Results 61 to 70 of about 21,488 (217)
The information metric on the moduli space of instantons with global symmetries
Physics Letters B, 2016 In this note we revisit Hitchin's prescription [1] of the Fisher metric as a natural measure on the moduli space of instantons that encodes the space–time symmetries of a classical field theory. Motivated by the idea of the moduli space of supersymmetric
Emanuel Malek +2 more
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Entropy and Quantum Gravity [PDF]
Entropy, 2015 We give a review, in the style of an essay, of the author’s 1998 matter-gravity entanglement hypothesis which, unlike the standard approach to entropy based on coarse-graining, offers a definition for the entropy of a closed system as a real and objective quantity.
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Noncommutative quantum gravity [PDF]
Physics Letters B, 2000 The possible role of gravity in a noncommutative geometry is investigated. Due to the Moyal *-product of fields in noncommutative geometry, it is necessary to complexify the metric tensor of gravity. We first consider the possibility of a complex Hermitian, nonsymmetric $g_{ }$ and discuss the problems associated with such a theory.
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A DIALOG ON QUANTUM GRAVITY [PDF]
International Journal of Modern Physics D, 2003 The debate between loop quantum gravity and string theory is sometime lively, and it is hard to present an impartial view on the issue. Leaving any attempt to impartiality aside, I report here, instead, a conversation on this issue, overheard in the cafeteria of a Major American University.
Carlo Rovelli, Carlo Rovelli
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QUANTUM, GRAVITY AND GEOMETRY [PDF]
International Journal of Modern Physics A, 2000 Recently,1–3 it is shown that, the quantum effects of matter are well described by the conformal degree of freedom of the space–time metric. On the other hand, it is a well-known fact that according to Einstein's gravity theory, gravity and geometry are interconnected.
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, 2019 This article was originally called "Logical Basis of Natural Philosophy". 本文原名《自然哲学的逻辑基础》。
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Scaling in quantum gravity [PDF]
Nuclear Physics B, 1995 15 pages, Latex.
Ambjørn, Jan, Watabiki, Y.
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Cosmological effective Hamiltonian from full loop quantum gravity dynamics
Physics Letters B, 2018 The concept of effective dynamics has proven successful in LQC, a loop-inspired quantization of cosmological spacetimes. We apply the same idea of its derivation in LQC to the full theory, by computing the expectation value of the scalar constraint with ...
Andrea Dapor, Klaus Liegener
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Quantum gravity on the lattice [PDF]
General Relativity and Gravitation, 2009 63 pages, 12 ...
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Krylov complexity for Jacobi coherent states
Journal of High Energy PhysicsWe develop computational tools necessary to extend the application of Krylov complexity beyond the simple Hamiltonian systems considered thus far in the literature.
S. Shajidul Haque +3 more
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