Results 1 to 10 of about 9,766,092 (371)
Static and slowly rotating neutron stars in scalar–tensor theory with self-interacting massive scalar field [PDF]
European Physical Journal C: Particles and Fields, 2018 Binary pulsar observations and gravitational wave detections seriously constrained scalar–tensor theories with massless scalar field allowing only small deviations from general relativity.
Kalin V. Staykov +3 more
doaj +6 more sources
Direct limits for scalar field dark matter from a gravitational-wave detector [PDF]
Nature, 2021 The nature of dark matter remains unknown to date, although several candidate particles are being considered in a dynamically changing research landscape1.
S M Vermeulen, H Grote, V Raymond
exaly +4 more sources
Scalar field inhomogeneous cosmologies [PDF]
Journal of Mathematical Physics, 1995 Some exact solutions for the Einstein field equations corresponding to inhomogeneous G2 cosmologies with an exponential-potential scalar field, which generalize solutions obtained previously, are considered. Several particular cases are studied and the properties related to generalized inflation and asymptotic behavior of the models are discussed.
A. Feinstein, J. Ibáñez, P. Labraga
core +6 more sources
Revisiting the Carrollian scalar field [PDF]
Physical Review D, 2022 We investigate the (conformally coupled) scalar field on a general Carrollian spacetime in arbitrary dimension. The analysis discloses electric and magnetic dynamics. For both, we provide the energy and the momenta of the field, accompanied by their conservation equations.
David Rivera-Betancour, Matthieu Vilatte
openaire +4 more sources
Duality family of scalar field [PDF]
Nuclear Physics B, 2021 We show that there exists a duality family of self-interacting massive scalar fields. The scalar fields in a duality family are related by a duality transformation.
Wen-Du Li, Wu-Sheng Dai
doaj +3 more sources
Spin-induced scalarization of Kerr black holes with a massive scalar field [PDF]
European Physical Journal C: Particles and Fields, 2020 In the present paper we study the onset of the spin-induced scalarization of a Kerr black hole in scalar-Gauss–Bonnet gravity with a massive scalar field.
Daniela D. Doneva +3 more
doaj +2 more sources
Brief Review on Scalar Field Dark Matter Models
Frontiers in Astronomy and Space Sciences, 2019 The existence of dark matter in the Universe has been solidly established in the last decades, after the arrival of accurate cosmological and astrophysical observations, and some consider it the most challenging problem in modern physics.
L Arturo Ureña-lópez
exaly +2 more sources
On concircular scalar fields [PDF]
Proceedings of the Japan Academy, 1965 Yoshihiro Tashiro
+7 more sources
Scalar field dark matter and the Higgs field [PDF]
Physics Letters B, 2016 We discuss the possibility that dark matter corresponds to an oscillating scalar field coupled to the Higgs boson. We argue that the initial field amplitude should generically be of the order of the Hubble parameter during inflation, as a result of its ...
O. Bertolami +2 more
doaj +4 more sources
Scalar field as a null dust [PDF]
European Physical Journal C: Particles and Fields, 2019 We show that a canonical, minimally coupled scalar field which is non-self interacting and massless is equivalent to a null dust fluid (whether it is a test or a gravitating field), in a spacetime region in which its gradient is null.
Valerio Faraoni, Jeremy Côté
doaj +4 more sources