Results 31 to 40 of about 1,995,098 (263)

Exploiting coherence for quantum thermodynamic advantage [PDF]

New Journal of Physics, 2022
The introduction of the quantum analogue of a Carnot engine based on a bath comprising of particles with a small amount of coherence initiated an active line of research on the harnessing of different quantum resources for the enhancement of thermal ...
Kenza Hammam, Heather Leitch, Y. Hassouni, G. De Chiara   +3 more
semanticscholar   +1 more source

Frozen Quantum Coherence [PDF]

Physical Review Letters, 2015
6+4 pages, 1 figure; close to published ...
Bromley, Thomas R., Cianciaruso, Marco, Adesso, Gerardo   +2 more
openaire   +4 more sources

Quantum Oscillations without Quantum Coherence [PDF]

Physical Review Letters, 2003
We study numerically the damping of quantum oscillations and the increase of entropy with time in model spin systems decohered by a spin bath. In some experimentally relevant cases, the oscillations of considerable amplitude can persist long after the entropy has saturated near its maximum, i.e.
Dobrovitski, VV, De Raedt, HA, Katsnelson, MI, Harmon, BN   +3 more
openaire   +3 more sources

RF acceleration of ultracold electron bunches

Structural Dynamics, 2023
The ultrafast and ultracold electron source, based on laser cooling and trapping of atomic gas and its subsequent near-threshold two-step photoionization, is capable of generating electron bunches with a high transverse brightness at energies of roughly ...
D. F. J. Nijhof, T. C. H. de Raadt, J. V. Huijts, J. G. H. Franssen, P. H. A. Mutsaers, O. J. Luiten   +5 more
doaj   +1 more source

Collisional microwave heating and wall interaction of an ultracold plasma in a resonant microwave cavity

New Journal of Physics, 2022
Recently, we introduced a resonant microwave cavity as a diagnostic tool for the study of ultracold plasmas (UCPs). This diagnostic allows us to study the electron dynamics of UCPs non-destructively, very fast, and with high sensitivity by measuring the ...
M A W van Ninhuijs, J Beckers, O J Luiten   +2 more
doaj   +1 more source

Quantum thermodynamics and quantum coherence engines [PDF]

TURKISH JOURNAL OF PHYSICS, 2020
Comment: 38 pages, 22 ...
Tuncer, Aslı, Müstecaplioğlu, Özgür E.   +1 more
openaire   +2 more sources

Parameterized coherence measure

Results in Physics, 2023
Quantifying coherence is an essential endeavor for both quantum mechanical foundations and quantum technologies. We present a bona fide measure of quantum coherence by utilizing the Tsallis relative operator (α,β)-entropy.
Meng-Li Guo, Zhi-Xiang Jin, Jin-Min Liang, Bo Li, Shao-Ming Fei   +4 more
doaj   +1 more source

Colloquium: quantum coherence as a resource [PDF]

, 2016
The coherent superposition of states, in combination with the quantization of observables, represents one of the most fundamental features that mark the departure of quantum mechanics from the classical realm.
A. Streltsov, G. Adesso, M. Plenio
semanticscholar   +1 more source

Observation of PT -symmetric quantum coherence in a single-ion system

, 2021
Parity-time ($\mathcal{PT}$)-symmetric systems, featuring real eigenvalues despite their non-Hermitian nature, undergo spontaneous $\mathcal{PT}$ symmetry breaking at the exceptional point (EP).
Weichen Wang, Yanli Zhou, Huilai Zhang, Jie Zhang, Manchao Zhang, Yi Xie, Chun-wang Wu, Ting Chen, Bao-quan Ou, Wei Wu, H. Jing, Pingxing Chen   +11 more
semanticscholar   +1 more source

Superconducting-like Heat Current: Effective Cancellation of Current-Dissipation Trade-Off by Quantum Coherence. [PDF]

Physical Review Letters, 2020
Quantum coherence is a useful resource for increasing the speed and decreasing the irreversibility of quantum dynamics. Because of this feature, coherence is used to enhance the performance of various quantum information processing devices beyond the ...
H. Tajima, K. Funo
semanticscholar   +1 more source