Results 31 to 40 of about 2,622 (64)

Comment on "Stimulated Raman adiabatic passage from an atomic to a molecular Bose-Einstein condensate"

open access: yes, 2004
Collective two-color photoassociation of a freely-interacting 87Rb Bose-Einstein condensate is theoretically examined, focusing on stimulated Raman adiabatic passage (STIRAP) from an atomic to a stable molecular condensate. In particular, Drummond et al.
Collin, Anssi   +2 more
core   +1 more source

Efimov three-body states on top of a Fermi sea

open access: yesNew Journal of Physics, 2014
The stabilization of Cooper pairs of bound electrons in the background of a Fermi sea is the origin of superconductivity and the paradigmatic example of the striking influence of many-body physics on few-body properties.
Nicolai Gayle Nygaard   +1 more
doaj   +1 more source

Short note on the Rabi model

open access: yes, 2012
The spectral density of the Rabi model is calculated exactly within a continued fraction approach.
Ziegler, K.
core   +1 more source

On the Absence of Spurious Eigenstates in an Iterative Algorithm Proposed By Waxman

open access: yes, 2006
We discuss a remarkable property of an iterative algorithm for eigenvalue problems recently advanced by Waxman that constitutes a clear advantage over other iterative procedures.
A R Plastino   +5 more
core   +1 more source

Wave Functions and Energy Terms of the SCHR\"Odinger Equation with Two-Center Coulomb Plus Harmonic Oscillator Potential

open access: yes, 1998
Schr\"odinger equation for two center Coulomb plus harmonic oscillator potential is solved by the method of ethalon equation at large intercenter separations.
D. U. Matrasulov   +7 more
core   +1 more source

Quantum Information Entropies on Hyperbolic Single Potential Wells. [PDF]

open access: yesEntropy (Basel), 2022
Gil-Barrera CA   +3 more
europepmc   +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]

open access: yes, 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   +4 more
core   +1 more source

Semi-Classical Discretization and Long-Time Evolution of Variable Spin Systems. [PDF]

open access: yesEntropy (Basel), 2021
Morales-Hernández GE   +3 more
europepmc   +1 more source

Quantum anticentrifugal potential in a bent waveguide

open access: yes, 2011
We show the existence of an anticentrifugal force for a quantum particle in a bent waveguide. This counterintuitive force due to dimensionality was shown to exist in a flat $R^2$ space but there it needs an additional $\delta$-like potential at the ...
Atanasov   +11 more
core   +1 more source

Microtubules: Montroll's kink and Morse vibrations

open access: yes, 1997
Using a version of Witten's supersymmetric quantum mechanics proposed by Caticha, we relate Montroll's kink to a traveling, asymmetric Morse double-well potential suggesting in this way a connection between kink modes and vibrational degrees of freedom ...
A. Caticha   +10 more
core   +1 more source

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