Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 3

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Mixtures of fermionic atoms with mass imbalance in optical lattices

100%
Farkašovský P.
Open Physics
|
2009
|
vol. 7
|
issue 1
32-40
EN
We study ground-state properties of ultracold fermionic mixtures with strong mass imbalance in one and two-dimensional optical lattices through large scale numerical simulations of the attractive Falicov-Kimball model in harmonic confining potentials. In the one-dimensional case, we observe a formation of insulating atomic-density-wave domains at low particle fillings and a coexistence of insulating and metallic domains at intermediate and large particle fillings. Moreover, we show how the formation of metallic regions is reflected in the momentum distribution of the light atoms. In two dimensions, we find a rich spectrum of density-wave patterns including the homogeneous distributions, the axial striped distributions, the labyrinthine phases as well as the segregated phases.
2
Content available remote

Valence intersubband gain without population inversion

84%
Pereira M.
Open Physics
|
2010
|
vol. 8
|
issue 1
61-64
EN
Terahertz gain without population inversion is studied in thin III–V semiconductor quantum wells. Nonequilibrium hole populations leading to intervalence gain in the transverse electric mode are investigated. The results are obtained with a Keldysh Nonequilibrium Green’s Functions approach that takes into account bandstructure, manybody and nonequilibrium effects.
3
Content available remote

A quasiclassical approach to strongly correlated quantum dots

84%
Matulis A., Jarema D., Anisimovas E.
Open Physics
|
2009
|
vol. 7
|
issue 4
704-710
EN
The adiabatic approximation and reaction-coordinate method is applied to the quasiclassical description of nanostructures. In a two-electron model quantum dot, the Schrödinger equation is solved in the vicinity of the transition path connecting two equivalent potential-energy minima. The obtained results demonstrate the formation of a Wigner crystallite.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.