Results 11 to 20 of about 2,670,241 (308)
Micromachines, 2020 The industrial particle sensor market lacks simple, easy to use, low cost yet robust, safe and fast response solutions. Towards development of such a sensor, for in-line use in micro channels under continuous flow conditions, this work introduces static ...
Jesse Ross-Jones +7 more
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Optical deceleration of atomic hydrogen
New Journal of Physics, 2023 We demonstrate control over the motional degrees of freedom of a cryogenic hydrogen atomic beam using an accelerating optical lattice. For our method, we load metastable atoms from a cryogenic beam into a moving optical lattice, decelerate the lattice ...
S F Cooper +4 more
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Dipolar Molecules in Optical Lattices [PDF]
Physical Review Letters, 2012 We study the extended Bose--Hubbard model describing an ultracold gas of dipolar molecules in an optical lattice, taking into account all on-site and nearest-neighbor interactions, including occupation-dependent tunneling and pair tunneling terms. Using exact diagonalization and the multiscale entanglement renormalization ansatz, we show that these ...
Sowiński, Tomasz +4 more
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Lattice Boltzmann phase-field modeling of thermocapillary flows in a confined microchannel [PDF]
, 2014 To understand how thermocapillary forces manipulate the droplet motion in a confined microchannel, a lattice Boltzmann phase-field model is developed to simulate immiscible thermocapillary flows with consideration of fluid–surface interactions.
Valocchi, Albert J. +3 more
core +4 more sources
Optical lattice on an atom chip [PDF]
Optics Letters, 2009 Optical dipole traps and atom chips are two very powerful tools for the quantum manipulation of neutral atoms. We demonstrate that both methods can be combined by creating an optical lattice potential on an atom chip. A red-detuned laser beam is retro-reflected using the atom chip surface as a high-quality mirror, generating a vertical array of purely ...
Gallego, D. +4 more
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Rectifying Fluctuations in an Optical Lattice [PDF]
Physical Review Letters, 2004 We have realized a Brownian motor by using cold atoms in a dissipative optical lattice as a model system. In our experiment the optical potential is spatially symmetric and the time-symmetry of the system is broken by applying appropriate zero-mean ac forces. We identify a regime of rectification of forces and a regime of rectification of fluctuations,
Jones, PH, Goonasekera, M, Renzoni, F
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Imbalanced antiferromagnet in an optical lattice [PDF]
Physical Review A, 2010 We study the rich properties of the imbalanced antiferromagnet in an optical lattice. We present its phase diagram, discuss spin waves and explore the emergence of topological excitations in two dimensions, known as merons, which are responsible for a Kosterlitz-Thouless transition that has never unambiguously been observed.
Koetsier, Arnaud +2 more
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Photoionization of Rydberg atoms in optical lattices
New Journal of Physics, 2021 We develop a formalism for photoionization (PI) and potential energy curves (PECs) of Rydberg atoms in ponderomotive optical lattices and apply it to examples covering several regimes of the optical-lattice depth.
R Cardman +4 more
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On the formation of antihydrogen beams using travelling optical lattices
New Journal of Physics, 2021 The production of beams of antihydrogen atoms using the dipole force provided by a travelling optical lattice to accelerate a sample of the anti-atoms held in a magnetic gradient atom trap is investigated.
N Madsen, M Charlton
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Electronic Structure and Optical Properties of Cu2ZnSnS4 under Stress Effect
Crystals, 2022 By using the pseudopotential plane-wave method of first principles based on density functional theory, the band structure, density of states and optical properties of Cu2ZnSnS4 under isotropic stress are calculated and analyzed.
Xiufan Yang +5 more
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