Results 51 to 60 of about 12,150 (260)

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

Ultratight confinement of atoms in a Rydberg empowered optical lattice [PDF]

open access: yesQuantum
Optical lattices serve as fundamental building blocks for atomic quantum technology. However, the scale and resolution of these lattices are diffraction-limited to the light wavelength.
Mohammadsadegh Khazali
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Synthetic-lattice enabled all-optical devices based on orbital angular momentum of light

open access: yesNature Communications, 2017
Design of all-optical devices rely on large numbers of optical elements and precise control makes this approach challenging. The authors demonstrate that optical devices such as quantum memory and optical filters can be realized using synthetic orbital ...
Xi-Wang Luo   +6 more
doaj   +1 more source

Cold bosons in optical lattices [PDF]

open access: yesLaser Physics, 2009
Basic properties of cold Bose atoms in optical lattices are reviewed. The main principles of correct self-consistent description of arbitrary systems with Bose-Einstein condensate are formulated. Theoretical methods for describing regular periodic lattices are presented. A special attention is paid to the discussion of Bose-atom properties in the frame
openaire   +2 more sources

Active Optical Lattice Filters [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Optical lattice filter structures including gains are introduced and analyzed. The photonic realization of the active, adaptive lattice filter is described. The algorithms which map between gains space and filter coefficients space are presented and studied. The sensitivities of filter parameters with respect to gains are derived and calculated.
Gary Evans   +6 more
openaire   +2 more sources

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Optical Hall response of bilayer graphene: Manifestation of chiral hybridized states in broken mirror symmetry lattices

open access: yesPhysical Review Research, 2020
Understanding the mechanisms governing the optical activity of layered-stacked materials is crucial to the design of devices aimed at manipulating light at the nanoscale.
V. Nam Do   +3 more
doaj   +1 more source

Chiral emission induced by optical Zeeman effect in polariton micropillars

open access: yesPhysical Review Research, 2021
The low sensitivity of photons to external magnetic fields is one of the major challenges for the engineering of photonic lattices with broken time-reversal symmetry.
B. Real   +9 more
doaj   +1 more source

Sisyphus optical lattice decelerator [PDF]

open access: yesPhysical Review A, 2019
11 pages, 11 ...
Chen, C.-C.   +4 more
openaire   +3 more sources

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