Results 51 to 60 of about 275,111 (343)
Spontaneous scalarization with massive fields [PDF]
, 2016 We study the effect of a mass term in the spontaneous scalarization of neutron stars, for a wide range of scalar field parameters and neutron star equations of state.
Pretorius, F. +4 more
core +3 more sources
Spontaneous scalarization of a conducting sphere in Maxwell-scalar models [PDF]
, 2021 We study the spontaneous scalarization of a standard conducting charged sphere embedded in Maxwell-scalar models in flat spacetime, wherein the scalar field ϕ is nonminimally coupled to the Maxwell electrodynamics.
Radu, Eugen +4 more
core +1 more source
Multiscalar Gauss-Bonnet gravity: Scalarized black holes beyond spontaneous scalarization [PDF]
Physical Review D, 2022 Recently, a new nonlinear mechanism for black hole scalarization, different from the standard spontaneous scalarization, was demonstrated to exist for scalar Gauss-Bonnet theories in which no tachyonic instabilities can occur.
Kalin V. Staykov, D. Doneva
semanticscholar +1 more source
International Journal of Modern Physics B, 1994 We determine the excitations and S matrix of an integrable isotropic antiferromagnetic quantum spin chain of alternating spin 1/2 and spin 1. There are two types of gapless one-particle excitations: the usual spin 1/2 (“spinor”) kink, and a new spin 0 (“scalar”) kink.
de Vega, H. J. +2 more
openaire +2 more sources
MIXING OF SCALAR GLUEBALL AND SCALAR QUARKONIA [PDF]
High Energy Physics, 2007 The isosinglet scalar mesons $f_0(1710)$, $f_0(1500)$, $f_0(1370)$ and their mixing are studied. Two recent lattice results are employed as the starting point; one is the approximate SU(3) symmetry in the scalar sector above 1 GeV for the connected insertion part without $q\bar q$ annihilation, and the other is the scalar glueball mass at 1710 MeV in ...
openaire +2 more sources
, 2000 Random lsc (lower semicontinuous) functions can be indentified with a vector-valued random variable by means of an appropriate scalarization. It is shown that stationarity, ergodicity and independence properties are preserved by this scalarization.
Korf, Lisa A., Wets, Roger J.-B.
core +1 more source
Spontaneous Scalarization of Black Holes and Compact Stars from a Gauss-Bonnet Coupling. [PDF]
Physical Review Letters, 2017 We identify a class of scalar-tensor theories with coupling between the scalar and the Gauss-Bonnet invariant that exhibit spontaneous scalarization for both black holes and compact stars.
Hector O. Silva +4 more
semanticscholar +1 more source
Physical Review D, 2019 We conjecture that there exists a scalar bound state for every pair of fundamental fermions at a UV (`composite') scale, $Λ\gg v_{\text{weak}}$. This implies a large number of universally coupled, sub-critical Higgs doublets. All but the Standard Model Higgs are `dormant,' with large positive squared masses and each receives a small vacuum expectation ...
Hill, Christopher T. +3 more
openaire +2 more sources
Black hole scalarization with Gauss-Bonnet and Ricci scalar couplings [PDF]
, 2021 Spontaneous scalarization is a gravitational phenomenon in which deviations from general relativity arise once a certain threshold in curvature is exceeded, while being entirely absent below that threshold.
Ventagli, Giulia +3 more
core +1 more source
On the phase transition mechanism of spontaneous scalarization [PDF]
In certain modified gravity theories that include additional scalar degrees of freedom, compact objects such as black holes and neutron stars may undergo a process known as spontaneous scalarization, in which the scalar field is suddenly activated beyond
João V. M. Muniz +2 more
semanticscholar +1 more source