Buscar
Mostrando ítems 11-20 de 2627
Noether Symmetries and Critical Exponents
(Natl Acad Sci Ukraine, Inst MathKyiv 4Ucrânia, 2005)
Galilean symmetry in generalized Abelian Schrödinger?Higgs models with and without gauge field interaction
(World Scientific, 2015-11)
we consider a generalization of non-relativistic schrödinger–higgs lagrangian by introducing a nonstandard kinetic term. we show that this model is galilean invariant, we construct the conserved charges associated to the ...
Local classification of singular hexagonal 3-webs with holomorphic Chern connection form and infinitesimal symmetries
(2014)
Implicit ODE, cubic in derivative, generically has no infinitesimal symmetries even at regular points with distinct roots. Cartan showed that at regular points, ODEs with hexagonal 3-web of solutions have symmetry algebras ...
Approximate symmetries and gravity
(2020-01-01)
There are strong reasons to believe that global symmetries of quantum theories cannot be exact in the presence of gravity. While this has been argued at the qualitative level, establishing a quantitative statement is more ...
Pairing symmetries in cuprates: A Gorkov formalism
(Elsevier B.V., 2012-10-01)
Inspite of the direct evidence for Cooper pairing in the cuprates as in conventional superconductors, the pairing symmetry in the cuprate superconductors is still considered to be a controversial and a highly debatable ...
Perturbative breaking of the pseudospin symmetry in the relativistic harmonic oscillator
(World Scientific Publ Co Pte Ltd, 2004-08-01)
We show that relativistic mean fields theories with scalar S, and vector V, quadratic radial potentials can generate a harmonic oscillator with exact pseudospin symmetry and positive energy bound states when S = -V. The ...
On higher spin symmetries in de Sitter QFTs
(2016-03-01)
We consider the consequences of global higher-spin symmetries in quantum field theories on a fixed de Sitter background of spacetime dimension D ≥ 3. These symmetries enhance the symmetry group associated with the isometries ...
Random Lie-point symmetries
(Taylor & Francis LtdAbingdonInglaterra, 2014)
On the real matrix representation of pt-symmetric operators
(Czech Technical University, 2014-05)
We discuss the construction of real matrix representations of PT-symmetric operators. We show the limitation of a general recipe presented some time ago for non-Hermitian Hamiltonians with antiunitary symmetry and propose ...