Results 71 to 80 of about 37,846 (265)

Analysis of Quantum Steering Measures

Entropy
The effect of quantum steering describes a possible action at a distance via local measurements. In the last few years, several criteria have been proposed to detect this type of correlation in quantum systems. However, there are few approaches presented
Lucas Maquedano, Ana C. S. Costa
doaj   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Geometric Aspects of Entanglement

Entropy
Quantum entanglement is a fundamental resource in quantum information theory, yet its general characterization and quantification remain challenging, especially in multipartite systems.
Lucio De Simone, Lorenzo Capra, Arthur Vesperini, Leonardo Rossi, Loris Di Cairano, Roberto Franzosi   +5 more
doaj   +1 more source

Advanced quantum noise correlations

New Journal of Physics, 2014
We use the quantum correlations of twin beams of light to investigate the fundamental addition of noise when one of the beams propagates through a fast-light medium based on phase-insensitive gain.
Ulrich Vogl, Ryan T Glasser, Jeremy B Clark, Quentin Glorieux, Tian Li, Neil V Corzo, Paul D Lett   +6 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Quantum Correlations in Nonlocal Boson Sampling [PDF]

Physical Review Letters, 2017
5 pages, 1 figure, comments are very ...
Shahandeh, Farid, Lund, Austin P., Ralph, Timothy C.   +2 more
openaire   +6 more sources

Spin-orbital excitations encoding the magnetic phase transition in the van der Waals antiferromagnet FePS3

npj Quantum Materials
Van der Waals (vdW) materials are featuring intertwined electronic order and collective phenomena. Elucidating the dynamics of the elementary excitations within the fundamental electronic degrees of freedom is of paramount importance.
Yuan Wei, Yi Tseng, Hebatalla Elnaggar, Wenliang Zhang, Teguh Citra Asmara, Eugenio Paris, Gabriele Domaine, Vladimir N. Strocov, Luc Testa, Virgile Favre, Mario Di Luca, Mitali Banerjee, Andrew R. Wildes, Frank M. F. de Groot, Henrik M. Rønnow, Thorsten Schmitt   +15 more
doaj   +1 more source

Multipartite quantum correlations in open quantum systems

New Journal of Physics, 2013
In this paper, we present a measure of quantum correlation for a multipartite system, defined as the sum of the correlations for all possible partitions.
ZhiHao Ma, ZhiHua Chen, Felipe Fernandes Fanchini   +2 more
doaj   +1 more source

Correlations in Two-Qubit Systems under Non-Dissipative Decoherence

Axioms, 2020
We built a new set of suitable measures of correlations for bipartite quantum states based upon a recently introduced theoretical framework [Bussandri et al. in Quantum Inf. Proc. 18:57, 2019].
Diego G. Bussandri, Tristán M. Osán, Pedro W. Lamberti, Ana P. Majtey   +3 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source