Results 11 to 20 of about 37,362 (307)
An approach to quantum 2D gravity
Physics Letters B, 2023 We consider a model of 2D gravity with the action quadratic in curvature and represent path integrals as integrals over the SL(2,R) invariant Gaussian functional measure.
Vladimir V. Belokurov +1 more
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Islands in asymptotically flat 2D gravity [PDF]
Journal of High Energy Physics, 2020 The large-N limit of asymptotically flat two-dimensional dilaton gravity coupled to N free matter fields provides a useful toy model for semiclassical black holes and the information paradox.
Thomas Hartman +2 more
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Wormholes in 2d Horǎva-Lifshitz quantum gravity [PDF]
Physics Letters B, 2021 We quantize the two-dimensional projectable Horǎva-Lifshitz gravity with a bi-local as well as space-like wormhole interaction. The resulting quantum Hamiltonian coincides with the one obtained through summing over all genus in the string field theory ...
Jan Ambjorn +3 more
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2D behavior of Gravity at Large Distances
, 2023 We show that the entropy or information flow of a gravitational system constrains the dependence of gravitational force on radial distance r which for very large r is equivalent to gravity in two dimensions. This explains the "origin" of dark matter and provides a natural solution to the problem of flat rotation curves of galaxies at very large ...
Naman Kumar
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Euclidian 2D Gravity with Torsion [PDF]
, 1993 Closing a gap in the literature on the subject, the local solutions of 2D-gravity with torsion are given for Euclidian signature. For the topology of a cylinder the system is quantized.
P. Schaller, Thomas Strobl
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Fermions in 2D Lorentzian Quantum Gravity [PDF]
, 2003 We implement Wilson fermions on 2D Lorentzian triangulation and determine the spectrum of the Dirac-Wilson operator. We compare it to the spectrum of the corresponding operator in the Euclidean background. We use fermionic particle to probe the fractal properties of Lorentzian gravity coupled to $c=1/2$ and $c=4$ matter.
L. Bogacz, Z. Burda, J. Jurkiewicz
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Damaging 2D quantum gravity [PDF]
Physics Letters B, 1994 6 pages, COLO-HEP-332;LPTHE-Orsay-93 ...
Baillie, C. F., Johnston, D. A.
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Quenching 2D quantum gravity [PDF]
Physics Letters B, 1994 We simulate the Ising model on a set of fixed random $ ^3$ graphs, which corresponds to a {\it quenched} coupling to 2D gravity rather than the annealed coupling that is usually considered. We investigate the critical exponents in such a quenched ensemble and compare them with measurements on dynamical $ ^3$ graphs, flat lattices and a single fixed $
Baillie, C. F. +2 more
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2d CDT is 2d Hořava–Lifshitz quantum gravity [PDF]
Physics Letters B, 2013 11 ...
Ambjørn, J. +3 more
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Bulk Correlation Functions in 2d Quantum Gravity [PDF]
Theoretical and Mathematical Physics, 2006 We compute bulk 3- and 4-point tachyon correlators in the 2d Liouville gravity with non-rational matter central charge c<1, following and comparing two approaches. The continuous CFT approach exploits the action on the tachyons of the ground ring generators deformed by Liouville and matter ``screening charges''.
Ivan Kostov, V. B. Petkova
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