logo

korean english

게시판

Home > 게시판 > 세미나

입자이론연구실에서 서강대학교의 김원태 교수님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁드립니다.


○ 일시: 2018년 11월 21일(수) 오후 2:00 ~

○ 장소: Multimedia room, 2nd floor at Samsung Library 

○ 연사: Prof. Wontae Kim (Sogang University)

Title: Origin of Hawking Radiation

○ Abstract: 

The Unruh vacuum not admitting any outgoing flux at the horizon implies that the origin of the outgoing Hawking radiation is the atmosphere of a near-horizon quantum region without resort to the firewall; however, the existence of the firewall of superplanckian excitations at the horizon can be supported by the infinite Tolman temperature at the horizon. In an exactly soluble model, we explicitly show that the firewall necessarily emerges out of the Unruh vacuum so that the Tolman temperature in the Unruh vacuum is divergent in essence due to the infinitely blueshifted negative ingoing flux crossing the horizon rather than the outgoing flux. We also show that the outgoing Hawking radiation in the Unruh vacuum indeed originates from the atmosphere, not just at the horizon, which is of no relevance to the infinite blueshift. Consequently, the firewall from the infinite Tolman temperature and the Hawking radiation from the atmosphere turn out to be compatible, once we waive the claim that the  Hawking radiation in the Unruh vacuum originates from the infinitely blueshifted outgoing excitations at the horizon.  

번호 제목 날짜 조회 수
공지 2022학년도 1학기 콜로퀴움 일정 2022.01.10 27844
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 973019
600 <12/19> The BLG Theory in Light-Cone Superspace 2009.12.15 87150
599 <1/28> Steps towards a non-relativistic AdS/CFT 2010.01.25 100952
598 <2/1> The Surface Science of Adsorption on Crystalline Ferroelectric Polymer Surfaces 2010.01.25 87760
597 <2/16>Development of Micromegas detectors for neutron physics 2010.02.01 92797
596 <4/2> Supersymmetric vacua of mass-deformed M2-brane theory 2010.03.29 82974
595 <4/27> Organic-based Magnet and Organic-based spintronics : New science and Technologies 2010.04.22 92081
594 <5/26>BK21 물리연구단 석학초빙 특별 세미나 2010.05.17 126026
593 <6/18> A consistent truncation of D=11 supergravity to D=4, N=2 supergravity using wrapped M5-branes 2010.06.10 85066
592 <7/9> Strange Metallic Behavior in Anisotropic Background 2010.07.01 112122
591 <7/28> NQR/NMR study on a single crystal of LiFeAs 2010.07.20 97811
590 <7/21> Next generation cryogenic free 1.5T MgB2-magnet based MRI 2010.07.20 82010
589 <8/4> Remarks on the Scalar Graviton and Consistency of Horava Gravity 2010.07.28 93253
588 <8/17> AdS Black Hole Solutions in Extended New Massive Gravity 2010.08.16 91739
587 <9/1> 원자핵 자기공명(Nuclear Magnetic Resonance) 해설 - 원자선에서 영상까지 2010.08.30 92180
586 <10/15> How can population pyramids be used to explore the past? 2010.10.14 97969
585 <11/5> Discussion on recent observation of cosmological dipole of alpha 2010.11.04 118134
584 <11/26> Effective Holographic Theories for Condensed Matter Systems 2010.11.23 86107
583 <11/29> Kahler Inflation and WMAP7 data - a top down approach to Cosmology 2010.11.25 88253
582 <12/21> Special Seminar by Professor Ilya Vekhter 2010.11.30 115576
581 <1/24> Basics of Gravitational Perturbatiosn 2011.01.19 91070