Results 31 to 40 of about 290,088 (288)
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
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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
On the Connection Between 2d Topological Gravity and the Reduced Hermitian Matrix Model [PDF]
, 1997 We discuss how concepts such as geodesic length and the volume of space-time can appear in 2d topological gravity. We then construct a detailed mapping between the reduced Hermitian matrix model and 2d topological gravity at genus zero.
Ambjorn, J., Harris, M. G., Weis, M.
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Lessons of quantum 2D dilaton gravity [PDF]
Physics Letters B, 1995 13 pages ...
de Alwis, S. P., MacIntire, D. A.
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The two-sphere partition function from timelike Liouville theory at three-loop order
Journal of High Energy Physics, 2022 While the Euclidean two-dimensional gravitational path integral is in general highly fluctuating, it admits a semiclassical two-sphere saddle if coupled to a matter CFT with large and positive central charge. In Weyl gauge this gravity theory is known as
Beatrix Mühlmann
doaj +1 more source
Relational observables in 2D quantum gravity [PDF]
Physical Review D, 2007 Local observation is an important problem both for the foundations of a quantum theory of gravity and for applications to quantum-cosmological problems such as eternal inflation. While gauge invariant local observables can't be defined, it has been argued that appropriate relational observables approximately reduce to local observables in certain ...
Gary, Michael, Giddings, Steven B.
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The two-sphere partition function in two-dimensional quantum gravity
Journal of High Energy Physics, 2021 We study the Euclidean path integral of two-dimensional quantum gravity with positive cosmological constant coupled to conformal matter with large and positive central charge.
Dionysios Anninos +2 more
doaj +1 more source
Effects of Gravity and Inlet/Outlet Location on a Two-Phase Cocurrent Imbibition in Porous Media
Journal of Applied Mathematics, 2011 We introduce 2D numerical investigations of the problem of gravity and inlet/outlet location effects of water-oil two-phase cocurrent imbibition in a porous medium. Three different cases of side-, top-, and bottom-inlet location are considered.
M. F. El-Amin, Shuyu Sun
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The price of curiosity: information recovery in de Sitter space
Journal of High Energy Physics, 2021 Recent works have revealed that quantum extremal islands can contribute to the fine-grained entropy of black hole radiation reproducing the unitary Page curve.
Lars Aalsma, Watse Sybesma
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Anomaly induced effective actions in even dimensions and reliability of s-wave approximation [PDF]
, 1999 The reduction of 4d matter-gravity theory to $S_2$, $H_2$ or $R_2$ leads to effective 2d dilatonic gravity with dilaton coupled matter. Spinors give the exceptional example of the theory which is conformally invariant in 4d as well as in 2d, after ...
Callan +6 more
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