Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Anisimovas, E."'
Publikováno v:
Phys. Rev. B 106, 144301 (2022)
Dynamics of particle in a resonantly driven quantum well can be interpreted as that of a particle in a crystal-like structure, with the time playing the role of the coordinate. By introducing an adiabatically varied phase in the driving protocol, we
Externí odkaz:
http://arxiv.org/abs/2206.14804
Publikováno v:
Phys. Rev. A 95, 043616 (2017)
We consider a system with spin-orbit coupling and derive equations of motion which include the effects of Berry curvatures. We apply these equations to investigate the dynamics of particles with equal Rashba-Dresselhaus spin-orbit coupling in one dim
Externí odkaz:
http://arxiv.org/abs/1702.03298
Autor:
Andrijauskas, T., Anisimovas, E., Račiūnas, M., Mekys, A., Kudriašov, V., Spielman, I. B., Juzeliūnas, G.
Publikováno v:
Phys. Rev. A 92, 033617 (2015)
We consider ultracold atoms in a two-dimensional optical lattice of the dice geometry in a tight-binding regime. The atoms experience a laser-assisted tunneling between the nearest neighbour sites of the dice lattice accompanied by the momentum recoi
Externí odkaz:
http://arxiv.org/abs/1501.00425
Publikováno v:
Phys. Rev. A 89, 013632 (2014)
We introduce an explicit scheme to realize Chern insulating phases employing cold atoms trapped in a state-dependent optical lattice and laser-induced tunneling processes. The scheme uses two internal states, a ground state and a long-lived excited s
Externí odkaz:
http://arxiv.org/abs/1401.1718
Publikováno v:
New Journal of Physics 15 013025 (2013)
Ultracold fermions trapped in a honeycomb optical lattice constitute a versatile setup to experimentally realize the Haldane model [Phys. Rev. Lett. 61, 2015 (1988)]. In this system, a non-uniform synthetic magnetic flux can be engineered through las
Externí odkaz:
http://arxiv.org/abs/1209.1126
Autor:
Radzvilavičius, A., Anisimovas, E.
Publikováno v:
A. Radzvilavicius and E. Anisimovas, J. Phys.: Condens. Matter 23, 385301 (2011)
The most energetically favourable arrangement of low-density electrons in an infinite two-dimensional plane is the ordered triangular Wigner lattice. However, in most instances of contemporary interest one deals instead with finite clusters of strong
Externí odkaz:
http://arxiv.org/abs/1204.6028
Autor:
Anisimovas, E., Matulis, A.
We consider a model dissipative quantum-mechanical system realized by coupling a quantum oscillator to a semi-infinite classical string which serves as a means of energy transfer from the oscillator to the infinity and thus plays the role of a dissip
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701173
Currents in a few-electron parabolic quantum dot placed into a perpendicular magnetic field are considered. We show that traditional ways of investigating the Wigner crystallization by studying the charge density correlation function can be supplemen
Externí odkaz:
http://arxiv.org/abs/cond-mat/0408672
Publikováno v:
Phys. Rev. B 69, 075305 (2004)
We show that the critical magnetic fields at which a few-electron quantum dot undergoes transitions between successive values of its angular momentum (M), for large M values follow a very simple power-law dependence on the effective inter-electron in
Externí odkaz:
http://arxiv.org/abs/cond-mat/0408676
Exact many-body wave functions for quantum dots containing up to four interacting electrons are computed and we investigated the distribution of the wave function nodes, also called vortices. For this purpose, we evaluate the reduced wave function by
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404677