Tighter Constraints of Quantum Correlations Among Multipartite Systems
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-021-04770-8
Abstract: We provide a characterization of multipartite systems constraints in terms of quantum correlations. By using the Hamming weight of the binary vectors associated with the subsystems, we give the α th power of monogamy and… read more here.
Keywords: multipartite systems; quantum correlations; tighter constraints; correlations among ... See more keywords
Monogamy and Polygamy Relations of Quantum Correlations for Multipartite Systems
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-022-04971-9
Abstract: We study the monogamy and polygamy inequalities of quantum correlations in arbitrary dimensional multipartite quantum systems. We first derive the monogamy inequality of the α th 0 ≤ α ≤ r 2 , r ≥… read more here.
Keywords: relations quantum; correlations multipartite; multipartite systems; polygamy relations ... See more keywords
Tighter Constraints of Multipartite Systems in terms of General Quantum Correlations
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DOI: 10.1007/s10773-022-04984-4
Abstract: Monogamy and polygamy relations characterize the quantum correlation distributions among multipartite quantum systems. We investigate the monogamy and polygamy relations satisfied by measures of general quantum correlation. By using the Hamming weight, we derive new… read more here.
Keywords: general quantum; quantum correlations; monogamy polygamy; polygamy relations ... See more keywords
Evolution of quantum correlations in the open quantum systems consisting of two coupled oscillators
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DOI: 10.1007/s11128-017-1556-4
Abstract: The open quantum systems consisting of coupled and uncoupled asymmetric oscillators are considered with an initial quantum-dot trapped-ion coherent state. The quantum correlations between spatial modes of this trapped ion are examined to find their… read more here.
Keywords: quantum systems; temperature; discord; quantum correlations ... See more keywords
Quantum correlations and decoherence dynamics for a qutrit–qutrit system under random telegraph noise
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DOI: 10.1007/s11128-017-1645-4
Abstract: We analyze the effect of a classical random telegraph noise on the dynamics of quantum correlations and decoherence between two non-interacting spin-qutrit particles, initially entangled, and coupled either to independent sources or to a common… read more here.
Keywords: random telegraph; correlations decoherence; quantum correlations; telegraph noise ... See more keywords
Tripartite and bipartite quantum correlations in the XXZ spin chain with three-site interaction
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1730-8
Abstract: Tripartite and bipartite quantum correlations in the three-qubit XXZ Heisenberg spin chain with two types of three-site interactions and an external magnetic field are investigated. We show that the increase in XZY − YZX interaction can enhance… read more here.
Keywords: quantum; bipartite quantum; tripartite bipartite; quantum correlations ... See more keywords
Quantum correlations for bipartite continuous-variable systems
Sign Up to like & getrecommendations! Published in 2018 at "Quantum Information Processing"
DOI: 10.1007/s11128-018-1866-1
Abstract: Two quantum correlations Q and $$Q_\mathcal P$$QP for $$(m+n)$$(m+n)-mode continuous-variable systems are introduced in terms of average distance between the reduced states under the local Gaussian positive operator-valued measurements, and analytical formulas of these quantum… read more here.
Keywords: continuous variable; quantum correlations; bipartite continuous; correlations bipartite ... See more keywords
Strong polygamy of multi-party q-expected quantum correlations
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DOI: 10.1007/s11128-020-02974-1
Abstract: We show that the polygamous nature of multi-party quantum correlations can be characterized in a stronger form based on Tsallis q -entropy and q -expectation value; we establish a class of strong polygamy inequalities of… read more here.
Keywords: quantum correlations; multi party; party; strong polygamy ... See more keywords
Quantum correlations as probes of chaos and ergodicity
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DOI: 10.1016/j.optcom.2018.03.069
Abstract: Abstract Long-time average behavior of quantum correlations in a multi-qubit system, collectively modeled as a kicked top, is addressed here. The behavior of dynamical generation of quantum correlations such as entanglement, discord, concurrence, as previously… read more here.
Keywords: kicked top; quantum; chaos ergodicity; quantum correlations ... See more keywords
Quantum correlations in the extended cluster spin-1/2 XXZ chain
Sign Up to like & getrecommendations! Published in 2018 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2018.08.156
Abstract: Abstract We study the ground state phase diagram of the extended cluster spin-1/2 XXZ chain from quantum correlations point of view. Our model is equivalent to a one-dimensional (1D) spin-1/2 XXZ model with three-spin interaction… read more here.
Keywords: extended cluster; quantum correlations; cluster spin; spin ... See more keywords
Almost synchronous quantum correlations
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Mathematical Physics"
DOI: 10.1063/5.0056512
Abstract: The study of quantum correlation sets initiated by Tsirelson in the 1980s and originally motivated by questions in the foundations of quantum mechanics has more recently been tied to questions in quantum cryptography, complexity theory,… read more here.
Keywords: correlation; theory; almost synchronous; synchronous quantum ... See more keywords