Exploring quantum coherence, spin squeezing and entanglement in an extended spin-1/2 XX chain. (English) Zbl 07898024
MSC:
81P68
Found 91 Documents (Results 1–91)
Multiparameter quantum metrology and mode entanglement with spatially split nonclassical spin ensembles. (English) Zbl 07868917
tqix.pis: a toolbox for quantum dynamics simulation of spin ensembles in Dicke basis. (English) Zbl 07666761
Entanglement dynamics of a nano-mechanical resonator coupled to a central qubit. (English) Zbl 1508.81109
MSC:
81P40
Entanglement and \(\mathrm{U}(D)\)-spin squeezing in symmetric multi-qudit systems and applications to quantum phase transitions in Lipkin-Meshkov-Glick \(D\)-level atom models. (English) Zbl 1509.81064
MSC:
81P40
Entanglement and spin squeezing in the evolution of a resonant field in a Kell-like medium. (English) Zbl 1447.81039
Steady-state spin squeezing generated in diamond nanostructures coupled to carbon nanotubes. (English) Zbl 1435.81097
Spin squeezing in symmetric multiqubit states with two non-orthogonal Majorana spinors. (English) Zbl 1504.81094
Thermal entanglement properties in two qubits one-axis spin squeezing model with an external magnetic field. (English) Zbl 1412.81017
Various quantum correlations in two-qubit two-axis spin squeezing model in thermal equilibrium under an external magnetic field. (English) Zbl 1391.81029
Study of decoherence in a system of superconducting flux-qubits interacting with an ensemble of electrons. (English) Zbl 1367.81092
Enhanced spin squeezing and quantum entanglement near the critical point of the Jaynes-Cummings-Dicke model. (English) Zbl 1362.81012
Quantum correlation properties in two qubits one-axis spin squeezing model. (English) Zbl 1358.81030
Bistability and steady-state spin squeezing in diamond nanostructures controlled by a nanomechanical resonator. (English) Zbl 1380.81459
MSC:
81V10
Quantification of quantum entanglement in a multiparticle system of two-level atoms interacting with a squeezed vacuum state of the radiation field. (English) Zbl 1358.81028
Thermal entanglement properties in two kinds of two-qubit spin squeezing model. (English) Zbl 1358.81031
Quantum entanglement and spin squeezing of two species Bose-Einstein condensates. (English) Zbl 1348.81096
Quantum discord behaviors in two qubits spin squeezing model with intrinsic decoherence. (English) Zbl 1338.81048
Generating spin squeezed state in atomic Bose-Einstein condensate via electromagnetically induced transparency. (English) Zbl 1338.81233
Intelligent spin states constructed from \(\mathrm{SU}_{q}(2)\) coherent states. (English) Zbl 1331.81145
Entangled property of a multipartite state superposed by three Dicke states with arbitrary relative phases. (English) Zbl 1308.81108
MSC:
81R30
Generating spin squeezing state of two Bose-Einstein condensates with Josephson-like coupling. (English) Zbl 1304.81055
Generating multi-particle entangled state with matter-wave interferometer. (English) Zbl 1298.81018
MSC:
81P40
Controlling single-particle coherence and spin squeezing with stimulated Raman transition. (English) Zbl 1284.81167
MSC:
81R30
Quantum coherence and spin squeezing in Bose-Einstein condensate with Josephson-like coupling. (English) Zbl 1284.81160
MSC:
81R30
Bipartite and multipartite correlations of coupled qubits in a non-Markovian environment: hierarchy equation method. (English) Zbl 1287.81031
Spin squeezing in mixed model of the one-axis twisting and two-axis counter-twisting with decay. (English) Zbl 1282.81106
MSC:
81R30
Single-particle coherence and spin squeezing in four-qubit phase state. (English) Zbl 1282.81107
MSC:
81R30
Spin squeezing and quantum Fisher information in one-axis twisting model with decay. (English) Zbl 1274.81129
Phase coherence and spin squeezing in one-axis twisting model with decay. (English) Zbl 1274.81131
MSC:
81R30
Spin squeezing and quantum Fisher information in generalized two-axis twisting model. (English) Zbl 1274.81127
Single-particle coherence and SPIN squeezing in two-particle phase state. (English) Zbl 1274.81128
MSC:
81R30
Spin squeezing in superposition of four-qubit symmetric state and \(W\) states. (English) Zbl 1269.81013
Spin squeezing and entanglement via finite-dimensional discrete phase-space description. (English) Zbl 1267.81203
Spin squeezing and quantum Fisher information in the Lipkin-Meshkov-Glick model. (English) Zbl 1268.81092
Spin squeezing in 4-Qubit state superposed by GHZ state, \(W\) state and symmetric state. (English) Zbl 1264.81255
Thermal spin squeezing as a signature of thermal global entanglement in Heisenberg models. (English) Zbl 1264.82025
Controlling spin squeezing and quantum Fisher information with a strong external field. (English) Zbl 1209.94026
A conjecture on the use of quantum algebras in the treatment of discrete systems. (English) Zbl 1238.81141
Squeezing in a spin chain with site-dependent periodic and long-range interactions. (English) Zbl 1235.82010
Entanglement dynamics and spin-squeezing of the nonlinear Tavis-Cummings model mediated by a nonlinear binomial field. (English) Zbl 1205.81032
Realization of quantum non-demolition measurement of nuclear spin 1/2 of cold ytterbium atom. (English) Zbl 1191.81011
Lvovsky, Alexander (ed.), Quantum communication, measurement and computing (QCMC), 9th international conference, Calgary, Canada, 19–24 August 2008. Melville, NY: American Institute of Physics (AIP) (ISBN 978-0-7354-0647-6/hbk). AIP Conference Proceedings 1110, 313-316 (2009).
Generalized spin squeezing criteria: entanglement detection with collective measurements. (English) Zbl 1191.81132
Lvovsky, Alexander (ed.), Quantum communication, measurement and computing (QCMC), 9th international conference, Calgary, Canada, 19–24 August 2008. Melville, NY: American Institute of Physics (AIP) (ISBN 978-0-7354-0647-6/hbk). AIP Conference Proceedings 1110, 41-44 (2009).
Entanglement and squeezing of multi-qubit systems using a two-axis countertwisting Hamiltonian with an external field. (English) Zbl 1220.81138
Spin squeezing of the two two-level atoms interacting with a binomial field. (English) Zbl 1140.81333
Local invariants and pairwise entanglement in symmetric multiqubit system. (English) Zbl 1093.81521
MSC:
81P15
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