Putting a cap on causality violations in CDT
The formalism of causal dynamical triangulations (CDT) provides us with a non-perturbatively defined model of quantum gravity, where the sum over histories includes only causal space-time histories. Path integrals of CDT and their continuum limits have been studied in two, three and four dimensions....
| Main Authors: | , , , |
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| Format: | Journal article |
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2007
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| _version_ | 1826304985529319424 |
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| author | Ambjorn, J Loll, R Westra, W Zohren, S |
| author_facet | Ambjorn, J Loll, R Westra, W Zohren, S |
| author_sort | Ambjorn, J |
| collection | OXFORD |
| description | The formalism of causal dynamical triangulations (CDT) provides us with a non-perturbatively defined model of quantum gravity, where the sum over histories includes only causal space-time histories. Path integrals of CDT and their continuum limits have been studied in two, three and four dimensions. Here we investigate a generalization of the two-dimensional CDT model, where the causality constraint is partially lifted by introducing weighted branching points, and demonstrate that the system can be solved analytically in the genus-zero sector. |
| first_indexed | 2024-03-07T06:26:01Z |
| format | Journal article |
| id | oxford-uuid:f450bf07-5e73-4766-bd09-e016a1be8a39 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:26:01Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:f450bf07-5e73-4766-bd09-e016a1be8a392022-03-27T12:18:54ZPutting a cap on causality violations in CDTJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f450bf07-5e73-4766-bd09-e016a1be8a39Symplectic Elements at Oxford2007Ambjorn, JLoll, RWestra, WZohren, SThe formalism of causal dynamical triangulations (CDT) provides us with a non-perturbatively defined model of quantum gravity, where the sum over histories includes only causal space-time histories. Path integrals of CDT and their continuum limits have been studied in two, three and four dimensions. Here we investigate a generalization of the two-dimensional CDT model, where the causality constraint is partially lifted by introducing weighted branching points, and demonstrate that the system can be solved analytically in the genus-zero sector. |
| spellingShingle | Ambjorn, J Loll, R Westra, W Zohren, S Putting a cap on causality violations in CDT |
| title | Putting a cap on causality violations in CDT |
| title_full | Putting a cap on causality violations in CDT |
| title_fullStr | Putting a cap on causality violations in CDT |
| title_full_unstemmed | Putting a cap on causality violations in CDT |
| title_short | Putting a cap on causality violations in CDT |
| title_sort | putting a cap on causality violations in cdt |
| work_keys_str_mv | AT ambjornj puttingacaponcausalityviolationsincdt AT lollr puttingacaponcausalityviolationsincdt AT westraw puttingacaponcausalityviolationsincdt AT zohrens puttingacaponcausalityviolationsincdt |