Brown-York mass and the thorne hoop conjecture

Show simple item record Ó Murchadha, Niall Tung, Roh-Suan Xie, Naqing Malec, Edward 2017-09-04T09:02:31Z 2017-09-04T09:02:31Z 2010
dc.identifier.citation Ó Murchadha, N., Tung, R.-S., Xie, N. and Malec, E. (2010) 'Brown-York mass and the thorne hoop conjecture', Physical Review Letters, 104(4), 041101 (4pp). doi: 10.1103/PhysRevLett.104.041101 en
dc.identifier.volume 104
dc.identifier.issued 4
dc.identifier.issn 0031-9007
dc.identifier.doi 10.1103/PhysRevLett.104.041101
dc.description.abstract The Thorne hoop conjecture is an attempt to make precise the notion that gravitational collapse occurs if enough energy is compressed into a small enough volume, with the "size" being defined by the circumference. We can make a precise statement of this form, in spherical symmetry, using the Brown-York mass as our measure of the energy. Consider a spherical 2-surface in a spherically symmetric spacetime. If the Brown-York mass M(BY) and the circumference C satisfy C<2 pi M(BY), then the system must either have emerged from a white hole or will collapse into a black hole. We show that no equivalent result can hold true using either the Liu-Yau mass M(LY) or the Wang-Yau mass M(WY). This forms a major obstacle to any attempt to establish a Thorne-type hoop theorem in the general case based on either the Liu-Yau or the Wang-Yau mass. en
dc.description.sponsorship National Natural Science Foundation of China (10771140, 10801036); Shanghai Education Development Foundation (05SG45); Science Foundation Ireland (07/RFP/PHYF148) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society en
dc.rights © 2010, American Physical Society en
dc.subject Quasi local energy en
dc.subject Trapped surfaces en
dc.subject general relativity en
dc.subject Vacuum spacetimes en
dc.subject Black hole en
dc.subject Matter en
dc.title Brown-York mass and the thorne hoop conjecture en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Niall Ó Murchadha, Physics, University College Cork, Cork, Ireland. +353-21-490-3000. Email: en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.wokid WOS:000274336600010
dc.contributor.funder Science Foundation Ireland
dc.contributor.funder Shanghai Education Development Foundation
dc.contributor.funder National Natural Science Foundation of China
dc.description.status Peer reviewed en
dc.identifier.journaltitle Physical Review Letters en
dc.internal.IRISemailaddress en
dc.identifier.articleid 41101

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