Results 71 to 80 of about 17,173,630 (326)
Shortcuts to quantum adiabatic processes
Journal of Physics: Conference Series, 2011 We review different ways to accelerate adiabatic processes in cold atom physics and atomic state preparation. Trap expansions or contractions and atomic transport may be accelerated by an invariant-based inverse engineering approach. Berry's inverse engineering method is also applied to produce fast versions of adiabatic passage methods.
Xi Chen +6 more
openaire +2 more sources
NUMERICAL ANALYSIS OF GAS-DROPLET CHEMICAL PLUG-FLOW REACTOR OPERATING MODES
Вестник Донского государственного технического университета, 2018 A one-dimensional model and numerical solution of the non-stationary modes of the adiabatic gas-droplet chemical plug-flow reactor are considered. The developed approach permits to investigate processes of heat and mass transfer in the laminar flow of ...
Valeria V. Pritchina +2 more
doaj
Advanced Optical Integration Processes for Photonic‐Integrated Circuit Packaging
Advanced Materials Technologies, EarlyView.Photonic integrated chip packaging is a growing technology that helps make devices faster, more efficient, and more compact by using light instead of electricity. This review highlights recent progress in making these chips work better at different levels, discusses current challenges like heat and alignment, and looks at future possibilities for ...
Keuntae Baek +4 more
wiley +1 more source
Entanglement in Spatial Adiabatic Processes for Interacting Atoms [PDF]
Few-Body Systems, 2018 9 pages, 3 ...
Albert Benseny +2 more
openaire +4 more sources
One-Way Localized Adiabatic Passage in an Acoustic System.
Physical Review Letters, 2019 Stimulated adiabatic passage utilizes radiation pulses to efficiently and selectively transfer population between quantum states, via an intermediate state that is normally decaying.
Ya-Xi Shen +5 more
semanticscholar +1 more source
Time dependence of adiabatic particle number [PDF]
, 2016 We consider quantum field theoretic systems subject to a time-dependent perturbation, and discuss the question of defining a time dependent particle number not just at asymptotic early and late times, but also during the perturbation.
R. Dabrowski, G. Dunne
semanticscholar +1 more source
Quantum heat engine based on quantum interferometry: The SU(1,1) Otto cycle
Physical Review ResearchWe present a quantum heat engine based on a quantum Otto cycle whose working substance reproduces the same outcomes as an SU(1,1) interference process at the end of each adiabatic transformation.
Alessandro Ferreri +4 more
doaj +1 more source
Natural convection effects on TNT solidification inside a shaped charge mold
Defence Technology, 2022 High Explosive Anti-Tank (HEAT) warheads and ammunitions are frequently produced by explosive casting inside an axis-symmetric mold with an inverted conical geometry in the basis. In order to prevent manufacturing defects, the solidification process must
Çiğdem Susantez +2 more
doaj
How to Manufacture Photonic Metamaterials
Advanced Materials Technologies, EarlyView.Metamaterials boast applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, but these applications haven’t been exploited in earnest and the market for them hasn’t grown much likely because facile and economical methods for fabricating them without defect has not emerged.
Apurba Paul, Gregory Timp
wiley +1 more source
Geometric orbital magnetization in adiabatic processes
Physical Review B, 2019 We consider periodic adiabatic processes of gapped many-body spinless electrons. We find an additional contribution to the orbital magnetization due to the adiabatic time evolution, dubbed \textit{geometric} orbital magnetization, which can be expressed as derivative of the many-body Berry phase with respect to an external magnetic field.
Seishiro Ono +2 more
openaire +4 more sources