Results 31 to 40 of about 208,623 (316)

Pseudo-spontaneous U(1) symmetry breaking in hydrodynamics and holography [PDF]

open access: yesJournal of High Energy Physics, 2021
We investigate the low-energy dynamics of systems with pseudo-spontaneously broken U(1) symmetry and Goldstone phase relaxation. We construct a hydrodynamic framework which is able to capture these, in principle independent, effects.
M. Ammon   +4 more
semanticscholar   +1 more source

Mach's Principle and Model for a Broken Symmetric Theory of Gravity [PDF]

open access: yes, 2002
We investigate spontaneous symmetry breaking in a conformally invariant gravitational model. In particular, we use a conformally invariant scalar tensor theory as the vacuum sector of a gravitational model to examine the idea that gravitational coupling ...
de Jonge, W.   +8 more
core   +11 more sources

Spontaneous Symmetry Breaking and Chiral Symmetry [PDF]

open access: yes, 2000
In this introductory lecture, some basic features of the spontaneous symmetry breaking are discussed. More specifically, $\sigma $-model, non-linear realization, and some examples of spontaneous symmetry breaking in the non-relativistic system are ...
Li, Ling-Fong
core   +2 more sources

Strong-to-Weak Spontaneous Symmetry Breaking in Mixed Quantum States [PDF]

open access: yesPRX Quantum
Symmetry in mixed quantum states can manifest in two distinct forms: , where each individual pure state in the quantum ensemble is symmetric with the same charge, and , which applies only to the entire ensemble.
Leonardo A. Lessa   +5 more
semanticscholar   +1 more source

Crystal time-reversal symmetry breaking and spontaneous Hall effect in collinear antiferromagnets [PDF]

open access: yesScience Advances, 2019
Identification of a previously overlooked spontaneous Hall effect mechanism creates opportunities in low-dissipation spintronics. Electrons, commonly moving along the applied electric field, acquire in certain magnets a dissipationless transverse ...
L. vSmejkal   +3 more
semanticscholar   +1 more source

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 strong symmetry breaking in open systems: Purification perspective [PDF]

open access: yesPhysical review B
We explore the landscape of the decoherence effect in mixed-state ensembles from a purification perspective. We analyze the spontaneous strong-to-weak symmetry breaking (SSSB) in mixed states triggered by local quantum channels by mapping this ...
Pablo Sala   +3 more
semanticscholar   +1 more source

On the relationship between gauge dependence and IR divergences in the ℏ-expansion of the effective potential

open access: yesJournal of High Energy Physics, 2019
Perturbative calculations of the effective potential evaluated at a broken minimum, V min, are plagued by difficulties. It is hard to get a finite and gauge invariant result for V min.
Andreas Ekstedt, Johan Löfgren
doaj   +1 more source

Anomaly inflow, accidental symmetry, and spontaneous symmetry breaking

open access: yesJournal of High Energy Physics, 2020
We consider the 6d (1,0) SCFT on a stack of N M5-branes probing a ℂ2/ℤ2 singularity. In particular, we study its compactifications to four dimensions on a smooth genus-g Riemann surface with non-trivial flavor flux, yielding a family of 4d CFTs.
Ibrahima Bah, Federico Bonetti
doaj   +1 more source

Spontaneous Symmetry Breaking through Mixing [PDF]

open access: yes, 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.
Bar-Shalom S.   +5 more
core   +3 more sources

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