Results 51 to 60 of about 482,879 (316)
Discrete symmetries in dimer diagrams [PDF]
Journal of High Energy Physics, 2019 Abstract We apply dimer diagram techniques to uncover discrete global symmetries in the fields theories on D3-branes at singularities given by general orbifolds of general toric Calabi-Yau threefold singularities. The discrete symmetries are discrete Heisenberg groups, with two Z N generators
Eduardo García-Valdecasas +2 more
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On discrete Lorenz attractors of various types [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамикаThe purpose of this work is to develop the theory of discrete attractors of Lorenz type in the case of three-dimensional maps. In this case, special attention will be paid to standard discrete Lorenz attractors, as well as discrete Lorenz attractors with
Gonchenko, Aleksandr Sergeevich
doaj +1 more source
Condensed matter physics in time crystals
New Journal of Physics, 2020 Time crystals are physical systems whose time translation symmetry is spontaneously broken. Although the spontaneous breaking of continuous time-translation symmetry in static systems is proved impossible for the equilibrium state, the discrete time ...
Lingzhen Guo, Pengfei Liang
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Discrete symmetries in dynamo reversals [PDF]
Physics of Plasmas, 2017 Quantification of the velocity and magnetic field reversals in dynamo remains an interesting challenge. In this paper, using group-theoretic analysis, we classify the reversing and non-reversing Fourier modes during a dynamo reversal in a Cartesian box.
Riddhi Bandyopadhyay, Mahendra K. Verma
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Discrete Scale Relativity And SX Phoenicis Variable Stars
, 2009 Discrete Scale Relativity proposes a new symmetry principle called discrete cosmological self-similarity which relates each class of systems and phenomena on a given Scale of nature's discrete cosmological hierarchy to the equivalent class of analogue ...
Oldershaw, R. L.
core +1 more source
Spontaneous symmetry breaking in a quadratically-driven nonlinear photonic lattice [PDF]
, 2017 We investigate the occurrence of a phase transition, characterized by the spontaneous breaking of a discrete symmetry, in a driven-dissipative Bose-Hubbard lattice in presence of two-photon coherent driving. The driving term does not lift the original $U(
Savona, Vincenzo
core +2 more sources
Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications
FEBS Open Bio, EarlyView.This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley +1 more source
Radiative mixing of the one Higgs boson and emergent self-interacting dark matter
Physics Letters B, 2016 In all scalar extensions of the standard model of particle interactions, the one Higgs boson responsible for electroweak symmetry breaking always mixes with other neutral scalars at tree level unless a symmetry prevents it. An unexplored important option
Ernest Ma
doaj +1 more source
Dark discrete gauge symmetries [PDF]
Physical Review D, 2011 We investigate scenarios in which dark matter is stabilized by an abelian Z_N discrete gauge symmetry. Models are surveyed according to symmetries and matter content. Multi-component dark matter arises when N is not prime and Z_N contains one or more subgroups.
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang +10 more
wiley +1 more source