Results 21 to 30 of about 88,877 (264)

Thermoelectricity Modeling with Cold Dipole Atoms in Aubry Phase of Optical Lattice

open access: yesApplied Sciences, 2020
We study analytically and numerically the thermoelectric properties of a chain of cold atoms with dipole-dipole interactions placed in an optical periodic potential. At small potential amplitudes the chain slides freely that corresponds to the Kolmogorov-
Oleg V. Zhirov   +2 more
doaj   +1 more source

Fast optical transport of ultracold molecules over long distances

open access: yesNew Journal of Physics, 2022
Optically trapped laser-cooled polar molecules hold promise for new science and technology in quantum information and quantum simulation. Large numerical aperture optical access and long trap lifetimes are needed for many studies, but these requirements ...
Yicheng Bao   +8 more
doaj   +1 more source

Formation controllable two-dimensional surface optical lattices

open access: yesJournal of Taibah University for Science, 2023
The evanescent light field created by total internal reflection at a dielectric-vacuum interface has tight spatial confinement and high local intensity.
S. Al-Awfi
doaj   +1 more source

Synthetic gauge fields for lattices with multi-orbital unit cells: routes towards a π-flux dice lattice with flat bands

open access: yesNew Journal of Physics, 2018
We propose a general strategy for generating synthetic magnetic fields in complex lattices with non-trivial connectivity based on light–matter coupling in cold atomic gases. Our approach starts from an underlying optical flux lattice in which a synthetic
Gunnar Möller, Nigel R Cooper
doaj   +1 more source

Mapping atomic trapping in an optical superlattice onto the libration of a planar rotor in electric fields

open access: yesNew Journal of Physics, 2023
We show that two seemingly unrelated problems—the trapping of an atom in an optical superlattice (OSL) and the libration of a planar rigid rotor in combined electric and optical fields (PR) – have isomorphic Hamiltonians.
Marjan Mirahmadi   +3 more
doaj   +1 more source

A disordered insulator in an optical lattice [PDF]

open access: yesNature Physics, 2010
Disorder can profoundly affect the transport properties of a wide range of quantum materials. Presently, there is significant disagreement regarding the effect of disorder on transport in the disordered Bose-Hubbard (DBH) model, which is the paradigm used to theoretically study disorder in strongly correlated bosonic systems.
Pasienski, M.   +3 more
openaire   +2 more sources

An accordion superlattice for controlling atom separation in optical potentials

open access: yesNew Journal of Physics, 2023
We propose a method for separating trapped atoms in optical lattices by large distances. The key idea is the cyclic transfer of atoms between two lattices of variable spacing, known as accordion lattices, each covering at least a factor of two in lattice
Simon Wili   +2 more
doaj   +1 more source

Optical conductivity with holographic lattices [PDF]

open access: yesJournal of High Energy Physics, 2012
We add a gravitational background lattice to the simplest holographic model of matter at finite density and calculate the optical conductivity. With the lattice, the zero frequency delta function found in previous calculations (resulting from translation invariance) is broadened and the DC conductivity is finite.
Horowitz, Gary T   +2 more
openaire   +3 more sources

Betatron emission from relativistic electrons in a high intensity optical lattice

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2013
We describe theoretically and numerically the interaction of a laser- or LINAC-accelerated beam of relativistic electrons with a high intensity optical lattice, resulting from the superposition of two transverse laser pulses.
I. A. Andriyash   +3 more
doaj   +1 more source

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