Results 11 to 20 of about 1,338,519 (291)

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

Explanatory Coherence and the Impossibility of Confirmation by Coherence [PDF]

open access: yesPhilosophy of Science, 2021
The coherence of independent reports provides a strong reason to believe that the reports are true. This plausible claim has come under attack from recent work in Bayesian epistemology. This work shows that, under certain probabilistic conditions, coherence cannot increase the probability of the target claim.
openaire   +1 more source

Partially coherent sources with circular coherence [PDF]

open access: yesOptics Letters, 2017
A new class of partially coherent light sources is introduced. At the source plane, they exhibit perfect coherence along any annulus that is concentric to the source center. Between two points at different distances from the center, coherence can be partial or even vanishing.
Santarsiero, Massimo   +5 more
openaire   +3 more sources

Coherence fraction

open access: yesQuantum Information Processing, 2019
The concept of entanglement fraction is generalized to define coherence fraction of a quantum state. Precisely, it quantifies the proximity of a quantum state to maximally coherent state and it can be used as a measure of coherence. Coherence fraction has a connection with $l_1$-norm coherence and provides the criteria of coherence distillability ...
Sumana Karmakar   +4 more
openaire   +2 more sources

Bicartesian Coherence

open access: yesStudia Logica, 2002
Coherence is demonstrated for categories with binary products and sums, but without the terminal and the initial object, and without distribution. This coherence amounts to the existence of a faithful functor from a free category with binary products and sums to the category of relations on finite ordinals.
Kosta Dosen, Zoran Petric
openaire   +3 more sources

Time-of-flight electron energy loss spectroscopy using TM110 deflection cavities

open access: yesStructural Dynamics, 2016
We demonstrate the use of two TM110 resonant cavities to generate ultrashort electron pulses and subsequently measure electron energy losses in a time-of-flight type of setup.
W. Verhoeven   +6 more
doaj   +1 more source

Research Progress on the Twisted Partially Coherent Beams

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2020
Under the action of twist phase, partially coherent beams display their unique advantages in many applications fields, such as beam shaping, particle trapping, optical imaging, free-space communications, and so on.
WANG Haiyun; LIU Lin; CAI Yangjian
doaj   +1 more source

Time-of-flight electron energy loss spectroscopy by longitudinal phase space manipulation with microwave cavities

open access: yesStructural Dynamics, 2018
The possibility to perform high-resolution time-resolved electron energy loss spectroscopy has the potential to impact a broad range of research fields. Resolving small energy losses with ultrashort electron pulses, however, is an enormous challenge due ...
W. Verhoeven   +5 more
doaj   +1 more source

COHERENCE AND ELICITABILITY [PDF]

open access: yesMathematical Finance, 2014
The risk of a financial position is usually summarized by a risk measure. As this risk measure has to be estimated from historical data, it is important to be able to verify and compare competing estimation procedures. In statistical decision theory, risk measures for which such verification and comparison is possible, are called elicitable.
openaire   +3 more sources

Quantum criticality at high temperature revealed by spin echo

open access: yesNew Journal of Physics, 2013
Quantum criticality occurs when the ground state of a macroscopic quantum system changes abruptly on tuning system parameters. It is an important indicator of new quantum matters emerging.
Shao-Wen Chen   +2 more
doaj   +1 more source

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