Results 51 to 60 of about 2,681,911 (377)
Symmetry-based indicators of band topology in the 230 space groups [PDF]
Nature Communications, 2017 The interplay between symmetry and topology leads to a rich variety of electronic topological phases, protecting states such as the topological insulators and Dirac semimetals.
H. Po, A. Vishwanath, Haruki Watanabe
semanticscholar +1 more source
Fiber-Base Duality and Global Symmetry Enhancement [PDF]
, 2014 We show that the 5D Nekrasov partition functions enjoy the enhanced global symmetry of the UV fixed point. The fiber-base duality is responsible for the global symmetry enhancement.
Mitev, Vladimir +3 more
core +3 more sources
Journal of Applied Mathematics, 2013 We study a two-dimensional integrable generalization of the Kaup-Kupershmidt equation, which arises in various problems in mathematical physics. Exact solutions are obtained using the Lie symmetry method in conjunction with the extended tanh method and ...
Abdullahi Rashid Adem +1 more
doaj +1 more source
Abstract and Applied Analysis, 2014 We study two nonlinear partial differential equations, namely, the symmetric regularized long wave equation and the Klein-Gordon-Zakharov equations. The Lie symmetry approach along with the simplest equation and exp-function methods are used to obtain ...
Isaiah Elvis Mhlanga +1 more
doaj +1 more source
Results in Physics, 2020 In this work, we analytically examine a (3+1)-dimensional generalized Korteweg-de Vries-Zakharov-Kuznetsov equation (gKdV-ZKe). Solutions of this equation, including a non-topological soliton, are obtained by Lie symmetry reductions and direct ...
Chaudry Masood Khalique +1 more
doaj +1 more source
Spin-Flavour Symmetry and Contractions Towards Classical Space-Time Symmetry [PDF]
, 1996 A classification scheme of hadrons is proposed on the basis of the division algebra H of quaternions and an appropriate geometry. This scheme suggests strongly to understand flavour symmetry in another manner than from standard symmetry schemes.
Dahm, Rolf
core +2 more sources
(d-2)-Dimensional Edge States of Rotation Symmetry Protected Topological States. [PDF]
Physical Review Letters, 2017 We study fourfold rotation-invariant gapped topological systems with time-reversal symmetry in two and three dimensions (d=2, 3). We show that in both cases nontrivial topology is manifested by the presence of the (d-2)-dimensional edge states, existing ...
Zhida Song, Z. Fang, C. Fang
semanticscholar +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Vetoing all the Higgs imposters in $$H\rightarrow \ell ^-\ell ^+ Z$$ H → ℓ - ℓ + Z
European Physical Journal C: Particles and FieldsWe develop an effective and methodical algorithm for the construction of general covariant four-point $$H\ell \ell Z$$ H ℓ ℓ Z vertices, accommodating leptons $$\ell =e, \mu $$ ℓ = e , μ , and designed to handle a boson H of any integer spin, not merely ...
Seong Youl Choi +2 more
doaj +1 more source
Advances in Mathematical Physics, 2014 We analyze the (3+1)-dimensional Boussinesq equation, which has applications in fluid mechanics. We find exact solutions of the (3+1)-dimensional Boussinesq equation by utilizing the Lie symmetry method along with the simplest equation method.
Letlhogonolo Daddy Moleleki +1 more
doaj +1 more source