A new AF gravitational instanton

Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.physletb.2011.07.076

DC Field	Value
dc.title	A new AF gravitational instanton
dc.contributor.author	Chen, Y.
dc.contributor.author	Teo, E.
dc.date.accessioned	2014-10-16T09:14:10Z
dc.date.available	2014-10-16T09:14:10Z
dc.date.issued	2011-09-14
dc.identifier.citation	Chen, Y., Teo, E. (2011-09-14). A new AF gravitational instanton. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 703 (3) : 359-362. ScholarBank@NUS Repository. https://doi.org/10.1016/j.physletb.2011.07.076
dc.identifier.issn	03702693
dc.identifier.uri	http://scholarbank.nus.edu.sg/handle/10635/95648
dc.description.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)×U(1) isometry group, using the inverse-scattering method. It has Euler number χ=3 and Hirzebruch signature τ=1, and its global topology is CP2 with a circle S1 removed appropriately. Various other properties of this gravitational instanton are also discussed. © 2011 Elsevier B.V.
dc.description.uri	http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.physletb.2011.07.076
dc.source	Scopus
dc.type	Article
dc.contributor.department	PHYSICS
dc.description.doi	10.1016/j.physletb.2011.07.076
dc.description.sourcetitle	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.description.volume	703
dc.description.issue	3
dc.description.page	359-362
dc.description.coden	PYLBA
dc.identifier.isiut	000295198300022
Appears in Collections:	Staff Publications

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