Results 11 to 20 of about 3,197,005 (354)

Optical Dirac equation

open access: yesNew Journal of Physics, 2014
We write the charge-free Maxwell equations in a form analogous to that of the Dirac equation for a free electron. This allows us to apply to light some of the ideas developed for the relativistic theory of the electron.
Stephen M Barnett
doaj   +2 more sources

Error estimates of numerical methods for the nonlinear Dirac equation in the nonrelativistic limit regime [PDF]

open access: greenScience China Mathematics, 2016
We present several numerical methods and establish their error estimates for the discretization of the nonlinear Dirac equation (NLDE) in the nonrelativistic limit regime, involving a small dimensionless parameter 0 < ε ≤ 1 which is inversely ...
WeiZhu Bao   +3 more
openalex   +3 more sources

The topological Dirac equation of networks and simplicial complexes [PDF]

open access: yesarXiv.org, 2021
We define the topological Dirac equation describing the evolution of a topological wave function on networks or on simplicial complexes. On networks, the topological wave function describes the dynamics of topological signals or cochains, i.e.
G. Bianconi
semanticscholar   +1 more source

Dirac equation perspective on higher-order topological insulators [PDF]

open access: yesJournal of Applied Physics, 2020
In this Tutorial, we pedagogically review recent developments in the field of non-interacting fermionic phases of matter, focusing on the low-energy description of higher-order topological insulators in terms of the Dirac equation.
F. Schindler
semanticscholar   +1 more source

Non-Commutative Integration of the Dirac Equation in Homogeneous Spaces [PDF]

open access: yesSymmetry, 2020
We develop a non-commutative integration method for the Dirac equation in homogeneous spaces. The Dirac equation with an invariant metric is shown to be equivalent to a system of equations on a Lie group of transformations of a homogeneous space.
A. Breev, A. Shapovalov
semanticscholar   +1 more source

The Dirac equation in (1 + 2) -dimensional Gürses space-time backgrounds [PDF]

open access: yesThe European Physical Journal Plus, 2019
.In this article, we investigate the relativistic quantum dynamics of spin- $ \frac{1}{2}$12 particles in (1 + 2 -dimensional Gürses space-time backgrounds, and analyze the effects on the eigenvalues.
Faizuddin Ahmed
semanticscholar   +1 more source

The Dirac Equation in Curved Spacetime [PDF]

open access: yesSpringerBriefs in Physics, 2018
In these informal lecture notes we outline different approaches used in doing calculations involving the Dirac equation in curved spacetime. We have tried to clarify the subject by carefully pointing out the various conventions used and by including ...
P. Collas, D. Klein
semanticscholar   +1 more source

The Dirac equation as a quantum walk over the honeycomb and triangular lattices [PDF]

open access: yesPhysical Review A, 2018
A discrete-time quantum walk (QW) is essentially an operator driving the evolution of a single particle on the lattice, through local unitaries. Some QWs admit a continuum limit, leading to well-known physics partial differential equations, such as the ...
P. Arrighi   +3 more
semanticscholar   +1 more source

Topology and the optical Dirac equation [PDF]

open access: yesPhysical Review A, 2018
Through understanding Maxwell's equations as an effective Dirac equation (the `optical Dirac equation'), we re-examine the relationship between electromagnetic interface states and topology.
S. Horsley
semanticscholar   +1 more source

Dirac Equation in (1+1)-Dimensional Curved Spacetime and the Multiphoton Quantum Rabi Model. [PDF]

open access: yesPhysical Review Letters, 2017
We introduce an exact mapping between the Dirac equation in (1+1)-dimensional curved spacetime (DCS) and a multiphoton quantum Rabi model (QRM). A background of a (1+1)-dimensional black hole requires a QRM with one- and two-photon terms that can be ...
J. S. Pedernales   +8 more
semanticscholar   +1 more source

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