TY - JOUR
T1 - From big bang to big crunch and beyond
AU - Elitzur, Shmuel
AU - Giveon, Amit
AU - Kutasov, David
AU - Rabinovici, Eliezer
PY - 2002/6/1
Y1 - 2002/6/1
N2 - We study a quotient Conformal Field Theory, which describes a 3 + 1 dimensional cosmological spacetime. Part of this spacetime is the Nappi-Witten (NW) universe, which starts at a "big bang" singularity, expands and then contracts to a "big crunch" singularity at a finite time. The gauged WZW model contains a number of copies of the NW spacetime, with each copy connected to the preceeding one and to the next one at the respective big bang/big crunch singularities. The sequence of NW spacetimes is further connected at the singularities to a series of non-compact static regions with closed timelike curves. These regions contain boundaries, on which the observables of the theory live. This suggests a holographic interpretation of the physics.
AB - We study a quotient Conformal Field Theory, which describes a 3 + 1 dimensional cosmological spacetime. Part of this spacetime is the Nappi-Witten (NW) universe, which starts at a "big bang" singularity, expands and then contracts to a "big crunch" singularity at a finite time. The gauged WZW model contains a number of copies of the NW spacetime, with each copy connected to the preceeding one and to the next one at the respective big bang/big crunch singularities. The sequence of NW spacetimes is further connected at the singularities to a series of non-compact static regions with closed timelike curves. These regions contain boundaries, on which the observables of the theory live. This suggests a holographic interpretation of the physics.
KW - AdS-CFT and dS-CFT Correspondence
KW - Conformal Field Models in String Theory
UR - http://www.scopus.com/inward/record.url?scp=23044514589&partnerID=8YFLogxK
U2 - 10.1088/1126-6708/2002/06/017
DO - 10.1088/1126-6708/2002/06/017
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AN - SCOPUS:23044514589
SN - 1029-8479
VL - 6
SP - 313
EP - 343
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 6
ER -