Results 51 to 60 of about 19,046 (299)
Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
Quantum Gibbs distribution from dynamical thermalization in classical nonlinear lattices
New Journal of Physics, 2013 We study numerically time evolution in classical lattices with weak or moderate nonlinearity which leads to interactions between linear modes. Our results show that in a certain strength range a moderate nonlinearity generates a dynamical thermalization ...
Leonardo Ermann, Dima L Shepelyansky
doaj +1 more source
Optical Bloch oscillations in general waveguide lattices
, 2022 S.2632-2639We study the dynamics of excitations in general two-dimensional (2D) lattices with an external spatial linear potential. Analytical expressions for the energy eigenspectrum (Wannier-Stark ladder) and the eigenstates (Wannier-Stark states) of ...
Pertsch, T. +5 more
core +1 more source
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Quantum work of an optical lattice
Physical Review B, 2019 A classic example of a quantum quench concerns the release of a interacting Bose gas from an optical lattice. The local properties of quenches such as this have been extensively studied however the global properties of these non-equilibrium quantum systems have received far less attention.
Colin Rylands, Natan Andrei
openaire +3 more sources
Anderson localization in synthetic photonic lattices
Scientific Reports, 2017 Synthetic photonic lattices provide unique capabilities to realize theoretical concepts emerging in different fields of wave physics via the utilization of powerful photonic technologies.
Ilya D. Vatnik +4 more
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Superadiabatic and Speed Limited Quantum Driving of Bose-Einstein Condensates in Optical Lattices
, 2012 We implement optimal control schemes that approach the quantum speed limit as well as superadiabatic driving, achieving nearly perfect fidelity for a two-level quantum system realized with BECs in optical ...
CIAMPINI, DONATELLA, D. Ciampini
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Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Optical Lattice with Torus Topology [PDF]
Physical Review Letters, 2018 We propose an experimental scheme to construct an optical lattice where the atoms are confined to the surface of a torus. This construction can be realized with spatially shaped laser beams which could be realized with recently developed high resolution imaging techniques.
Kim, Hwanmun +3 more
openaire +3 more sources
Advanced Engineering Materials, EarlyView.Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao +3 more
wiley +1 more source