Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Vidanovic, Ivana"'
Publikováno v:
Phys. Rev. A 89, 053614 (2014)
In recent years, controlled dissipation has proven to be a useful tool for probing of a quantum system in the ultracold setup. In this paper we consider dynamics of bosons induced by a dissipative local defect. We address superfluid and supersolid ph
Externí odkaz:
http://arxiv.org/abs/1402.0011
Publikováno v:
New J. Phys. 15, 035008 (2013)
In the study of trapped two-component Bose gases, a widely used dynamical protocol is to start from the ground state of a one-component condensate and then switch half the atoms into another hyperfine state. The slightly different intra-component and
Externí odkaz:
http://arxiv.org/abs/1210.0030
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 46 (2013) 065303
We investigate geometric resonances in Bose-Einstein condensates by solving the underlying time-dependent Gross-Pitaevskii equation for systems with two- and three-body interactions in an axially-symmetric harmonic trap. To this end, we use a recentl
Externí odkaz:
http://arxiv.org/abs/1208.0991
Autor:
Vudragovic, Dusan, Vidanovic, Ivana, Balaz, Antun, Muruganandam, Paulsamy, Adhikari, Sadhan K.
Publikováno v:
Comput. Phys. Commun. 183 (2012) 2021
We present C programming language versions of earlier published Fortran programs (Muruganandam and Adhikari, Comput. Phys. Commun. 180 (2009) 1888) for calculating both stationary and non-stationary solutions of the time-dependent Gross-Pitaevskii (G
Externí odkaz:
http://arxiv.org/abs/1206.1361
Publikováno v:
Phys. Rev. A 84 (2011) 013618
In a recent experiment, a Bose-Einstein condensate of Li7 has been excited by a harmonic modulation of the atomic s-wave scattering length via Feshbach resonance. By combining an analytical perturbative approach with extensive numerical simulations w
Externí odkaz:
http://arxiv.org/abs/1106.4686
Autor:
Balaz, Antun, Vidanovic, Ivana, Stojiljkovic, Danica, Vudragovic, Dusan, Belic, Aleksandar, Bogojevic, Aleksandar
Publikováno v:
Commun. Comput. Phys. 11 (2012) 739
We present Path Integral Monte Carlo C code for calculation of quantum mechanical transition amplitudes for 1D models. The SPEEDUP C code is based on the use of higher-order short-time effective actions and implemented to the maximal order $p$=18 in
Externí odkaz:
http://arxiv.org/abs/1105.0542
Publikováno v:
J.Stat.Mech.2011:03005,2011
Based on a previously developed recursive approach for calculating the short-time expansion of the propagator for systems with time-independent potentials and its time-dependent generalization for simple single-particle systems, in this paper we pres
Externí odkaz:
http://arxiv.org/abs/1011.5185
Publikováno v:
Phys. Lett. A 374 (2010) 1539
A recently developed efficient recursive approach for analytically calculating the short-time evolution of the one-particle propagator to extremely high orders is applied here for numerically studying the thermodynamical and dynamical properties of a
Externí odkaz:
http://arxiv.org/abs/1001.1463
Publikováno v:
J.Stat.Mech.2011:03004,2011
In this and subsequent paper arXiv:1011.5185 we develop a recursive approach for calculating the short-time expansion of the propagator for a general quantum system in a time-dependent potential to orders that have not yet been accessible before. To
Externí odkaz:
http://arxiv.org/abs/0912.2743
Publikováno v:
Phys. Rev. E 80 (2009) 066706
In this paper, building on a previous analysis [1] of exact diagonalization of the space-discretized evolution operator for the study of properties of non-relativistic quantum systems, we present a substantial improvement to this method. We apply rec
Externí odkaz:
http://arxiv.org/abs/0911.5154