Results 31 to 40 of about 19,046 (299)
Feshbach resonances in an optical lattice [PDF]
Physical Review A, 2005 We present the theory for ultracold atomic gases in an optical lattice near a Feshbach resonance. In the single-band approximation the theory describes atoms and molecules which can both tunnel through the lattice. Moreover, an avoided crossing between the two-atom and the molecular states occurs at every site.
Dickerscheid, D.B.M. +3 more
openaire +5 more sources
Photonics, 2023 Optical skyrmion lattices play an important role in photonic system design and have potential applications in optical transmission and storage. In this study, we propose a novel metasurface approach to calculating the dependence of the multi-beam ...
Gao Tang +5 more
doaj +1 more source
Fractionalized topological defects in optical lattices
New Journal of Physics, 2015 Topological objects are interesting topics in various fields of physics ranging from condensed matter physics to the grand unified and superstring theories. Among those, ultracold atoms provide a playground to study the complex topological objects.
Xing-Hai Zhang +3 more
doaj +1 more source
Stripe-like quasi-nondiffracting optical lattices
, 2011 We introduce stripe-like quasi-nondiffracting lattices that can be generated via spatial spectrum engineering. The complexity of the spatial shapes of such lattices and the distance of their almost diffractionless propagation depend on the width of their
Kartashov, Yaroslav +10 more
core +2 more sources
Antiferromagnetic noise correlations in optical lattices [PDF]
, 2009 We analyze how noise correlations probed by time-of-flight experiments reveal antiferromagnetic (AF) correlations of fermionic atoms in two-dimensional and three-dimensional optical lattices.
Bruun, Georg, +11 more
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Optical conductivity with holographic lattices [PDF]
Journal 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
Non-diffracting optical Bloch oscillations in hexagonal photonic lattices
, 2017 Light beams undergoing optical Bloch oscillations (OBOs) in two-dimensional (2D) photonic lattices suffer from severe diffraction along the perpendicular direction to the oscillation plane.
Zhang, Peng +13 more
core +1 more source
On the origin of the optical vortex lattices in a nematic liquid crystal light valve [PDF]
, 2019 Optical vortices and lattices of these are attracting the attention of the scientific community because of their applications in various fields of optical processing, communications, enhanced imaging systems, and bio-inspired devices.
Calisto, Enrique +3 more
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Single-atom imaging of fermions in a quantum-gas microscope
, 2015 The authors acknowledge support by EU (ERC-StG FERMILATT, SIQS, Marie Curie Fellowship to E.H.), EPSRC, Scottish Universities Physics Alliance (SUPA).Single-atom-resolved detection in optical lattices using quantum-gas microscopes has enabled a new ...
Bruno Peaudecerf +13 more
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Photonic crystals for matter waves: Bose-Einstein condensates in optical lattices [PDF]
, 2015 We overview our recent theoretical studies on nonlinear atom optics of the Bose-Einstein condensates (BECs) loaded into optical lattices. In particular, we describe the band-gap spectrum and nonlinear localization of BECs in one- and two-dimensional ...
Ostrovskaya, Elena, Kivshar, Yuri
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