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Quantum gravity and spin systems

Abstract

A new method for nonperturbative investigations of quantum gravity is presented in which the simplicial path integral is approximated by the partition function of a spin system. This facilitates analytical and numerical computations considerably. In two dimensions equivalence to an Ising model with ternary couplings is recovered. First simulations in four dimensions indicate strong similarities to the phase structure of original Regge theory. ((orig.)).
Authors:
Beirl, W; [1]  Homolka, P; [1]  Krishnan, B; [1]  Markum, H; [1]  Riedler, J [1] 
  1. Technische Univ., Vienna (Austria). Inst. fuer Kernphysik
Publication Date:
Apr 01, 1995
Product Type:
Journal Article
Report Number:
CONF-9409269-
Reference Number:
SCA: 662110; PA: AIX-26:064378; EDB-95:132444; SN: 95001458393
Resource Relation:
Journal Name: Nuclear Physics B, Proceedings Supplements; Journal Volume: 42; Conference: Lattice `94, Bielefeld (Germany), 25 Sep - 1 Oct 1994; Other Information: PBD: Apr 1995
Subject:
66 PHYSICS; LATTICE FIELD THEORY; ISING MODEL; QUANTUM GRAVITY; COMPUTERIZED SIMULATION; COUPLING; EXPECTATION VALUE; FEYNMAN PATH INTEGRAL; FOUR-DIMENSIONAL CALCULATIONS; PARTITION FUNCTIONS; PHASE DIAGRAMS; REGGE CALCULUS; SPIN ORIENTATION; TWO-DIMENSIONAL CALCULATIONS
OSTI ID:
101089
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: NPBSE7; ISSN 0920-5632; TRN: NL95FF422064378
Submitting Site:
NLN
Size:
pp. 710-712
Announcement Date:
Oct 05, 1995

Citation Formats

Beirl, W, Homolka, P, Krishnan, B, Markum, H, and Riedler, J. Quantum gravity and spin systems. Netherlands: N. p., 1995. Web. doi:10.1016/0920-5632(95)00358-G.
Beirl, W, Homolka, P, Krishnan, B, Markum, H, & Riedler, J. Quantum gravity and spin systems. Netherlands. doi:10.1016/0920-5632(95)00358-G.
Beirl, W, Homolka, P, Krishnan, B, Markum, H, and Riedler, J. 1995. "Quantum gravity and spin systems." Netherlands. doi:10.1016/0920-5632(95)00358-G. https://www.osti.gov/servlets/purl/10.1016/0920-5632(95)00358-G.
@misc{etde_101089,
title = {Quantum gravity and spin systems}
author = {Beirl, W, Homolka, P, Krishnan, B, Markum, H, and Riedler, J}
abstractNote = {A new method for nonperturbative investigations of quantum gravity is presented in which the simplicial path integral is approximated by the partition function of a spin system. This facilitates analytical and numerical computations considerably. In two dimensions equivalence to an Ising model with ternary couplings is recovered. First simulations in four dimensions indicate strong similarities to the phase structure of original Regge theory. ((orig.)).}
doi = {10.1016/0920-5632(95)00358-G}
journal = {Nuclear Physics B, Proceedings Supplements}
volume = {42}
journal type = {AC}
place = {Netherlands}
year = {1995}
month = {Apr}
}