Results 11 to 20 of about 373,146 (315)

Photodiode-based time zero determination for ultrafast electron microscopy

open access: yesStructural Dynamics, 2023
Pump-probe experiments in ultrafast electron microscopy require temporal overlap between the pump and probe pulses. Accurate measurements of the time delay between them allows for the determination of the time zero, the moment in time where both pulses ...
S. T. Kempers   +5 more
doaj   +1 more source

Quantifying Coherence [PDF]

open access: yesPhysical Review Letters, 2014
11 pages, close to published ...
Baumgratz, T, Cramer, M, Plenio, MB
openaire   +5 more sources

Accessible coherence and coherence distribution [PDF]

open access: yesPhysical Review A, 2017
The definition of accessible coherence is proposed. Through local measurement on the other subsystem and one way classical communication, a subsystem can access more coherence than the coherence of its density matrix. Based on the local accessible coherence, the part that can not be locally accessed is also studied, which we call it remaining coherence.
Ma, Teng   +4 more
openaire   +2 more sources

Quantifying the Coherence between Coherent States [PDF]

open access: yesPhysical Review Letters, 2017
8 pages, 2 ...
Tan, Kok Chuan   +3 more
openaire   +3 more sources

RF acceleration of ultracold electron bunches

open access: yesStructural 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   +5 more
doaj   +1 more source

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

open access: yesNew 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   +2 more
doaj   +1 more source

Common Coherence Witnesses and Common Coherent States [PDF]

open access: yesEntropy, 2021
We show the properties and characterization of coherence witnesses. We show methods for constructing coherence witnesses for an arbitrary coherent state. We investigate the problem of finding common coherence witnesses for certain class of states. We show that finitely many different witnesses W1,W2,⋯,Wn can detect some common coherent states if and ...
Bang-Hai Wang   +3 more
openaire   +5 more sources

Effects of Transcranial Direct Current Stimulation of Bilateral Supplementary Motor Area on the Lower Limb Motor Function in a Stroke Patient with Severe Motor Paralysis: A Case Study

open access: yesBrain Sciences, 2022
In patients with severe motor paralysis, increasing the excitability of the supplementary motor area (SMA) in the non-injured hemisphere contributes to the recovery of lower limb motor function.
Sora Ohnishi   +5 more
doaj   +1 more source

Quantum-coherent nanoscience [PDF]

open access: yesNature Nanotechnology, 2021
For the past three decades, nanoscience has widely affected many areas in physics, chemistry, and engineering, and has led to numerous fundamental discoveries as well as applications and products. Concurrently, quantum science and technology has developed into a cross-disciplinary research endeavour connecting these same areas and holds a burgeoning ...
Andreas J. Heinrich   +9 more
openaire   +6 more sources

Vegetation canopy height estimation in dynamic tropical landscapes with TanDEM‐X supported by GEDI data

open access: yesMethods in Ecology and Evolution, 2023
Vegetation canopy height is a relevant proxy for aboveground biomass, carbon stock, and biodiversity. Wall‐to‐wall information of canopy height with high spatial resolution and accuracy is not yet available on large scales.
Michael Schlund   +4 more
doaj   +1 more source

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