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SUMMARY:Thermodynamical study on universal horizons in higher $D$-dimensio
 nal spacetime and aether waves
DTSTART;VALUE=DATE-TIME:20190630T083000Z
DTEND;VALUE=DATE-TIME:20190630T090000Z
DTSTAMP;VALUE=DATE-TIME:20260517T092449Z
UID:indico-contribution-23@indico.itp.ac.cn
DESCRIPTION:Speakers: 丁 持坤 (湖南人文科技学院)\nWe investigat
 e behaviors of the $D$-dimensional gravity coupled to a dynamical unit tim
 elike vector\, the aether\, present two kinds of exact charged solutions a
 nd study the linearized wave spectrum of this theory. There is an universa
 l horizon behind the Killing horizon in these aether black holes. We find 
 that in the uncharged case\, one can construct a Smarr formula and the (sl
 ightly modified) first law of black hole mechanics at the universal horizo
 ns for both kinds of black holes. An entropy can be associated with the un
 iversal horizon and a temperature can be defined there. For the second kin
 d aether black hole and for the first kind one in the extremal higher dime
 nsions\, the charge should be severely constrained that $\\bar Q\\ll \\bar
  r_0/2$. In this way\, one can still construct such first law. For aether 
 wave\, our results show that the spin-1 and spin-2 modes are the same as t
 hose in 4-dimensional spacetime\, and only the spin-0 one is different and
  dependant on the dimension number $n$.\n\nhttps://indico.itp.ac.cn/event/
 1/contributions/23/
LOCATION:新疆乌鲁木齐金谷大酒店 三楼会议室
URL:https://indico.itp.ac.cn/event/1/contributions/23/
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