Results 41 to 50 of about 180,621 (313)

Shortcuts to adiabaticity for Lévy processes in harmonic traps

open access: yesPhysical Review E, 2022
15 pages, 7 ...
Baldovin, Marco   +2 more
openaire   +4 more sources

Cosmological consequences of an adiabatic matter creation process

open access: yes, 2016
In this paper we investigate the cosmological consequences of a continuous matter creation associated with the production of particles by the gravitational field acting on the quantum vacuum.
Nunes, Rafael C., Pan, Supriya
core   +1 more source

Non-adiabatic conditional geometric phase shift with NMR [PDF]

open access: yes, 2001
Conditional geometric phase shift gate, which is fault tolerate to certain errors due to its geometric property, is made by NMR technique recently under adiabatic condition.
Keiji, Matsumoto, Xiang-Bin, Wang
core   +2 more sources

Quantum search by parallel eigenvalue adiabatic passage

open access: yes, 2008
We propose a strategy to achieve the Grover search algorithm by adiabatic passage in a very efficient way. An adiabatic process can be characterized by the instantaneous eigenvalues of the pertaining Hamiltonian, some of which form a gap.
Cerf, N. J., Daems, D., Guérin, S.
core   +2 more sources

Production Efficiency of Ultracold Feshbach Molecules in Bosonic and Fermionic Systems [PDF]

open access: yes, 2004
We investigate the production efficiency of ultracold molecules in bosonic $^{85}$Rb and fermionic $^{40}$K when the magnetic field is swept across a Feshbach resonance.
A. C. Wilson   +8 more
core   +4 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

The Structural Refinement of Commercial‐Purity Copper Processed by Equal Channel Angular Pressing with Low Strain Amplitude

open access: yesAdvanced Engineering Materials, EarlyView.
Equal channel angular pressing of commercial pure copper under low strain amplitude (≈0.48) induces concurrent continuous and localized discontinuous dynamic recrystallization, forming a duplex structure influenced by strain heterogeneity and recovery. Moderate hardening after 4–12 passes results from progressive high‐angle grain boundary formation via
Paula Cibely Alves Flausino   +6 more
wiley   +1 more source

Characteristic of an adiabatic charging reversible circuit with a Lithium ion capacitor as an energy storage device

open access: yesResults in Physics, 2018
An adiabatic reversible circuit was designed for charging a Lithium ion capacitor. The duty ratio of the switching transistors is digitally controlled by a microprocessor.
Shunji Nakata
doaj   +1 more source

Shortcuts to Adiabaticity for Optical Beam Propagation in Nonlinear Gradient Refractive-Index Media

open access: yesEntropy, 2020
In recent years, the concept of “shortcuts to adiabaticity" has been originally proposed to speed up sufficiently slow adiabatic process in various quantum systems without final excitation.
Qian Kong, Huimin Ying, Xi Chen
doaj   +1 more source

On the use of cross polarization in solid-state NMR: 1H spin-lock versus adiabatic demagnetization in the rotating frame

open access: yesMagnetic Resonance Letters, 2022
Cross polarization (CP) is a widely used solid-state nuclear magnetic resonance (NMR) technique for enhancing the polarization of dilute S spins from much larger polarization of abundant I spins such as 1H.
Yuchen Li   +4 more
doaj   +1 more source

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