Results 21 to 30 of about 204,709 (352)

A holographic perspective on phonons and pseudo-phonons [PDF]

open access: yesJournal of High Energy Physics, 2017
We analyze the concomitant spontaneous breaking of translation and conformal symmetries by introducing in a CFT a complex scalar operator that acquires a spatially dependent expectation value.
Andrea Amoretti   +4 more
doaj   +5 more sources

Excitable dynamics of Ras triggers spontaneous symmetry breaking of PIP3 signaling in motile cells.

open access: yesJ Cell Sci, 2019
Spontaneous cell movement is underpinned by an asymmetric distribution of signaling molecules including small G proteins and phosphoinositides on the cell membrane.
Fukushima S, Matsuoka S, Ueda M.
europepmc   +2 more sources

Spontaneous symmetry breaking and gravity [PDF]

open access: yesPhysical Review D, 2012
Gravity is usually considered to be irrelevant as far as the physics of elementary particles is concerned and, in particular, in the context of the spontaneous symmetry breaking (SSB) mechanism. We describe a version of the SSB mechanism in which gravity plays a direct role. We work in the context of diffeomorphism invariant gauge theories, which exist
Krasnov, Kirill
openaire   +5 more sources

The origin of a primordial genome through spontaneous symmetry breaking. [PDF]

open access: yesNat Commun, 2017
The heredity of a cell is provided by a small number of non-catalytic templates—the genome. How did genomes originate? Here, we demonstrate the possibility that genome-like molecules arise from symmetry breaking between complementary strands of self ...
Takeuchi N, Hogeweg P, Kaneko K.
europepmc   +2 more sources

Spontaneous symmetry breaking in an optomechanical cavity [PDF]

open access: yesPhysical Review A, 2020
A theoretical consideration of the so-called "membrane-in-the-middle" optomechanical cavity revealed that it undergoes a spontaneous symmetry breaking as a function of the transparency of the membrane. Such typical features of this phenomenon as a square-root development of the order parameter and divergency of the critical susceptibility were ...
Tagantsev, A. K.
openaire   +4 more sources

Spontaneous symmetry breaking through mixing [PDF]

open access: yesEurophysics Letters (EPL), 2006
We discuss a model, in which the negative mass square needed in the Higgs mechanism is generated by mixing with a heavy scalar. We have two scalar doublets in the standard model. Phenomenological properties of the heavy new scalar are discussed. The heavy scalar can be detected by the LHC.
Harald Fritzsch, Michael Spannowsky
openaire   +7 more sources

Spontaneous Breaking of Rotational Symmetry in Superconductors [PDF]

open access: greenPhysical Review Letters, 2002
We show that homogeneous superconductors with broken spin/isospin symmetry lower their energy via a transition to a novel superconducting state where the Fermi-surfaces are deformed to a quasi-ellipsoidal form at zero total momentum of Cooper pairs. In this state, the gain in the condensation energy of the pairs dominates over the loss in the kinetic ...
H. Müther, Armen Sedrakian
openalex   +5 more sources

Nonperturbative Spontaneous Symmetry Breaking

open access: greenFoundations of Physics Letters, 2002
essential changes in the ...
Vladimir Dzhunushaliev
openalex   +5 more sources

Halogen bond-modulated solid-state reordering and symmetry breaking of azahelicenes [PDF]

open access: yesNature Communications
Spontaneous symmetry breaking predominately occurs during the aggregation of discrete molecules in solution. Herein, we report a unique solid-state symmetry breaking process of dynamically chiral aza[4]helicenes that emerged in vacuum-driven ...
Juncong Liang   +4 more
doaj   +2 more sources

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