Zobrazeno 1 - 10
of 693
pro vyhledávání: '"Hojman, P."'
Autor:
Hojman, Sergio A., Asenjo, Felipe A.
It is shown that any mathematical solution for null electromagnetic field knots in flat spacetime is also a null field knotted solution for cosmological electromagnetic fields. This is obtained by replacing the time $t\rightarrow \tau=\int dt/a$, whe
Externí odkaz:
http://arxiv.org/abs/2308.07142
Autor:
Asenjo, Felipe A., Hojman, Sergio A., Villegas-Martínez, Braulio M., Moya-Cessa, Héctor M., Soto-Eguibar, Francisco
Two exact different solutions to the Telegraph equation in three-dimensional space are obtained in terms of Airy functions. As a result, these solutions unveil a distinctive propagation pattern along a coordinate that resembles a speed-cone-like coor
Externí odkaz:
http://arxiv.org/abs/2307.00196
Autor:
Asenjo, Felipe A., Hojman, Sergio A.
It is shown that any cosmological anisotropic model produces supersymmetric theories for both massless scalar and electromagnetic fields. This supersymmetric theory is the time-domain analogue of a supersymmetric quantum mechanical theory. In this ca
Externí odkaz:
http://arxiv.org/abs/2306.05210
We investigate the propagation of certain non-plane wave solutions to Maxwell's equations in both flat and curved spacetimes. We find that such solutions (or rather parts of them) exhibit accelerative behaviour, and in particular do not propagate on
Externí odkaz:
http://arxiv.org/abs/2305.08666
Autor:
Asenjo, Felipe A., Hojman, Sergio A., Villegas-Martínez, Braulio M., Moya-Cessa, Héctor M., Soto-Eguibar, Francisco
A medium with specific anisotropic refractive indices can induce a supersymmetric behavior in the propagation of polarized electromagnetic waves, in an analogue fashion to a quantum mechanical system. The polarizations of the wave are the ones which
Externí odkaz:
http://arxiv.org/abs/2305.04157
Autor:
Giudice, T., Abriola, D., Arazi, A., de Barbará, E., Cardona, M. A., Gómez, J., Hojman, D., Betan, R. M. Id, Kohen, M. S., Llaneza, N., Martí, G. V., Paes, B., Schneider, D., Soler, H., Lubian, J.
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 50 045103, 2023
Measurements of the elastic scattering angular distribution for the d+$^{197}$Au system were carried out covering deuteron incident energies in the range from 5 to 16 MeV, i.e. approximately 50% below and above the Coulomb barrier. A critical interac
Externí odkaz:
http://arxiv.org/abs/2302.09980
Harmonic wave functions for integer and half-integer angular momentum are given in terms of the Euler angles $(\theta,\phi,\psi)$ that define a rotation in $SO(3)$, and the Euclidean norm in ${\mathbb R}^3$. Following a classical work by Schwinger, $
Externí odkaz:
http://arxiv.org/abs/2211.10775
Autor:
Villegas-Martínez, Braulio M., Soto-Eguibar, Francisco, Hojman, Sergio A., Asenjo, Felipe A., Moya-Cessa, Héctor M.
We show that several Hamiltonians that are $\mathcal{PT}$ symmetric may be taken to Hermitian Hamiltonians via a non-unitary transformation and vice versa. We also show that for some specific Hamiltonians such non-unitary transformations may be assoc
Externí odkaz:
http://arxiv.org/abs/2201.06536
We revisit the observable used for the direct measurements of the electron's $g$ factor. This is done by considering the sub-leading effects of the large magnetic background field and virtual Standard Model processes. We find substantial corrections
Externí odkaz:
http://arxiv.org/abs/2110.05506
Publikováno v:
Optik 252, 168468 (2022)
By adapting the Madelung-Bohm formalism to paraxial wave propagation we show, by using Ermakov-Lewis techniques, that the Gouy phase is related to the form of the phase chosen in order to produce a Gaussian function as a propagated field. For this, w
Externí odkaz:
http://arxiv.org/abs/2109.12373