TY - JOUR

T1 - Beyond the singularity of the 2D charged black hole

AU - Giveon, Amit

AU - Rabinovici, Eliezer

AU - Sever, Amit

PY - 2003/7/1

Y1 - 2003/7/1

N2 - Two dimensional charged black holes in string theory can be obtained as exact SL(2ℝ)×U(1)U(1) quotient CFTs. The geometry of the quotient is induced from that of the group, and in particular includes regions beyond the black hole singularities. Moreover, wavefunctions in such black holes are obtained from gauge invariant vertex operators in the SL(2,ℝ) CFT, hence their behavior beyond the singularity is determined. When the black hole is charged we find that the wavefunctions are smooth at the singularities, and known results of infinite blue shifts at the horizons persist. Unlike the uncharged case, scattering waves prepared beyond the singularity are not fully reflected; part of the wave is transmitted through the singularity. Hence, the physics outside the horizon of a charged black hole is sensitive to conditions set behind the past singularity.

AB - Two dimensional charged black holes in string theory can be obtained as exact SL(2ℝ)×U(1)U(1) quotient CFTs. The geometry of the quotient is induced from that of the group, and in particular includes regions beyond the black hole singularities. Moreover, wavefunctions in such black holes are obtained from gauge invariant vertex operators in the SL(2,ℝ) CFT, hence their behavior beyond the singularity is determined. When the black hole is charged we find that the wavefunctions are smooth at the singularities, and known results of infinite blue shifts at the horizons persist. Unlike the uncharged case, scattering waves prepared beyond the singularity are not fully reflected; part of the wave is transmitted through the singularity. Hence, the physics outside the horizon of a charged black hole is sensitive to conditions set behind the past singularity.

KW - AdS-CFT and dS-CFT Correspondence

KW - Black Holes in String Theory

KW - Conformal Field Models in String Theory

UR - http://www.scopus.com/inward/record.url?scp=23144460858&partnerID=8YFLogxK

U2 - 10.1088/1126-6708/2003/07/055

DO - 10.1088/1126-6708/2003/07/055

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AN - SCOPUS:23144460858

SN - 1029-8479

VL - 7

SP - 1305

EP - 1324

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

ER -