Results 61 to 70 of about 204,709 (352)
Spontaneous breaking of non-relativistic scale symmetry
Journal of High Energy Physics, 2017 We analyze the mechanism of spontaneous symmetry breaking of scale invariance in Galilean invariant field theories. We show that the existence of a dynamic gapless dilaton mode depends on whether the U(1) particle number or the Galilean boost symmetry ...
Igal Arav, Itamar Hason, Yaron Oz
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Mach's Principle and Model for a Broken Symmetric Theory of Gravity [PDF]
, 2003 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 ...
A. Zee +12 more
core +11 more sources
Non-Hermitian non-Abelian topological insulators with PT symmetry
Physical Review Research, 2021 We study a non-Hermitian non-Abelian topological insulator preserving PT symmetry, where the non-Hermitian term represents nonreciprocal hoppings. As it increases, a spontaneous PT symmetry breaking transition occurs in the perfect-flat band model from a
Motohiko Ezawa
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Spontaneous symmetry breaking and Nambu–Goldstone modes in open classical and quantum systems [PDF]
Progress of Theoretical and Experimental Physics, 2019 We discuss spontaneous symmetry breaking of open classical and quantum systems. When a continuous symmetry is spontaneously broken in an open system, a gapless excitation mode appears corresponding to the Nambu–Goldstone mode.
Y. Hidaka, Y. Minami
semanticscholar +1 more source
Spontaneous symmetry breaking in quantum mechanics [PDF]
American Journal of Physics, 2007 We present a mathematically simple procedure to explain spontaneous symmetry breaking in quantum systems. The procedure is applicable to a wide range of models and can be easily used to explain the existence of a symmetry broken state in crystals, antiferromagnets, and even superconductors.
van Wezel, Jasper, van den Brink, Jeroen
openaire +6 more sources
Time crystal behavior of excited eigenstates
, 2017 In analogy to spontaneous breaking of continuous space translation symmetry in the process of space crystal formation, it was proposed that spontaneous breaking of continuous time translation symmetry could lead to time crystal formation. In other words,
Sacha, Krzysztof +2 more
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Spontaneous scale symmetry breaking at high temperature
Journal of High Energy Physics, 2023 We consider a scale symmetric extension of the Standard Model Higgs scalar sector. The new sector, dilaton, is responsible for the generation of mass scales and may have geometric origin in the Weyl gravity R ~ 2 $$ {\overset{\sim }{R}}^2 $$ term.
Z. Lalak, P. Michalak
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Spontaneous Symmetry Breaking in Diffraction
Physical Review LettersMain text: 12 pages plus 5 figures.
J. Abad-Arredondo +6 more
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Spontaneous symmetry breaking and trapping of temporal Kerr cavity solitons by pulsed or amplitude-modulated driving fields [PDF]
, 2018 We report on a systematic study of temporal Kerr cavity soliton dynamics in the presence of pulsed or amplitude-modulated driving fields. In stark contrast to the more extensively studied case of phase modulations, we find that Kerr cavity solitons are ...
I. Hendry +8 more
semanticscholar +1 more source
Supersymmetry Breaking, R-Symmetry Breaking and Metastable Vacua
, 2007 Models of spontaneous supersymmetry breaking generically have an R-symmetry, which is problematic for obtaining gaugino masses and avoiding light R-axions.
A. Amariti +7 more
core +2 more sources