Results 61 to 70 of about 186,264 (366)
Spin effects in the effective field theory approach to Post-Minkowskian conservative dynamics
Journal of High Energy Physics, 2021 Building upon the worldline effective field theory (EFT) formalism for spinning bodies developed for the Post-Newtonian regime, we generalize the EFT approach to Post-Minkowskian (PM) dynamics to include rotational degrees of freedom in a manifestly ...
Zhengwen Liu +2 more
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Classical Symmetries of Some Two-Dimensional Models Coupled to Gravity [PDF]
, 1995 This paper is a sequel to one in which we examined the affine symmetry algebras of arbitrary classical principal chiral models and symmetric space models in two dimensions. It examines the extension of those results in the presence of gravity.
Bakas +27 more
core +2 more sources
Journal of High Energy Physics, 2020 We study a host of spacetimes where the Weyl curvature may be expressed algebraically in terms of an Abelian field strength. These include Type D spacetimes in four and higher dimensions which obey a simple quadratic relation between the field strength ...
Rashid Alawadhi +2 more
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Classical limit of large N gauge theories with conformal symmetry [PDF]
Journal of High Energy Physics, 2019 In this paper we study classical limit of conformal field theories realized by large N gauge theories using the generalized coherent states. For generic large N gauge theories with conformal symmetry, we show that the classical limit of t hem is ...
S. Terashima
semanticscholar +1 more source
Gravitational SL(2, ℝ) algebra on the light cone
Journal of High Energy Physics, 2021 In a region with a boundary, the gravitational phase space consists of radiative modes in the interior and edge modes at the boundary. Such edge modes are necessary to explain how the region couples to its environment.
Wolfgang Wieland
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Quantum equivalence of $f(R)$ gravity and scalar-tensor theories [PDF]
, 2017 We investigate whether the classical equivalence of f(R) gravity and its formulation as scalar-tensor theory still holds at the quantum level. We explicitly compare the corresponding one-loop divergences and find that the equivalence is broken by off ...
M. Ruf, C. Steinwachs
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T-duality and high-derivative gravity theories: the BTZ black hole/string paradigm [PDF]
Journal of High Energy Physics, 2018 A bstractWe show that the temperature and entropy of a BTZ black hole are invariant under T-duality to next to leading order in M⋆− 2, M⋆ being the scale suppressing higher-curvature/derivative terms in the Lagrangian.
J. Edelstein +3 more
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Lagrangian constraint analysis of first-order classical field theories with an application to gravity [PDF]
Physical Review D, 2020 We present a method that is optimized to explicitly obtain all the constraints and thereby count the propagating degrees of freedom in (almost all) manifestly first order classical field theories. Our proposal uses as its only inputs a Lagrangian density and the identification of the a priori independent field variables it depends on.
Verónica Errasti Díez +3 more
openaire +4 more sources
4D spin-2 fields from 5D Chern-Simons theory
Journal of High Energy Physics, 2018 We consider a 5-dimensional Chern-Simons gauge theory for the isometry group of Anti-de-Sitter spacetime, AdS4+1 ≃ SO(4, 2), and invoke different dimensional reduction schemes in order to relate it to 4-dimensional spin-2 theories.
N. L. González Albornoz +3 more
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The cosmological constant as a boundary term
Journal of High Energy Physics, 2022 We compare the path integral for transition functions in unimodular gravity and in general relativity. In unimodular gravity the cosmological constant is a property of states that are specified at the boundaries whereas in general relativity the ...
Wilfried Buchmüller, Norbert Dragon
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