Topological structures in string theory
In string theory space-time comes equipped with an additional geometric structure called a B-field or 'gerbe'. I describe this structure, mention its relationship with noncommutative geometry, and explain how to use the B-field to define a twisted version of the K-theory of space-time. Str...
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| Format: | Conference item |
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2001
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| _version_ | 1797091499947589632 |
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| author | Segal, G |
| author_facet | Segal, G |
| author_sort | Segal, G |
| collection | OXFORD |
| description | In string theory space-time comes equipped with an additional geometric structure called a B-field or 'gerbe'. I describe this structure, mention its relationship with noncommutative geometry, and explain how to use the B-field to define a twisted version of the K-theory of space-time. String-theoretical space-time can contain topologically non-trivial dynamical structures called D-branes. These are simply accounted for in the framework of conformal field theory. In a highly simplified limiting case-topological field theory with a finite gauge group - the D-branes naturally represent elements of the twisted K-theory of space-time: the K-theory class is the 'charge' of the D-brane. |
| first_indexed | 2024-03-07T03:34:00Z |
| format | Conference item |
| id | oxford-uuid:bbadff63-981b-4f98-a8da-abc45474ff73 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:34:00Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:bbadff63-981b-4f98-a8da-abc45474ff732022-03-27T05:18:41ZTopological structures in string theoryConference itemhttp://purl.org/coar/resource_type/c_5794uuid:bbadff63-981b-4f98-a8da-abc45474ff73Symplectic Elements at Oxford2001Segal, GIn string theory space-time comes equipped with an additional geometric structure called a B-field or 'gerbe'. I describe this structure, mention its relationship with noncommutative geometry, and explain how to use the B-field to define a twisted version of the K-theory of space-time. String-theoretical space-time can contain topologically non-trivial dynamical structures called D-branes. These are simply accounted for in the framework of conformal field theory. In a highly simplified limiting case-topological field theory with a finite gauge group - the D-branes naturally represent elements of the twisted K-theory of space-time: the K-theory class is the 'charge' of the D-brane. |
| spellingShingle | Segal, G Topological structures in string theory |
| title | Topological structures in string theory |
| title_full | Topological structures in string theory |
| title_fullStr | Topological structures in string theory |
| title_full_unstemmed | Topological structures in string theory |
| title_short | Topological structures in string theory |
| title_sort | topological structures in string theory |
| work_keys_str_mv | AT segalg topologicalstructuresinstringtheory |