Results 31 to 40 of about 1,822,262 (208)

Are quantum correlations symmetric?

open access: yesQuantum Information and Computation, 2010
We provide operational definition of asymmetry of entanglement: An entangled state contains asymmetric entanglement if its subsystems can not be exchanged (swapped) by means of local operations and classical communication. We show that in general states have asymmetric entanglement.
Karol Horodecki   +2 more
openaire   +3 more sources

Quantum correlations and number theory [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
8 pages, 2 ...
Boos, H. E.   +3 more
openaire   +2 more sources

Building with quantum correlations

open access: yesQuantum Information Processing, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Timpson, C, Brown, H
openaire   +4 more sources

Converting Coherence to Quantum Correlations [PDF]

open access: yesPhysical Review Letters, 2016
Recent results in quantum information theory characterize quantum coherence in the context of resource theories. Here we study the relation between quantum coherence and quantum discord, a kind of quantum correlation which appears even in non-entangled states.
Ma J.   +4 more
openaire   +7 more sources

Quantum Walks of Correlated Photons [PDF]

open access: yesScience, 2010
A Correlated Quantum Walk Random walks are powerful tools for modeling statistical events. The analogous quantum walk involves particles tunneling between available sites. Peruzzo et al. (p. 1500 ; see the Perspective by
Peruzzo A.   +13 more
openaire   +4 more sources

Decoherence and correlations in systems of trapped ultra-cold quantum gases [PDF]

open access: yes, 2005
Since the achievement of Bose-Einstein condensation (BEC), the progress in matterwave physics has been immense. Among the many recent achievements there is the miniaturization of atom traps, demonstration of the superfluid-Mott insulator quantum-phase
Schroll, Christian
core   +1 more source

Bounding Temporal Quantum Correlations [PDF]

open access: yesPhysical Review Letters, 2013
Sequential measurements on a single particle play an important role in fundamental tests of quantum mechanics. We provide a general method to analyze temporal quantum correlations, which allows us to compute the maximal correlations for sequential measurements in quantum mechanics.
Costantino Budroni   +3 more
openaire   +4 more sources

Large spatial extension of the zero-energy Yu–Shiba–Rusinov state in a magnetic field

open access: yesNature Communications, 2020
Local magnetic moments coupled to superconductors can form subgap Yu-Shiba-Rusinov states. Here the authors show that Shiba states made with an InAs nanowire quantum dot have large spatial extent, which is beneficial for making Shiba chains that are ...
Zoltán Scherübl   +10 more
doaj   +1 more source

Spatial Entanglement of Fermions in One-Dimensional Quantum Dots

open access: yesEntropy, 2021
The time-dependent quantum Monte Carlo method for fermions is introduced and applied in the calculation of the entanglement of electrons in one-dimensional quantum dots with several spin-polarized and spin-compensated electron configurations.
Ivan P. Christov
doaj   +1 more source

Verifying the Quantumness of Bipartite Correlations [PDF]

open access: yesPhysical Review Letters, 2016
Entanglement is at the heart of most quantum information tasks, and therefore considerable effort has been made to find methods of deciding the entanglement content of a given bipartite quantum state. Here, we prove a fundamental limitation to deciding if an unknown state is entangled or not: we show that any quantum measurement which can answer this ...
Carmeli, Claudio   +4 more
openaire   +6 more sources

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