Results 11 to 20 of about 1,088 (209)
Remarks on Gupta's Quantization of the Weak Gravitational Field
Canadian Journal of Physics, 1971 The two quantum theories developed by Gupta for the weak gravitational field are reviewed. A third formalism is given in which it is assumed that there are only ten field variables.
F. G. Peet
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Photon-Sphere Modes in Curved Optical Microcavities: A Black-Hole Analogue Laser. [PDF]
Adv Sci (Weinh)An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Xu C +9 more
europepmc +2 more sources
Topological quantization of gravitational fields [PDF]
Journal of Mathematical Physics, 2005 We introduce the method of topological quantization for gravitational fields in a systematic manner. First we show that any vacuum solution of Einstein’s equations can be represented in a principal fiber bundle with a connection that takes values in the Lie algebra of the Lorentz group.
Patino, L, Quevedo, Hernando
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Вестник Самарского государственного технического университета. Серия: Технические науки, 2020 The problems connected to propagation of a gravitational field are considered. The law of electromagnetic radiation frequency change in gravitational field is shown. The problem of a gravitational field quantization is investigated.
Andrey N. Volobuev +2 more
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Quantum correlations beyond entanglement in a classical-channel model of gravity
Scientific Reports, 2022 A direct quantization of the Newtonian interaction between two masses is known to establish entanglement, which if detected would witness the quantum nature of the gravitational field.
Federico Roccati +6 more
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Journal of High Energy Physics, 2023 We show that the strongly coupled field theory holographically dual to the Gubser-Rocha anti-de-Sitter Einstein-Maxwell-Dilaton theory describes not a single non-trivial AdS2 IR fixed point, but a one-parameter family.
Nicolas Chagnet +2 more
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Quantization of the Gravitational Field in the Expanding Universe [PDF]
Progress of Theoretical Physics, 1963 An attempt is made to quantize, in the linear approximation, the gravitational field in the expanding universe, from the standpoint of canonical formalism. By using a transformation function and decomposing suitably the field operator into positive and negative frequency parts, explicit forms of the four- dimensional commutation function and the ...
Nariai, H., Kimura, T.
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Gravitational Dynamics—A Novel Shift in the Hamiltonian Paradigm
Universe, 2021 It is well known that Einstein’s equations assume a simple polynomial form in the Hamiltonian framework based on a Yang-Mills phase space. We re-examine the gravitational dynamics in this framework and show that time evolution of the gravitational field ...
Abhay Ashtekar, Madhavan Varadarajan
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Frozen formalism and canonical quantization in (group) field theory [PDF]
, 2021 Canonical quantization of gravitational systems is obstructed by the problem of time. Due to diffeomorphism symmetry the Hamiltonian vanishes: dynamics with respect to a background time parameter appears “frozen.” Two strategies towards the quantization ...
Gielen, S.
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Study of the Inflationary Spectrum in the Presence of Quantum Gravity Corrections
Universe, 2023 After a brief review of the different approaches to predicting the possible quantum gravity corrections to quantum field theory, we discuss in some detail the formulation based on a Gaussian reference frame fixing.
Giulia Maniccia +2 more
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