| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10722676 | Physics Letters B | 2011 | 4 Pages |
Abstract
It has long been conjectured that the Euclidean Schwarzschild and Euclidean Kerr instantons are the only non-trivial asymptotically flat (AF) gravitational instantons. In this Letter, we show that this conjecture is false by explicitly constructing a new two-parameter AF gravitational instanton with a U(1)ÃU(1) isometry group, using the inverse-scattering method. It has Euler number Ï=3 and Hirzebruch signature Ï=1, and its global topology is CP2 with a circle S1 removed appropriately. Various other properties of this gravitational instanton are also discussed.
Related Topics
Physical Sciences and Engineering
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Nuclear and High Energy Physics
Authors
Yu Chen, Edward Teo,