Zobrazeno 1 - 10
of 219
pro vyhledávání: '"V. C. Aguilera-Navarro"'
Publikováno v:
Solid State Communications. 129:577-581
A Bethe-Salpeter treatment of Cooper pairs (CPs) based on an ideal Fermi gas (IFG) ‘sea’ yields the familiar stable negative-energy, infinite-lifetime two-particle bound-state if two-hole CPs are ignored. Otherwise, it gives purely imaginary ener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c419a0f27cace4b7230bfc96e3a5830
https://doi.org/10.1016/j.ssc.2003.12.001
https://doi.org/10.1016/j.ssc.2003.12.001
Publikováno v:
International Journal of Theoretical Physics. 43:483-495
Tunneling through the superposition of two potential barriers, one rectangular and other linear, is discussed. Besides its importance in fields like nanostructure, the problem presents some interesting physical and mathematical features.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ed69ce655b2933fa076537d10a17ea5
https://doi.org/10.1023/b:ijtp.0000028880.94469.a1
https://doi.org/10.1023/b:ijtp.0000028880.94469.a1
Publikováno v:
International Journal of Modern Physics B. 17:3304-3309
A Bethe–Salpeter treatment of Cooper pairs (CPs) based on an ideal Fermi gas (IFG) "sea" produces unstable CPs if holes are not ignored. Stable CPs with damping emerge when the BCS ground state replaces the IFG, and are positive-energy, finite-life
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8af404c6ea05906beb185e7577636cb8
https://doi.org/10.1142/s0217979203021757
https://doi.org/10.1142/s0217979203021757
Publikováno v:
International Journal of Theoretical Physics. 42:1795-1807
The trapezoidal potential is the result of the superposition of a rectangular barrier and a linear potential. It has interest in the field of solid-state physics as long as heterostructures are concerned. The determination and discussion of the scatt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4f7cdd09918a40ff964496db8a678b2
https://doi.org/10.1023/a:1026191507292
https://doi.org/10.1023/a:1026191507292
Publikováno v:
International Journal of Theoretical Physics. 41:877-886
Reflection and transmission times through a linear potential is studied by using the stationary phase method. The incident particle is described by a wave packet constructed from a momentum distribution δ(k′ − k) highly concentrated around a fix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daa781db043290cd3fd84c7024812181
https://doi.org/10.1023/a:1015737024481
https://doi.org/10.1023/a:1015737024481
Publikováno v:
American Journal of Physics. 69:788-792
A simple method for representing probabilistic systems visually based on a Monte Carlo approach is discussed. Applications are given for the hydrogen atom and the propagation of wave functions associated with tunneling through a potential barrier.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::376296a4d42d9a0ea407433ea776ec40
https://doi.org/10.1119/1.1339277
https://doi.org/10.1119/1.1339277
Publikováno v:
International Journal of Theoretical Physics. 40:1809-1816
The vibrational–rotational states of the supersingular plus Coulomb potential A/r 4 − Z/r are variationally constructed using a nonorthogonal basis of atomic hydrogenic eigenfunctions modulated by an exponential factor exp(−α/r), ensuring the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01af95cb3f8b1263e14b4074d90f6219
https://doi.org/10.1023/a:1011924816959
https://doi.org/10.1023/a:1011924816959
Publikováno v:
European Journal of Physics. 20:177-182
Bose-Einstein condensation in an ideal (i.e. interactionless) boson gas can be studied analytically, at university-level statistical and solid state physics, in any positive dimensionality (d>0) for identical bosons with any positive-exponent (s>0) e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5a7f9dc11c03df980d6e0f1ee3fca35
https://doi.org/10.1088/0143-0807/20/3/307
https://doi.org/10.1088/0143-0807/20/3/307
Autor:
V. C. Aguilera-Navarro, E. Ley Koo
Publikováno v:
International Journal of Theoretical Physics. 36:157-166
Most work on supersingular potentials has focused on the study of the ground state. In this paper, a global analysis of the ground and excited states for the successive values of the orbital angular momentum of the supersingular plus quadratic potent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3be2e74a43a139f507e560f86d86ffe6
https://doi.org/10.1007/bf02435778
https://doi.org/10.1007/bf02435778
Autor:
V. C. Aguilera-Navarro, N. Ullah
Publikováno v:
International Journal of Theoretical Physics. 33:1673-1679
A variational analysis of the spiked harmonic oscillator Hamiltonian −d2/dr2 +r2 +λ/r5/2,λ>0, is reported. A trial function automatically satisfying both the Dirichlet boundary condition at the origin and the boundary condition at infinity is int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc53dc989621553d4dbd6a157d8052ae
https://doi.org/10.1007/bf00672691
https://doi.org/10.1007/bf00672691