Topology change in causal quantum gravity
The role of topology change in a fundamental theory of quantum gravity is still a matter of debate. However, when regarding string theory as two-dimensional quantum gravity, topological fluctuations are essential. Here we present a third quantization of two-dimensional surfaces based on the method o...
| Main Authors: | , , , , |
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| Format: | Conference item |
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2008
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| _version_ | 1826304029149364224 |
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| author | Ambjorn, J Loll, R Watabiki, Y Westra, W Zohren, S |
| author_facet | Ambjorn, J Loll, R Watabiki, Y Westra, W Zohren, S |
| author_sort | Ambjorn, J |
| collection | OXFORD |
| description | The role of topology change in a fundamental theory of quantum gravity is still a matter of debate. However, when regarding string theory as two-dimensional quantum gravity, topological fluctuations are essential. Here we present a third quantization of two-dimensional surfaces based on the method of causal dynamical triangulation (CDT). Formally, our construction is similar to the c = 0 non-critical string field theory developed by Ishibashi, Kawai and others, but physically it is quite distinct. Unlike in non-critical string theory the topology change of spatial slices is well controlled and regulated by Newton's constant. |
| first_indexed | 2024-03-07T06:11:38Z |
| format | Conference item |
| id | oxford-uuid:efb471b7-7522-4200-a011-dcf3c94112c5 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:11:38Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:efb471b7-7522-4200-a011-dcf3c94112c52022-03-27T11:42:09ZTopology change in causal quantum gravityConference itemhttp://purl.org/coar/resource_type/c_5794uuid:efb471b7-7522-4200-a011-dcf3c94112c5Symplectic Elements at Oxford2008Ambjorn, JLoll, RWatabiki, YWestra, WZohren, SThe role of topology change in a fundamental theory of quantum gravity is still a matter of debate. However, when regarding string theory as two-dimensional quantum gravity, topological fluctuations are essential. Here we present a third quantization of two-dimensional surfaces based on the method of causal dynamical triangulation (CDT). Formally, our construction is similar to the c = 0 non-critical string field theory developed by Ishibashi, Kawai and others, but physically it is quite distinct. Unlike in non-critical string theory the topology change of spatial slices is well controlled and regulated by Newton's constant. |
| spellingShingle | Ambjorn, J Loll, R Watabiki, Y Westra, W Zohren, S Topology change in causal quantum gravity |
| title | Topology change in causal quantum gravity |
| title_full | Topology change in causal quantum gravity |
| title_fullStr | Topology change in causal quantum gravity |
| title_full_unstemmed | Topology change in causal quantum gravity |
| title_short | Topology change in causal quantum gravity |
| title_sort | topology change in causal quantum gravity |
| work_keys_str_mv | AT ambjornj topologychangeincausalquantumgravity AT lollr topologychangeincausalquantumgravity AT watabikiy topologychangeincausalquantumgravity AT westraw topologychangeincausalquantumgravity AT zohrens topologychangeincausalquantumgravity |