Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Luis Miguel Nieto"'
Publikováno v:
The European Physical Journal Plus. 136
In this paper, we provide a detailed description of the eigenvalue $$ E_{D}(x_0)\le 0$$ (respectively, $$ E_{N}(x_0)\le 0$$ ) of the self-adjoint Hamiltonian operator representing the negative Laplacian on the positive half-line with a Dirichlet (res
Publikováno v:
Annals of Physics. 400:246-261
The spherically symmetric potential a δ ( r − r 0 ) + b δ ′ ( r − r 0 ) is generalised for the d -dimensional space as a characterisation of a unique selfadjoint extension of the free Hamiltonian. For this extension of the Dirac delta, the sp
Publikováno v:
Symmetry
Volume 13
Issue 2
Symmetry, Vol 13, Iss 350, p 350 (2021)
Volume 13
Issue 2
Symmetry, Vol 13, Iss 350, p 350 (2021)
We find supersymmetric partners of a family of self-adjoint operators which are self-adjoint extensions of the differential operator $-d^2/dx^2$ on $L^2[-a,a]$, $a>0$, that is, the one dimensional infinite square well. First of all, we classify these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0fbac196e6e281a2bf4cfe8cd24abf7
Publikováno v:
UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname
instname
Producción Científica
For a harmonically trapped system consisting of two bosons in one spatial dimension with infinite contact repulsion (hard core bosons), we derive an expression for the onebody density matrix ρB in terms of center of mass
For a harmonically trapped system consisting of two bosons in one spatial dimension with infinite contact repulsion (hard core bosons), we derive an expression for the onebody density matrix ρB in terms of center of mass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::073627a1697c7a94980cea4df323c1e0
https://doi.org/10.1140/epjp/s13360-021-01671-x
https://doi.org/10.1140/epjp/s13360-021-01671-x
In this work we describe semiclassical states in graphene under a constant perpendicular magnetic field by constructing coherent states in the Barut-Girardello sense. Since we want to keep track of the angular momentum, the use of the symmetric gauge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2459562a8221fde0c9417f11ae5e6e28
Autor:
Luis Miguel Nieto, Jose M. Muñoz-Castañeda, Manuel Gadella, L. Santamaría-Sanz, J. Mateos Guilarte
Publikováno v:
The European Physical Journal Plus. 135
We present a detailed study of a generalised one-dimensional Kronig–Penney model using $$\delta \text {-}\delta '$$ potentials. We analyse the band structure and the density of states in two situations. In the first case, we consider an infinite ar
Publikováno v:
Physical Review
In this paper the scattering between a wobbling kink and a wobbling antikink in the standard $\phi^4$ model is numerically investigated. The dependence of the final velocities, wobbling amplitudes and frequencies of the scattered kinks on the collisi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2832f0ff3a54fc139b19805cfbeb47d6
http://arxiv.org/abs/2007.15517
http://arxiv.org/abs/2007.15517
In this note we consider a one-dimensional quantum mechanical particle constrained by a parabolic well perturbed by a Gaussian potential. As the related Birman-Schwinger operator is trace class, the Fredholm determinant can be exploited in order to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da6b57f6e44e3b3dc9e8745e95c1da24
http://arxiv.org/abs/2005.09245
http://arxiv.org/abs/2005.09245
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
UVaDOC. Repositorio Documental de la Universidad de Valladolid
Consejo Superior de Investigaciones Científicas (CSIC)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
UVaDOC. Repositorio Documental de la Universidad de Valladolid
Consejo Superior de Investigaciones Científicas (CSIC)
We study a non-relativistic particle subject to a three-dimensional spherical potential consisting of a finite well and a radial $\delta$-$\delta'$ contact interaction at the well edge. This contact potential is defined by appropriate matching condit
Autor:
Kamel Bencheikh, Luis Miguel Nieto
Publikováno v:
UVaDOC: Repositorio Documental de la Universidad de Valladolid
Universidad de Valladolid
UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname
Universidad de Valladolid
UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname
We study time evolution of Wigner function of an initially interacting one-dimensional quantum gas following the switch-off of the interactions. For the scenario where at t=0the interactions are suddenly suppressed, we derive a relationship between t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8f30144e892302da5e7560c108235af
http://arxiv.org/abs/1910.07403
http://arxiv.org/abs/1910.07403