Results 11 to 20 of about 381 (49)
Minimal Length and the Existence of Some Infinitesimal Quantities in Quantum Theory and Gravity [PDF]
In this work it is demonstrated that, provided a theory involves a minimal length, this theory must be free from such infinitesimal quantities as infinitely small variations in surface of the holographic screen, its volume, and entropy. The corresponding
Shalyt-Margolin, A. E.
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Gauge Interaction as Periodicity Modulation
The paper is devoted to a geometrical interpretation of gauge invariance in terms of the formalism of field theory in compact space-time dimensions [arXiv:0903.3680].
Arkani-Hamed +36 more
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Note on a new fundamental length scale $l$ instead of the Newtonian constant $G$
The newly proposed entropic gravity suggests gravity as an emergent force rather than a fundamental one. In this approach, the Newtonian constant $G$ does not play a fundamental role any more, and a new fundamental constant is required to replace its ...
A. A. Abdo +27 more
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Quantum Aspects of Black Hole Entropy [PDF]
This survey intends to cover recent approaches to black hole entropy which attempt to go beyond the standard semiclassical perspective. Quantum corrections to the semiclassical Bekenstein-Hawking area law for black hole entropy, obtained within the ...
A Ashtekar +27 more
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The geometerization of the renormalization group flow triggered by the $T\bar{T}$ deformation of large $c$ conformal field theories in two dimensions is presented. This entails the construction of the off shell Einstein-Hilbert action in three dimensions
Shyam, Vasudev
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Torsional Newton-Cartan Geometry and the Schr\"odinger Algebra [PDF]
We show that by gauging the Schr\"odinger algebra with critical exponent $z$ and imposing suitable curvature constraints, that make diffeomorphisms equivalent to time and space translations, one obtains a geometric structure known as (twistless ...
Bergshoeff, Eric A. +2 more
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Every system in physics is described in terms of interacting elementary particles characterized by modulated spacetime recurrences. These intrinsic periodicities, implicit in undulatory mechanics, imply that every free particle is a reference clock ...
Dolce, Donatello
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Hypersurface foliation approach to renormalization of ADM formulation of gravity [PDF]
We carry out ADM splitting in the Lagrangian formulation and establish a procedure in which (almost) all of the unphysical components of the metric are removed by using the 4D diffeomorphism and the measure-zero 3D symmetry.
Park, I. Y.
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Holographic multiverse and the measure problem
We discuss the duality, conjectured in earlier work, between the wave function of the multiverse and a 3D Euclidean theory on the future boundary of spacetime.
+23 more
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A conjecture on the origin of dark energy
The physical origin of holographic dark energy (HDE) is investigated. The main existing explanations, namely the UV/IR connection argument of Cohen et al, Thomas' bulk holography argument, and Ng's spacetime foam argument, are shown to be not ...
Allen S W +11 more
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