Results 11 to 20 of about 2,411 (56)

Many body population trapping in ultracold dipolar gases

open access: yesNew Journal of Physics, 2014
A system of interacting dipoles is of paramount importance for understanding many-body physics. The interaction between dipoles is anisotropic and long-range . While the former allows one to observe rich effects due to different geometries of the system,
Omjyoti Dutta   +2 more
doaj   +1 more source

Gauge matters: observing the vortex-nucleation transition in a Bose condensate

open access: yesNew Journal of Physics, 2015
The order parameter of a quantum-coherent many-body system can include a phase degree of freedom, which, in the presence of an electromagnetic field, depends on the choice of gauge. Because of the relationship between the phase gradient and the velocity,
L J LeBlanc   +5 more
doaj   +1 more source

Accurate control of a Bose-Einstein condensate by managing the atomic interaction

open access: yes, 2010
We exploit the variation of the atomic interaction in order to move ultra-cold atoms across an AC-driven periodic lattice. By breaking relevant symmetries, a gathering of atoms is achieved.
Arevalo, E., Morales-Molina, L.
core   +1 more source

Emergence of junction dynamics in a strongly interacting Bose mixture

open access: yesNew Journal of Physics, 2018
We study the dynamics of a one-dimensional system composed of a bosonic background and one impurity in single- and double-well trapping geometries.
R E Barfknecht, A Foerster, N T Zinner
doaj   +1 more source

Diffraction of a Bose-Einstein condensate from a Magnetic Lattice on a Micro Chip [PDF]

open access: yes, 2005
We experimentally study the diffraction of a Bose-Einstein condensate from a magnetic lattice, realized by a set of 372 parallel gold conductors which are micro fabricated on a silicon substrate. The conductors generate a periodic potential for the atoms
A. Günther   +7 more
core   +1 more source

Excitation spectrum of a mixture of two Bose gases confined in a ring potential with interaction asymmetry

open access: yesNew Journal of Physics, 2018
We study the rotational properties of a two-component Bose–Einstein condensed gas of distinguishable atoms which are confined in a ring potential using both the mean-field approximation, as well as the method of diagonalization of the many-body ...
A Roussou   +7 more
doaj   +1 more source

Kondo Resonance of a Microwave Photon

open access: yes, 2012
We emulate renormalization group models, such as the Spin-Boson Hamiltonian or the anisotropic Kondo model, from a quantum optics perspective by considering a superconducting device.
E. T. Jaynes   +3 more
core   +1 more source

Spin-orbit coupled repulsive Fermi atoms in a one-dimensional optical lattice

open access: yesNew Journal of Physics, 2015
Motivated by recent experimental development, we investigate spin–orbit coupled repulsive Fermi atoms in a one-dimensional optical lattice. Using the density-matrix renormalization group method, we calculate the momentum distribution function, gap, and ...
Xiaofan Zhou   +4 more
doaj   +1 more source

Dynamics of Nonground-State Bose-Einstein Condensates

open access: yes, 2005
Dilute Bose gases, cooled down to low temperatures below the Bose-Einstein condensation temperature, form coherent ensembles described by the Gross-Pitaevskii equation. Stationary solutions to the latter are topological coherent modes.
A.S. Parkins   +11 more
core   +1 more source

Scale Separation Scheme for Simulating Superfluid Turbulence: Kelvin-Wave Cascade [PDF]

open access: yes, 2004
A Kolmogorov-type cascade of Kelvin waves--the distortion waves on vortex lines--plays a key part in the relaxation of superfluid turbulence at low temperatures.
B. V. Svistunov   +3 more
core   +3 more sources

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