Results 171 to 180 of about 2,501 (221)

Ideal topological flat bands in chiral symmetric moiré systems from non-holomorphic functions. [PDF]

Nat Commun
Sarkar S, Wan X, Zhang Y, Sun K.
europepmc   +1 more source

Relativistic Correction from the Four-Body Nonadiabatic Exponential Wave Function. [PDF]

J Chem Theory Comput
Pachucki K, Komasa J.
europepmc   +1 more source

X2C Hamiltonian Models in ReSpect: Bridging Accuracy and Efficiency. [PDF]

J Phys Chem A
Repisky M, Komorovsky S, Konecny L, Kadek M, Moitra T, Joosten M, Misenkova D, Vikhamar-Sandberg R, Kaupp M, Ruud K, Malkina OL, Malkin VG.   +11 more
europepmc   +1 more source

Periodic Implementation of the Random Phase Approximation with Numerical Atomic Orbitals and Dual Reciprocal Space Grids. [PDF]

J Chem Theory Comput
Spadetto E, Philipsen PHT, Förster A, Visscher L.   +3 more
europepmc   +1 more source

Thermal behavior of the Klein Gordon oscillator in a dynamical noncommutative space. [PDF]

Sci Rep
Haouam I.
europepmc   +1 more source

On Quantum Relations. [PDF]

Entropy (Basel)
Dubois F, Toffano Z.
europepmc   +1 more source

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A graphical representation of the Dirac algebra

American Journal of Physics, 1996
The elements of the Dirac algebra are represented by sixteen 4×4 gamma matrices, each pair of which either commute or anticommute. This paper demonstrates a correspondence between the gamma matrices and the complete graph on six points, a correspondence that provides a visual picture of the structure of the Dirac algebra.
exaly   +2 more sources

Connecting in the Dirac Equation the Clifford Algebra of Lorentz Invariance with the Lie Algebra of SU(N) Gauge Symmetry

Symmetry, 2021
In this paper, we study possible mathematical connections of the Clifford algebra with the su(N)-Lie algebra, or in more physical terms the links between space-time symmetry (Lorentz invariance) and internal SU(N) gauge-symmetry for a massive spin one ...
E Marsch, Y Narita, Marsch Eckart
exaly   +2 more sources

On the algebra of symmetries of Laplace and Dirac operators [PDF]

Letters in Mathematical Physics, 2018
We consider a generalization of the classical Laplace operator, which includes the Laplace-Dunkl operator defined in terms of the differential-difference operators associated with finite reflection groups called Dunkl operators.
Hendrik de Bie, Roy Oste, J Van der Jeugt   +2 more
exaly   +2 more sources

Nonunitary representations of the SU(2) algebra in the Dirac equation with a Coulomb potential [PDF]

Journal of Mathematical Physics, 1999
A novel realization of the classical SU(2) algebra is introduced for the Dirac relativistic hydrogen atom defining a set of operators that allow the factorization of the problem.
A L Salas-Brito
exaly   +2 more sources