Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Dehkharghani, A. S."'
Autor:
Dehkharghani, A. S.
In this thesis, I go through the well-known solutions to the one and two-particle systems trapped in a quantum harmonic oscillator and then continue to the three, four and many-body quantum systems. This is done by developing new analytical models an
Externí odkaz:
http://arxiv.org/abs/1801.04993
Publikováno v:
Phys. Rev. Lett. 121, 080405 (2018); Erratum: Phys. Rev. Lett. 128, 239901 (2022)
We study the ground state of a one-dimensional (1D) trapped Bose gas with two mobile impurity particles. To investigate this set-up, we develop a variational procedure in which the coordinates of the impurity particles are slow-like variables. We val
Externí odkaz:
http://arxiv.org/abs/1712.01538
Autor:
Harshman, N. L., Olshanii, Maxim, Dehkharghani, A. S., Volosniev, A. G., Jackson, Steven Glenn, Zinner, N. T.
Publikováno v:
Phys. Rev. X 7, 041001 (2017)
We show that the dynamics of particles in a one-dimensional harmonic trap with hard-core interactions can be solvable for certain arrangements of unequal masses. For any number of particles, there exist two families of unequal mass particles that hav
Externí odkaz:
http://arxiv.org/abs/1704.01433
Publikováno v:
Phys. Rev. A 96, 043611 (2017)
We develop a quantum simulator architecture that is suitable for the simulation of $U(1)$ Abelian gauge theories such as quantum electrodynamics. Our approach relies on the ability to control the hopping of a particle through a barrier by means of th
Externí odkaz:
http://arxiv.org/abs/1704.00664
Publikováno v:
Phys. Rev. A 95, 053632 (2017)
Detailed analysis of the system of four interacting ultra-cold fermions confined in a one-dimensional harmonic trap is performed. The analysis is done in the framework of a simple variational ansatz for the many-body ground state and its predictions
Externí odkaz:
http://arxiv.org/abs/1703.08720
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 50 144002 (2017)
In this paper we study a mixed system of bosons and fermions with up to six particles in total. All particles are assumed to have the same mass. The two-body interactions are repulsive and are assumed to have equal strength in both the Bose-Bose and
Externí odkaz:
http://arxiv.org/abs/1703.01836
Publikováno v:
Eur. Phys. J. D (2017) 71:37
We investigate one-dimensional harmonically trapped two-component systems for repulsive interaction strengths ranging from the non-interacting to the strongly interacting regime for Fermi-Fermi mixtures. A new and powerful mapping between the interac
Externí odkaz:
http://arxiv.org/abs/1606.09528
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 49 (2016) 135301
We make use of a simple pair correlated wave function approach to obtain results for the ground-state densities and momentum distribution of a one-dimensional three-body bosonic system with different interactions in a harmonic trap. For equal interac
Externí odkaz:
http://arxiv.org/abs/1601.06918
Publikováno v:
Scientific Reports 6, 28362 (2016)
Interacting one-dimensional quantum systems play a pivotal role in physics. Exact solutions can be obtained for the homogeneous case using the Bethe ansatz and bosonisation techniques. However, these approaches are not applicable when external confin
Externí odkaz:
http://arxiv.org/abs/1512.08905
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 49, 075303 (2016)
We study the correlation between an impurity and a small ensemble of bosonic particles in one dimension. Our study analyzes the one-body density matrix and calculates the corresponding von Neumann entanglement entropy as a function of the interaction
Externí odkaz:
http://arxiv.org/abs/1512.03367