Results 31 to 40 of about 1,551 (72)

Irreducible many-body correlations in topologically ordered systems

New Journal of Physics, 2016
Topologically ordered systems exhibit large-scale correlation in their ground states, which may be characterized by quantities such as topological entanglement entropy.
Yang Liu, Bei Zeng, D L Zhou
doaj   +1 more source

Comment on `Solution of the Dirac equation for the Woods-Saxon potential with spin and pseudospin symmetry' [J. Y. Guo and Z-Q. Sheng, Phys. Lett. A 338 (2005) 90]

, 2005
Out of the four bound-state solutions presented in loc. cit., only one (viz., the spin-symmetric one, in the low-mass regime) is shown compatible with the physical boundary conditions.
Flügge, Guo, H. Bíla, M. Znojil, V. Jakubský   +4 more
core   +1 more source

Optical Dirac equation

New 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   +1 more source

Whirling Waves and the Aharonov-Bohm Effect for Relativistic Spinning Particles [PDF]

, 1996
The formulation of Berry for the Aharonov-Bohm effect is generalized to the relativistic regime. Then, the problem of finding the self-adjoint extensions of the (2+1)-dimensional Dirac Hamiltonian, in an Aharonov-Bohm background potential, is solved in a
, Berry M. V., Dirac P. A. M., F. Fonseca Romero, H. O Girotti, Reed M.   +5 more
core   +3 more sources

Gravitational waves carrying orbital angular momentum

New Journal of Physics, 2016
Spinorial formalism is used to map every electromagnetic wave into the gravitational wave (within the linearized gravity). In this way we can obtain the gravitational counterparts of Bessel, Laguerre-Gauss, and other light beams carrying orbital angular ...
Iwo Bialynicki-Birula, Zofia Bialynicka-Birula   +1 more
doaj   +1 more source

Connection Between Wave Functions in the Dirac and Foldy-Wouthuysen Representations

, 2006
The connection between wave functions in the Dirac and Foldy-Wouthuysen representations is found. When the Foldy-Wouthuysen transformation is exact, upper spinors in two representations differ only by constant factors, and lower spinors in the Foldy ...
A. J. Silenko, A. J. Silenko, A. J. Silenko, A. J. Silenko, D. M. Fradkin, J. P. Costella, L. D. Landau, L. L. Foldy, T. Goldman, V. G. Bagrov, W. Tsai   +10 more
core   +1 more source

Scattering of a Klein-Gordon particle by a Woods-Saxon potential

, 2005
We solve the Klein-Gordon equation in the presence of a spatially one-dimensional Woods-Saxon potential. The scattering solutions are obtained in terms of hypergeometric functions and the condition for the existence of transmission resonances is derived.
Clara Rojas, D. Bohm, J. Rafelski, R. Newton, S. A. Fulling, V. S. Popov, Víctor M. Villalba, W. Greiner, W. Greiner   +8 more
core   +1 more source

Continuous spin superparticle in 4D, N=1 curved superspace

Nuclear Physics B
We present a new particle model that describes the dynamics of a 4D, N=1 continuous spin particle in AdS4 superspace and is a generalization of the continuous-spin superparticle model in flat 4D, N=1 superspace proposed in 2506.19709 [hep-th].
I.L. Buchbinder, S.A. Fedoruk
doaj   +1 more source

A useful form of the recurrence relation between relativistic atomic matrix elements of radial powers

, 2001
Recently obtained recurrence formulae for relativistic hydrogenic radial matrix elements are cast in a simpler and perhaps more useful form. This is achieved with the help of a new relation between the $r^a$ and the $\beta r^b$ terms ($\beta$ is a $4 ...
A L Salas-Brito, Blanchard P, De Lange O L, Drake G W F, Greiner W, H N Núñez-Yépez, Ilarraza-LomelíA C, Martínez-y-Romero R P, Martínez-y-Romero R P, Moss R E, Núñez-Yépez H N, Pasternack S, Quiney H M, R P Martínez-y-Romero   +13 more
core   +1 more source

Absence of Differential Correlations Between the Wave Equations for Upper-Lower One-Index Twistor Fields Borne by the Infeld-van der Waerden Spinor Formalisms for General Relativity

, 2013
It is pointed out that the wave equations for any upper-lower one-index twistor fields which take place in the frameworks of the Infeld-van der Waerden {\gamma}{\epsilon}-formalisms must be formally the same.
Cardoso, J. G., Weber, Karla
core   +1 more source