Results 21 to 30 of about 37,362 (307)
2D gravity and random matrices [PDF]
Physics Reports, 1995 190 pages (harvmac l mode), 400kb (don't even dream of requesting hardcopy)
Di Francesco, P. +2 more
openaire +2 more sources
2D GRAVITY AND MATRIX MODELS I: 2D GRAVITY [PDF]
International Journal of Modern Physics A, 1994 Some approaches to 2D gravity which have been developed in the last few years are reviewed. They are physical (Liouville) gravity, topological theories and matrix models. Special attention is paid to matrix models and their interrelations with different approaches. Almost all technical details are omitted, but examples are presented.
openaire +3 more sources
Physics Letters B, 1990 Abstract We consider a formulation of nonperturbative two-dimensional quantum gravity coupled to a single bosonic field (d = 1 matter). Starting from a matrix realization of the discretized model, we express the continuum theory as a double scaling limit in which the 2D cosmological constant g tends towards a critical value gc, and the string ...
P. GINSPARG, J. ZINN-JUSTIN
openaire +1 more source
Symplectic structure of 2D dilaton gravity [PDF]
Physics Letters B, 1993 12 pgs, Imperial TP/92-93/37, La-Tex ...
Mikovic, A., Navarro, M.
openaire +2 more sources
Gravity as an ensemble and the moment problem
Journal of High Energy Physics, 2021 If a bulk gravitational path integral can be identified with an average of partition functions over an ensemble of boundary quantum theories, then a corresponding moment problem can be solved. We review existence and uniqueness criteria for the Stieltjes
Oliver Janssen +2 more
doaj +1 more source
CANONICAL APPROACH TO 2D INDUCED GRAVITY [PDF]
Modern Physics Letters A, 2001 Using canonical method the Liouville theory has been obtained as a gravitational Wess–Zumino action of the Polyakov string. From this approach it is clear that the form of the Liouville action is the consequence of the bosonic representation of the Virasoro algebra, and that the coefficient in front of the action is proportional to the central charge ...
Popovic, D. S., Sazdovic, B.
openaire +2 more sources
Softening transitions with quenched 2D gravity [PDF]
Nuclear Physics B - Proceedings Supplements, 1997 We perform extensive Monte Carlo simulations of the 10-state Potts model on quenched two-dimensional $ ^3$ gravity graphs to study the effect of quenched connectivity disorder on the phase transition, which is strongly first order on regular lattices.
Baillie, C. F. +2 more
openaire +2 more sources
Journal of High Energy Physics, 2018 The 2D N $$ \mathcal{N} $$ = (2, 2)∗ supersymmetric Yang-Mills theory can be obtained from the 2D N $$ \mathcal{N} $$ = (4, 4) theory with a twisted mass deformation.
Jun Nian
doaj +1 more source
Effective gravitational action for 2D massive fermions
Journal of High Energy Physics, 2021 We work out the effective gravitational action for 2D massive Euclidean fermions in a small mass expansion. Besides the leading Liouville action, the order m 2 gravitational action contains a piece characteristic of the Mabuchi action, much as for 2D ...
Adel Bilal +2 more
doaj +1 more source
EXTENSIONS OF 2D GRAVITY [PDF]
International Journal of Modern Physics D, 1994 After reviewing some aspects of gravity in two dimensions, I show that non-trivial embeddings of sl(2) in a semi-simple (super) Lie algebra give rise to a very large class of extensions of 2D gravity. The induced action is constructed as a gauged WZW model and an exact expression for the effective action is given.
openaire +3 more sources