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Landau damping of spin waves in trapped Boltzmann gases
Ultracold gas boltzmann spatial dependence
2014/12/20
A semiclassical method is used to study Landau damping of transverse pseudo-spin waves in harmonically trapped ultracold gases in the collisionless Boltzmann limit. In this approach, the time evolutio...
Anisotropic spin diffusion in trapped Boltzmann gases
Trapped bose gas mixture dynamics grain boltzmann constant
2014/12/20
Recent experiments in a mixture of two hyperfine states of trapped Bose gases show behavior analogous to a spin-1/2 system, including transverse spin waves and other familiar Leggett-Rice-type effects...
Spin diffusion in trapped gases: Anisotropy in dipole and quadrupole modes
Trapped bose gas mixture dynamics grain spin wave frequency
2014/12/20
Recent experiments in a mixture of two hyperfine states of trapped Bose gases show behavior analogous to a spin-1/2 system, including transverse spin waves and other familiar Leggett-Rice-type effects...
Critical Temperature of Interacting Bose Gases in Two and Three Dimensions
Superfluid temperature bose gas the space dimension integral monte carlo simulation particles atoms
2014/12/19
We calculate the superfluid transition temperature of homogeneous interacting Bose gases in three and two spatial dimensions using large-scale path integral Monte Carlo simulations (with up to N=105 p...
In this thesis we report experimental and simulation study of granular gases. As a non-equilibrium system composed of macroscopic particles, a granular gas often shows a picture similar to a molecular...
The XXII Europhysics Conference on Atomic and Molecular Physics of Ionized Gases (ESCAMPIG)
The XXII Europhysics Conference on Atomic Molecular Physics of Ionized Gases ESCAMPIG
2013/10/30
The ESCAMPIG (Europhysics Conference on Atomic and Molecular Physics of Ionized Gases) is an international biennial conference of the EPS (European Physical Society). The conference topics comprise ba...
Non-Perturbative Prediction of the Ferromagnetic Transition in Repulsive Fermi Gases
Fermi Gases Ferromagnetic Transition
2011/7/21
It is generally believed that a dilute spin-1/2 Fermi gas with repulsive interactions can undergo a ferromagnetic phase transition to a spin-polarized state at a critical gas parameter $(k_{\text F}a)...
Effect of a plasma grating on pump-probe experiments near the ionization threshold in gases
plasma pump-probe experiments ionization threshold gases
2011/8/4
Abstract: Calculations are performed of the phase shift caused by the spatial modulation in the plasma density due to interference between a strong pump pulse and a weak probe pulse. It is suggested t...
Tailoring THz radiation by controlling tunnel photoionization events in gases
Tailoring THz radiation controlling tunnel photoionization events gases
2011/8/3
Abstract: Applications ranging from nonlinear terahertz spectroscopy to remote sensing require broadband and intense THz radiation which can be generated by focusing two-color laser pulses into a gas....
Bose-Einstein condensate in gases of rare atomic species
Bose-Einstein condensate gases of rare atomic species Atomic Physics
2011/8/1
Abstract: We report on the successful extension of production of Bose-Einstein Condensate (BEC) to rare species. Despite its low natural abundance of 0.13%, $^{168}$Yb is directly evaporatively cooled...
Interaction enhanced imaging of individual atoms embedded in dense atomic gases
imaging atoms embedded dense atomic gases
2011/9/6
We propose a new all-optical method to image individual atoms within dense atomic gases. The scheme exploits interaction induced shifts on highly polarizable excited states, which can be spatially res...
Influence of higher-order Kerr effect on conical emission from laser filaments in gases
higher-order Kerr effect ultrashort laser filaments
2011/8/31
We numerically investigate the conical emission (CE) from ultrashort laser filaments, both considering and disregarding the higher-order Kerr effect (HOKE). While the consideration of HOKE has almost ...
Traveling Dark Solitons in Superfluid Fermi Gases
Traveling Dark Solitons Superfluid Fermi Gases
2010/11/25
Families of dark solitons exist in superfluid Fermi gases. The energy-velocity dispersion and
number of depleted particles completely determines the dynamics of dark solitons on a slowly-
varying ba...
Topological semimetal: a probable new state of quantum optical lattice gases protected by D$_4$ symmetry
Topological semimetal quantum optical lattice gases
2010/11/24
The use of optical lattices plays a versatile role in advancing knowledge of correlated quantum
matter. The recent orbital lattice experimentsof Wirth et al [1{3] open up a new thrust towards
discov...
Induced p-wave superfluidity in strongly interacting imbalanced Fermi gases
Induced p-wave superfluidity imbalanced Fermi gases
2010/11/24
The induced interaction among the majority spin species, due to the presence of the minority
species, is computed for the case of a population-imbalanced resonantly-interacting Fermi gas.