Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Melezhik V"'
Autor:
Melezhik, V. S.
Sympathetic cooling of a Fermi gas with a buffer gas of bosonic atoms is an efficient way to achieve quantum degeneracy in Fermi systems. However, all attempts to use this method for cooling ions until recently were ineffective because of the unremov
Externí odkaz:
http://arxiv.org/abs/2112.08081
Autor:
Shadmehri, S., Melezhik, V. S.
The nondirect product discrete variable representation (npDVR) is developed for the time-dependent Schr\"odinger equation with nonseparable angular variables and is applied to a hydrogen atom in elliptically polarized strong laser fields. The 2D npDV
Externí odkaz:
http://arxiv.org/abs/2111.06588
We investigate the Coulomb breakup of $^{11}$Be halo nuclei on a heavy target from intermediate (70 MeV/nucleon) to low energies (5 MeV/nucleon) within the non-perturbative time-dependent approach. The convergence of the computational scheme is demon
Externí odkaz:
http://arxiv.org/abs/2010.14435
Autor:
Ishmukhamedov, I. S., Melezhik, V. S.
Publikováno v:
Phys. Rev. A 95, 062701 (2017)
We investigate the quantum dynamics of two interacting bosonic atoms confined in a one-dimensional anharmonic trap. The tunneling rate, an experimentally measurable parameter of the system, was calculated as a function of the effective coupling inter
Externí odkaz:
http://arxiv.org/abs/1701.06199
We develop a non-perturbative theoretical framework to treat collisions with generic anisotropic interactions in quasi-one-dimensional geometries. Our method avoids the limitations of pseudopotential theory allowing to include accurately long-range a
Externí odkaz:
http://arxiv.org/abs/1302.5632
We analyze d-wave resonances in atom-atom scattering in the presence of harmonic confinement by employing a higher partial wave pseudopotential. Analytical results for the scattering amplitude and transmission are obtained and compared to correspondi
Externí odkaz:
http://arxiv.org/abs/1202.2298
We observe and analyze d-wave resonant scattering of bosons in tightly confining harmonic waveguides. It is shown that the d-wave resonance emerges in the quasi-1D regime as an imprint of a 3D d-wave shape resonance. A scaling relation for the positi
Externí odkaz:
http://arxiv.org/abs/1102.5686
We demonstrate that scattering of particles strongly interacting in three dimensions (3D) can be suppressed at low energies in a quasi-one-dimensional (1D) confinement. The underlying mechanism is the interference of the s- and p-wave scattering cont
Externí odkaz:
http://arxiv.org/abs/quant-ph/0610265
Basing on the picture of Frenkel excitons in molecular crystals described by the XY-model we consider the linear response of linear cyclic aggregates at finite temperature. The exact results for characteristics of the response are obtained. In partic
Externí odkaz:
http://arxiv.org/abs/cond-mat/9509040
We revise the sequences of SUSY for a cyclic adiabatic evolution governed by the supersymmetric quantum mechanical Hamiltonian. The condition (supersymmetric adiabatic evolution) under which the supersymmetric reductions of Berry (nondegenerated case
Externí odkaz:
http://arxiv.org/abs/hep-th/9410020