Results 51 to 60 of about 2,908,412 (339)
Earth-Moon Lagrangian points as a testbed for general relativity and effective field theories of gravity [PDF]
, 2015 We first analyse the restricted four-body problem consisting of the Earth, the Moon and the Sun as the primaries and a spacecraft as the planetoid. This scheme allows us to take into account the solar perturbation in the description of the motion of a ...
E. Battista +5 more
semanticscholar +1 more source
Anomaly and double copy in quantum self-dual Yang-Mills and gravity [PDF]
Journal of High Energy Physics, 2022 Recent works have explored how scattering amplitudes in quantum self-dual Yang-Mills theory and self-dual gravity can be interpreted as resulting from an anomaly, as first proposed by W. Bardeen.
R. Monteiro +2 more
semanticscholar +1 more source
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
doaj +1 more source
Towards understanding the ultraviolet behavior of quantum loops in infinite-derivative theories of gravity [PDF]
, 2014 In this paper we will consider quantum aspects of a non-local, infinite-derivative scalar field theory—a toy model depiction of a covariant infinite-derivative, non-local extension of Einstein’s general relativity which has previously been shown to be ...
Spyridon Talaganis +2 more
semanticscholar +1 more source
Classical double copy of spinning worldline quantum field theory [PDF]
Journal of High Energy Physics, 2022 We study the classical double copy of massive spinning objects in the worldline quantum field theories (WQFT) formalism. We couple the N $$ \mathcal{N} $$ = 1 supersymmetric model to a Yang-Mills background to describe the propagation of a spin-half ...
F. Comberiati, C. Shi
semanticscholar +1 more source
Journal of High Energy Physics, 2021 Primordial perturbations in our universe are believed to have a quantum origin, and can be described by the wavefunction of the universe (or equivalently, cosmological correlators). It follows that these observables must carry the imprint of the founding
Scott Melville, Enrico Pajer
doaj +1 more source
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
Ghost free mimetic massive gravity
Journal of High Energy Physics, 2018 The mass of the graviton can be generated using a Brout-Englert-Higgs mechanism with four scalar fields. We show that when one of these fields is costrained as in mimetic gravity, the massive gravity obtained is ghost free and consistent.
Ali H. Chamseddine, Viatcheslav Mukhanov
doaj +1 more source
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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Causality bounds on scalar-tensor EFTs
Journal of High Energy Physics, 2023 We compute the causality/positivity bounds on the Wilson coefficients of scalar-tensor effective field theories. Two-sided bounds are obtained by extracting IR information from UV physics via dispersion relations of scattering amplitudes, making use of ...
Dong-Yu Hong +2 more
doaj +1 more source