Results 21 to 30 of about 35,227 (263)
Symmetry, Symmetry Breaking and Topology [PDF]
Symmetry, 2010 The ground state of a system with symmetry can be described by a group G. This symmetry group G can be discrete or continuous. Thus for a crystal G is a finite group while for the vacuum state of a grand unified theory G is a continuous Lie group. The ground state symmetry described by G can change spontaneously from G to one of its subgroups H as the ...
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Probing the two-scale-factor universality hypothesis by exact rotation symmetry-breaking mechanism
European Physical Journal C: Particles and Fields, 2017 We probe the two-scale-factor universality hypothesis by evaluating, firstly explicitly and analytically at the one-loop order, the loop quantum corrections to the amplitude ratios for O(N) $$\lambda \phi ^{4}$$ λ ϕ 4 scalar field theories with rotation ...
J. F. S. Neto +3 more
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Symmetry Breaking in Tournaments [PDF]
Electronic Notes in Discrete Mathematics, 2011 We provide upper bounds for the determining number and the metric dimension of tournaments. A set of vertices $S \subseteq V(T)$ is a determining set for a tournament $T$ if every nontrivial automorphism of $T$ moves at least one vertex of $S$, while $S$ is a resolving set for $T$ if every two distinct vertices in $T$ have different distances to some ...
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Semaphorin Breaks Symmetry [PDF]
Neuron, 2011 Axon-dendrite polarity is likely instructed by extrinsic cues in the developing nervous system, though the mechanisms governing this process remain to be fully elucidated. In this issue of Neuron, Shelly et al. show that the axon guidance cue Semaphorin 3A can promote dendrite growth by inhibiting axon specification.
Howell, Audrey S., Shen, Kang
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Gauged Peccei-Quinn symmetry — A case of simultaneous breaking of SUSY and PQ symmetry
Journal of High Energy Physics, 2018 Recently, a simple prescription to embed the global Peccei-Quinn (PQ) symmetry into a gauged U(1) symmetry has been proposed. There, explicit breaking of the global PQ symmetry expected in quantum gravity are highly suppressed due to the gauged PQ ...
Hajime Fukuda +3 more
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Probing the electroweak symmetry breaking history with gravitational waves
Journal of High Energy Physics, 2023 We perform three dimensional lattice simulation of the electroweak symmetry breaking process through two-step vacuum-like phase transitions with one step being first-order. Our results show that: 1) when the electroweak symmetry breaking is driven by the
Zizhuo Zhao +3 more
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Entanglement-enabled symmetry-breaking orders
SciPost Physics CoreA spontaneous symmetry-breaking order is conventionally described by a tensor-product wavefunction of some few-body clusters; some standard examples include the simplest ferromagnets and valence bond solids. We discuss a type of symmetry-breaking orders,
Cheng-Ju Lin, Liujun Zou
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Asymmetric balance in symmetry breaking
Physical Review Research, 2020 Spontaneous symmetry breaking is central to our understanding of physics and explains many natural phenomena, from cosmic scales to subatomic particles.
Bruno Garbin +5 more
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Tunneling potentials for the tunneling action: gauge invariance
Journal of High Energy Physics, 2022 We formulate a procedure to obtain a gauge-invariant tunneling rate at zero temperature using the recently developed tunneling potential approach. This procedure relies on a consistent power counting in gauge coupling and a derivative expansion.
Suntharan Arunasalam +1 more
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New Journal of Physics, 2019 We theoretically perform a comprehensive analysis about the influences of the space-inversion symmetry breaking in graphene-based materials on the Andreev reflections (AR) in the normal-metal/superconductor (NS) and NSN heterojunctions.
Xue-Si Li +2 more
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