Results 41 to 50 of about 23,787 (311)

Quantum W_3 Gravity

open access: yes, 1991
14 pages. Contribution to the proceedings of the Trieste Summer School on High Energy Physics and Cosmology, July-Aug ...
Schoutens, K.   +2 more
openaire   +4 more sources

Fermionic quantum gravity [PDF]

open access: yesNuclear 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.
openaire   +2 more sources

Dynamical Properties of the Mukhanov-Sasaki Hamiltonian in the Context of Adiabatic Vacua and the Lewis-Riesenfeld Invariant

open access: yesUniverse, 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
doaj   +1 more source

Testing quantum gravity [PDF]

open access: yesInternational 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
openaire   +3 more sources

Coherent States for Fractional Powers of the Harmonic Oscillator Hamiltonian

open access: yesUniverse, 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
doaj   +1 more source

Quantum-First Gravity [PDF]

open access: yesFoundations of Physics, 2019
This paper elaborates on an intrinsically quantum approach to gravity, which begins with a general framework for quantum mechanics and then seeks to identify additional mathematical structure on Hilbert space that is responsible for gravity and other phenomena.
openaire   +3 more sources

RESUMMED QUANTUM GRAVITY

open access: yesInternational Journal of Modern Physics D, 2007
We present the current status of the new approach to quantum general relativity based on the exact resummation of its perturbative series as this series was formulated by Feynman. We show that the resummed theory is UV-finite and we present some phenomenological applications as well.
openaire   +3 more sources

Dilaton quantum gravity

open access: yesPhysics Letters B, 2013
6 pages, 2 figures, version to appear in ...
Henz, T.   +3 more
openaire   +3 more sources

Nature‐Inspired Sustainable Cooling for Photovoltaics with Enhanced Temperature‐Salinity Dynamics

open access: yesAdvanced Functional Materials, EarlyView.
Addressing solar panel overheating, a nature‐inspired cooling system mimicking ocean currents is developed. A moisture‐absorbing solution layer uses sunlight, radiative cooling, and moisture processes to create temperature/salinity gradients, accelerating circulation. The prototype cools panels by up to 18.2 °C under sunlight, sustains cooling, rapidly
Fuxiang Li   +7 more
wiley   +1 more source

Toward the Unification of Physics and Number Theory [PDF]

open access: yesReports in Advances of Physical Sciences, 2019
This paper introduces the notion of simplex-integers and shows how, in contrast to digital numbers, they are the most powerful numerical symbols that implicitly express the information of an integer and its set theoretic substructure.
Klee Irwin
doaj   +1 more source

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