Results 51 to 60 of about 264,462 (334)
Replica Symmetry Breaking in Random Non-Hermitian Systems [PDF]
, 2022 Recent studies have revealed intriguing similarities between the contribution of wormholes to the gravitational path integral and the phenomenon of replica symmetry breaking observed in spin glasses and other disordered systems.
Antonio M. Garc'ia-Garc'ia +3 more
semanticscholar +1 more source
Dark Energy, QCD Axion, and Trans-Planckian-Inflaton Decay Constant
Universe, 2017 Pseudoscalars appear frequently in particle spectra. They can be light if they appear as pseudo-Goldstone bosons from some spontaneously broken global symmetries with the decay constant f.
Jihn E. Kim
doaj +1 more source
Gravity with Explicit Diffeomorphism Breaking [PDF]
Symmetry, 2021 Modified theories of gravity that explicitly break diffeomorphism invariance have been used for over a decade to explore open issues related to quantum gravity, dark energy, and dark matter.
R. Bluhm, Yumu Yang
semanticscholar +1 more source
Decoupling confinement and chiral-symmetry breaking: An explicit model [PDF]
Physical Review D, 1992 Using a covariant model of mesons developed previously, we obtain new numerical solutions for the light-quark sector, and show explicitly how the small mass of the pion emerges as a natural consequence of chiral-symmetry breaking. Then we generalize the model, and show how chiral-symmetry breaking and confinement could be realized through completely ...
, Gross, , Milana
openaire +2 more sources
Explicit Supersymmetry Breaking on Boundaries of Warped Extra Dimensions [PDF]
, 2003 Explicit supersymmetry breaking is studied in higher dimensional theories by having boundaries respect only a subgroup of the bulk symmetry. If the boundary symmetry is the maximal subgroup allowed by the boundary conditions imposed on the fields, then ...
Agashe +50 more
core +2 more sources
Spontaneous versus explicit breaking of a continuous global symmetry [PDF]
Physics Letters B, 1990 Abstract We consider theories with continuous global symmetries which are very slightly explicitly broken. We show that in the presence of a spontaneous violation of these symmetries, the corresponding pseudo Goldstone bosons may acquire masses much larger than the size of the explicit breaking. This result contradicts naive expectations.
LUSIGNOLI, Maurizio +2 more
openaire +2 more sources
Spontaneous chiral symmetry breaking in holographic soft wall models [PDF]
Physical Review D, 2021 We investigate non-linear extensions of the holographic soft wall model proposed by Karch, Katz, Son and Stephanov [1] including non-minimal couplings in the five-dimensional action.
Alfonso Ballon-Bayona +2 more
semanticscholar +1 more source
Helical symmetry breaking and quantum anomaly in massive Dirac fermions [PDF]
Physical review B, 2021 Helical symmetry of massive Dirac fermions is broken explicitly in the presence of electric and magnetic fields. Here we present two equations for the divergence of helical and axial vector currents following the Jackiw-Johnson approach to the anomaly of
Huan-Wen Wang, Bo Fu, S. Shen
semanticscholar +1 more source
Dynamical Manifestation of the Goldstone Phenomenon at 1-loop [PDF]
, 1999 We have calculated the damping rate $\Gamma (|{\bf k}|)$ for classical on-shell Goldstone modes of the O(2) symmetric scalar fields propagating in a thermal medium of the broken symmetry phase taking into account the effect of the explicit symmetry ...
A. Patkós +10 more
core +3 more sources
Effective multiquark interactions with explicit breaking of chiral symmetry [PDF]
Physical Review D, 2013 18 pages, 2 figures, 8 ...
A. A. Osipov, B. Hiller, A. H. Blin
openaire +2 more sources