Results 21 to 30 of about 389,331 (298)
New 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
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Phase diagram for a Bose-Einstein condensate moving in an optical lattice [PDF]
, 2007 The stability of superfluid currents in a system of ultracold bosons was studied using a moving optical lattice. Superfluid currents in a very weak lattice become unstable when their momentum exceeds 0.5 recoil momentum.
Campbell, Gretchen K. +5 more
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Fast optical transport of ultracold molecules over long distances
New 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
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Optical properties of a Moiré-lattice photonic crystal fiber with controllable magic angle
Results in Physics, 2023 Inspired by the unique electrical properties of bilayer-twisted graphene with moiré superlattice, the light manipulation using photonic moiré structures has attracted tremendous research interest.
Jingmin Zhou +5 more
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Dynamically reconfigurable optical lattices
Optics Express, 2005 We present a theoretical framework for two approaches of generating light-efficient optical lattices via a generic Fourier-filtering operation. We demonstrate how lattice geometry can be dynamically changed from fully discrete to interconnected optical arrays conveniently achieved with virtually zero computational resources.
Rodrigo, Peter John +2 more
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Thermoelectricity Modeling with Cold Dipole Atoms in Aubry Phase of Optical Lattice
Applied 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
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New 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
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An accordion superlattice for controlling atom separation in optical potentials
New 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
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, 2015 The dynamics of a Bose-Einstein condensate are examined numerically in the presence of a one-dimensional bichromatic optical lattice with external harmonic confinement. The condensate is excited by a focusing red laser.
Sakhel, Asaad R.
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Dielectric Meta-lattices with Tunable Reflectivity
Journal of Mathematical and Fundamental Sciences, 2022 We report a study on the reflective performance of a dielectric meta-lattice formed by a one-dimensional periodic arrangement of silicon nanotubes. It was found that switching from transparent state to reflective state can be done by simply varying one ...
Suhandoko Dwi Isro +2 more
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