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http://hdl.handle.net/2289/6404Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Samuel, J. | - |
| dc.date.accessioned | 2016-09-26T11:57:56Z | - |
| dc.date.available | 2016-09-26T11:57:56Z | - |
| dc.date.issued | 2016-01 | - |
| dc.identifier.citation | Classical and Quantum Gravity, 2016, Vol.33, p015006 | en_US |
| dc.identifier.issn | 0264-9381 | - |
| dc.identifier.issn | 1361-6382 (Online) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/6404 | - |
| dc.description | Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) | en_US |
| dc.description.abstract | Wick rotation is usually performed by rotating the time coordinate to imaginary values. In a general curved spacetime, the notion of a time coordinate is ambiguous. We note here, that within the tetrad formalism of general relativity, it is possible to perform a Wick rotation directly in the tangent space using considerably less structure: a timelike, future pointing vector field, which need not be killing or hypersurface orthogonal. This method has the advantage of yielding real Euclidean metrics, even in spacetimes which are not static. When applied to a black hole exterior, the null generators of the event horizon reduce to points in the Euclidean spacetime. Requiring that the Wick rotated holonomy of the null generators be trivial ensures the absence of a 'conical singularity' in the Euclidean space. To illustrate the basic idea, we use the tangent space Wick rotation to compute the Hawking temperature by Euclidean methods in a few spacetimes including the Kerr black hole. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | IOP Publishing Ltd. | en_US |
| dc.relation.uri | http://arxiv.org/abs/1510.07365 | en_US |
| dc.relation.uri | http://dx.doi.org/10.1088/0264-9381/33/1/015006 | en_US |
| dc.relation.uri | http://adsabs.harvard.edu/abs/2016CQGra..33a5006S | en_US |
| dc.rights | 2016 IOP Publishing Ltd. | en_US |
| dc.subject | Euclidean methods | en_US |
| dc.title | Wick rotation in the tangent space | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | Research Papers (TP) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2016_CQG_V33_p015006.pdf Restricted Access | Restricted Access | 505.12 kB | Adobe PDF | View/Open Request a copy |
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