Results 11 to 20 of about 34,505 (198)
Exact uncertainty principle and quantization: implications for the gravitational field
Brazilian Journal of Physics, 2005 The quantization of the gravitational field is discussed within the exact uncertainty approach. The method may be described as a Hamilton-Jacobi quantization of gravity. It differs from previous approaches that take the classical Hamilton-Jacobi equation
Reginatto, Marcel
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Proper time approach to the quantization of the gravitational field
Physics Letters B, 1980 Abstract An approach to the quantization of the gravitational field and other generally covariant systems is described. The main result is a formal expression for the Feynman propagator of the field as a whole, which replaces the usual expression for the evolution operator in ordinary field theory.
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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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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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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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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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Fundamental length scale and the bending of light in a gravitational field
European Physical Journal C: Particles and Fields, 2022 The canonical approach to quantizing quantum gravity is understood to suffer from pathological non-renomalizability. Nevertheless in the context of effective field theory, a viable perturbative approach to calculating elementary processes is possible ...
Philip Tee, Nosratollah Jafari
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Lie algebroids and the geometry of off-shell BRST
Nuclear Physics B, 2021 It is well-known that principal bundles and associated bundles underlie the geometric structure of classical gauge field theories. In this paper, we explore the reformulation of gauge theories in terms of Lie algebroids and their associated bundles. This
Luca Ciambelli, Robert G. Leigh
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Gravitational path integral from the T 2 deformation
Journal of High Energy Physics, 2020 We study a T 2 deformation of large N conformal field theories, a higher dimensional generalization of the T T ¯ $$ T\overline{T} $$ deformation. The deformed partition function satisfies a flow equation of the diffusion type.
Alexandre Belin +2 more
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Quantization of Scalar Fields in Curved Background and Quantum Algebras [PDF]
, 2001 We show that a suitable deformation of the algebra $h_k(1)$ of the creation and annihilation operators for a complex scalar field, initially quantized in Minkowski space--time, induces the canonical quantization of the same field in a generic ...
Iorio, Alfredo +2 more
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