Results 101 to 110 of about 13,882 (271)

Quantum Discord and the Power of One Qubit [PDF]

open access: yesPhysical Review Letters, 2008
4 Pages, 1 ...
Datta, A, Shaji, A, Caves, C
openaire   +4 more sources

How discord underlies the noise resilience of quantum illumination

open access: yesNew Journal of Physics, 2016
The benefits of entanglement can outlast entanglement itself. In quantum illumination, entanglement is employed to better detect reflecting objects in environments so noisy that all entanglement is destroyed.
Christian Weedbrook   +4 more
doaj   +1 more source

Discord and quantum computational resources [PDF]

open access: yesPhysical Review A, 2013
Discordant states appear in a large number of quantum phenomena and seem to be a good indicator of divergence from classicality. While there is evidence that they are essential for a quantum algorithm to have an advantage over a classical one, their precise role is unclear.
openaire   +3 more sources

On the Origin of Solvent‐Dependent Ultraviolet–Visible Spectral Behavior of the Complexes [R3PAuCl]n (R = H, Me and Et, n = 1,2)

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
For the linear gold complexes R3PauCl, R = H, Me, Et, immersed in solvent, a dimer aggregation model is required to achieve good agreement between the calculated and experimental absorption spectra using a spin‐orbit/relativistic/solvent model approximation. The solvatochromic effect increases with the dielectric constant up to a saturation point.
Pedro Francisco Santiago   +2 more
wiley   +1 more source

Global quantum correlations in finite-size spin chains

open access: yesNew Journal of Physics, 2013
We perform an extensive study of the properties of global quantum correlations in finite-size one-dimensional quantum spin models at finite temperature. By adopting a recently proposed measure for global quantum correlations (Rulli and Sarandy 2011 Phys.
S Campbell   +6 more
doaj   +1 more source

Global Quantum Discord in Multipartite Systems

open access: yes, 2011
We propose a global measure for quantum correlations in multipartite systems, which is obtained by suitably recasting the quantum discord in terms of relative entropy and local von Neumann measurements.
C. C. Rulli   +2 more
core   +1 more source

Exploring the Regioselectivity of Diels–Alder Reactions of 2,6‐Disubstituted Benzoquinones through DFT Calculations

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
The effect of 19 substituents on the regioselectivity of Diels–Alder reactions is explored by quantum chemistry. Experimentally observed product distributions are compared favorably with calculated reaction barrier trends. Unlike interaction energies, the deformation energies corresponding to the two regioisomers differ significantly and follow the ...
Erik Kalla   +5 more
wiley   +1 more source

Geometric measure of quantum discord for entanglement of Dirac fields in noninertial frames

open access: yesPhysics Letters B, 2015
We investigate the geometric measure of quantum discord of all possible bipartite divisions of a tripartite system of Dirac fields in noninertial frames. As a comparison, we calculate the geometric measure of entanglement.
Wen-Chao Qiang, Lei Zhang
doaj   +1 more source

Quantum Correlations in non-Markovian Environments

open access: yes, 2010
We have studied the analytical Markovian and non-Markovian dynamics of quantum correlations, such as entanglement, quantum discord and Bell nonlocalities for three noisy qubits.
Ali   +47 more
core   +1 more source

Quantum computing: The power of discord [PDF]

open access: yesNature, 2011
Physicists have always thought quantum computing is hard because quantum states are incredibly fragile. But could noise and messiness actually help things along?
openaire   +3 more sources

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