua and quantum gravity condensates |
| topic | Models of Quantum Gravity Nonperturbative Effects Thermal Field Theory |
| url | http://link.springer.com/article/10.1007/JHEP02(2020)173 |
| work_keys_str_mv | AT mehdiassanioussi thermalrepresentationsingroupfieldtheorysqueezedvacuaandquantumgravitycondensates AT ishakotecha thermalrepresentationsingroupfieldtheorysqueezedvacuaandquantumgravitycondensates |