Results 21 to 30 of about 46 (45)
Entanglement driven phase transitions in spin–orbital models
New Journal of Physics, 2015 To demonstrate the role played by the von Neumann entropy (vNE) spectra in quantum phase transitions we investigate the one-dimensional anisotropic SU(2) $\otimes \mathrm{XXZ}$ spin–orbital model with negative exchange parameter. In the case of classical
Wen-Long You +2 more
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A quantitative theory of coherent delocalization
New Journal of Physics, 2014 We define a quantitative measure of coherent delocalization; similarly to the concept of entanglement measures, we require that a measure of coherent delocalization may never increase under processes that do not create coherent superpositions.
Federico Levi, Florian Mintert
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Detecting metrologically useful entanglement in the vicinity of Dicke states
New Journal of Physics, 2015 We present a method to verify the metrological usefulness of noisy Dicke states of a particle ensemble with only a few collective measurements, without the need for a direct measurement of the sensitivity.
Iagoba Apellaniz +4 more
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Precise space–time positioning for entanglement harvesting
New Journal of Physics, 2016 We explore the crucial role of relative space–time positioning between the two detectors in an operational two-party entanglement-harvesting protocol.
Eduardo Martín-Martínez +1 more
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Quantifying spatial correlations of general quantum dynamics
New Journal of Physics, 2015 Understanding the role of correlations in quantum systems is both a fundamental challenge as well as of high practical relevance for the control of multi-particle quantum systems.
Ángel Rivas, Markus Müller
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Irreducible many-body correlations in topologically ordered systems
New Journal of Physics, 2016 Topologically ordered systems exhibit large-scale correlation in their ground states, which may be characterized by quantities such as topological entanglement entropy.
Yang Liu, Bei Zeng, D L Zhou
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No-go theorem for boson condensation in topologically ordered quantum liquids
New Journal of Physics, 2016 Certain phase transitions between topological quantum field theories (TQFTs) are driven by the condensation of bosonic anyons. However, as bosons in a TQFT are themselves nontrivial collective excitations, there can be topological obstructions that ...
Titus Neupert +4 more
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Geometric entanglement in the Laughlin wave function
New Journal of Physics, 2017 We study numerically the geometric entanglement in the Laughlin wave function, which is of great importance in condensed matter physics. The Slater determinant having the largest overlap with the Laughlin wave function is constructed by an iterative ...
Jiang-Min Zhang, Yu Liu
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Entanglement Property of Tripartite GHZ State in Different Accelerating Observer Frames. [PDF]
Entropy (Basel), 2022 Dong Q +3 more
europepmc +1 more source
Common Coherence Witnesses and Common Coherent States. [PDF]
Entropy (Basel), 2021 Wang BH, Ding ZH, Ma Z, Fei SM.
europepmc +1 more source