摘要
The gravitational collapse of a massless scalar with a cosmological constant A is investigated. The mass field enclosed with a perfectly reflecting wall in a spacetime scaling for the gapped collapse MAH -- Mg oc （ec -- e） is confirmed and a new time scaling for the gapped collapse Tall -- Tg c（ （ec - e）〈 is found. For both the critical exponents, we find strong evidence to show that they are non-universal. Especially when A ~ O, we find that both of these two critical exponents depend on the combination AR2, where R is the radial position of the reflecting wall. We find an evolution of the critical exponent from 0.37 in the confined asymptotic dS case with AR2 = 1.75 to 0.68 in the confined asymptotic AdS case with AR2 -- -1.75, while the critical exponent （ varies from 0.10 to 0.26, which shows that the new critical behavior for the gapped collapse is essentially different from the Choptuik＇s case.
作者
Rong-Gen Cai
Li-Wei Ji
Run-Qiu Yang
蔡荣根;季力伟;杨润秋(CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences;Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University;School of Physical Sciences, University of Chinese Academy of Sciences;Quantum Universe Center, Korea Institute for Advanced Study)
基金
Supported in part by the National Natural Science Foundation of China under Grant Nos.11375247 and 11435006
a Key Project of CAS,under Grant No.QYZDJ-SSW-SYS006
