Results 41 to 50 of about 1,050,759 (299)
Wormholes in 2d Horǎva-Lifshitz quantum gravity
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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The concept of time in 2D quantum gravity [PDF]
Journal of High Energy Physics, 1998 14 pages, LaTeX, 2 ps ...
Ambjørn, Jan +3 more
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Gravitational perturbations as TT¯-deformations in 2D dilaton gravity systems [PDF]
, 2020 We consider gravitational perturbations of 2D dilaton gravity systems and show that these can be recast into -deformations (at least) under certain conditions, where T means the energy-momentum tensor of the matter field coupled to a dilaton gravity.
石井, 貴昭 +7 more
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The Schwarzian theory — origins
Journal of High Energy Physics, 2018 In this paper we further study the 1d Schwarzian theory, the universal low-energy limit of Sachdev-Ye-Kitaev models, using the link with 2d Liouville theory.
Thomas G. Mertens
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Journal of High Energy Physics, 2021 In this work, we extend the 2d topological gravity model of [1] to have as its bulk action any open/closed TQFT obeying Atiyah’s axioms. The holographic duals of these topological gravity models are ensembles of 1d topological theories with random ...
John Gardiner, Stathis Megas
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Self-gravity in thin protoplanetary discs
Astronomy & AstrophysicsContext. Gravitational instability (GI) is a leading theory proposed to explain both angular momentum transport and early planet formation in young, massive discs.
Rendon Restrepo S.
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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.
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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 ...
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Towards unified theory of 2d gravity [PDF]
Nuclear Physics B, 1992 We introduce a new 1-matrix model with arbitrary potential and the matrix-valued background field. Its partition function is a $τ$-function of KP-hierarchy, subjected to a kind of ${\cal L}_{-1}$-constraint. Moreover, partition function behaves smoothly in the limit of infinitely large matrices.
Kharchev, S. +4 more
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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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