Results 71 to 80 of about 2,110,870 (239)
Quantum-Gravity Phenomenology: Status and Prospects [PDF]
, 2002 Over the last few years part of the quantum-gravity community has adopted a more optimistic attitude toward the possibility of finding experimental contexts providing insight on non-classical properties of spacetime.
Ahluwalia D.V. +13 more
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Newtonian quantum gravity. [PDF]
Physics Essays, 2010 A Newtonian approach to quantum gravity is studied. At least for weak gravitational fields it should be a valid approximation. Such an approach could be used to point out problems and prospects inherent in a more exact theory of quantum gravity, yet to be discovered. Newtonian quantum gravity, e.g., shows promise for prohibiting black holes altogether (
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Casimir effect in a quantum space-time [PDF]
, 2014 We apply quantum field theory in quantum space-time techniques to study the Casimir effect for large spherical shells. As background we use the recently constructed exact quantum solution for spherically symmetric vacuum space-time in loop quantum ...
Gambini, Rodolfo +2 more
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Defects in Jackiw-Teitelboim quantum gravity [PDF]
Journal of High Energy Physics, 2019 We classify and study defects in 2d Jackiw-Teitelboim gravity. We show these are holographically described by a deformation of the Schwarzian theory where the reparametrization mode is integrated over different coadjoint orbits of the Virasoro group.
T. Mertens, G. Turiaci
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, 1991 14 pages. Contribution to the proceedings of the Trieste Summer School on High Energy Physics and Cosmology, July-Aug ...
Schoutens, K. +2 more
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Fermionic quantum gravity [PDF]
Nuclear Physics B, 2001 We study the statistical mechanics of random surfaces generated by NxN one-matrix integrals over anti-commuting variables. These Grassmann-valued matrix models are shown to be equivalent to NxN unitary versions of generalized Penner matrix models. We explicitly solve for the combinatorics of 't Hooft diagrams of the matrix integral and develop an ...
Paniak, L. D., Szabo, R. J.
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Universe, 2019 We use the method of the Lewis-Riesenfeld invariant to analyze the dynamical properties of the Mukhanov-Sasaki Hamiltonian and, following this approach, investigate whether we can obtain possible candidates for initial states in the context of inflation ...
Max Joseph Fahn +2 more
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Coherent States for Fractional Powers of the Harmonic Oscillator Hamiltonian
Universe, 2021 Inspired by special and general relativistic systems that can have Hamiltonians involving square roots or more general fractional powers, in this article, we address the question of how a suitable set of coherent states for such systems can be obtained ...
Kristina Giesel, Almut Vetter
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General relativity as an effective field theory: The leading quantum corrections [PDF]
, 1994 I describe the treatment of gravity as a quantum effective field theory. This allows a natural separation of the (known) low energy quantum effects from the (unknown) high energy contributions.
A. Pais +38 more
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International Journal of Modern Physics D, 2017 The search for a theory of quantum gravity is the most fundamental problem in all of theoretical physics, but there are as yet no experimental results at all to guide this endeavor. What seems to be needed is a pragmatic way to test if gravitation really occurs between quantum objects or not.
Hansson, Johan, Francois, Stephane
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