The Effect of the Multi‐Environment for Quantum Correlation: Geometry Discord vs Quantum Discord
Sign Up to like & getrecommendations! Published in 2017 at "Annalen der Physik"
DOI: 10.1002/andp.201700014
Abstract: A two qubits system interacting with two independent spin-environments connecting with the third environment is constructed in order to demonstrate the effect of the multi-environment for quantum correlation. In this process, the freezing phenomenon appears… read more here.
Keywords: discord; geometry; environment; quantum correlation ... See more keywords
Quantum Correlation Enhanced with Quantum Coherent Feedback Control in a Cavity‐magnon Hybrid System
Sign Up to like & getrecommendations! Published in 2024 at "Annalen der Physik"
DOI: 10.1002/andp.202400221
Abstract: A scheme is proposed to enhance quantum correlation, including entanglement and steering, for two magnon modes in a cavity‐magnon hybrid system through coherent quantum feedback. The hybrid system consists of a microwave cavity and two… read more here.
Keywords: hybrid system; cavity magnon; quantum correlation; cavity ... See more keywords
Quantum Phase Transitions in Conventional Matrix Product Systems
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-016-3163-z
Abstract: For matrix product states(MPSs) of one-dimensional spin-12$\frac {1}{2}$ chains, we investigate a new kind of conventional quantum phase transition(QPT). We find that the system has two different ferromagnetic phases; on the line of the two… read more here.
Keywords: quantum; matrix product; correlation; quantum correlation ... See more keywords
Optimization of Quantum Correlation in Cascaded Four-Wave Mixing
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-016-3225-2
Abstract: We propose a measurement strategy that can be used to optimize quantum correlation for a cascaded four-wave mixing (FWM) structure. By calculating the covariance matrix of a cascaded FWM structure, we can get all the… read more here.
Keywords: cascaded four; four wave; wave mixing; quantum correlation ... See more keywords
Dynamics of quantum correlation and coherence in de Sitter universe
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1659-y
Abstract: In this article, we investigate the dynamics of quantum correlation and coherence for two atoms interacting with massless scalar field in the background de Sitter spacetime. We firstly analyze the solving process of master equation… read more here.
Keywords: dynamics quantum; sitter; correlation coherence; correlation ... See more keywords
Dynamics of quantum correlation of atoms immersed in a thermal quantum scalar fields with a boundary
Sign Up to like & getrecommendations! Published in 2018 at "Quantum Information Processing"
DOI: 10.1007/s11128-018-1994-7
Abstract: In this paper, we study the behaviors of quantum correlation for two atoms immersed in a thermal bath of quantum scalar fields in the presence of a perfectly reflecting plane boundary. We firstly discuss the… read more here.
Keywords: atoms immersed; correlation; immersed thermal; quantum correlation ... See more keywords
Dynamics of non-equilibrium thermal quantum correlation in a two-qubit Heisenberg XYZ model
Sign Up to like & getrecommendations! Published in 2020 at "Quantum Information Processing"
DOI: 10.1007/s11128-020-2594-x
Abstract: The non-equilibrium thermal entanglement and quantum discord in a two-qubit Heisenberg XYZ model subjected to two thermal baths with different temperatures are investigated. The dynamical behaviors of entanglement and quantum discord under the influences of… read more here.
Keywords: two qubit; non equilibrium; quantum correlation; equilibrium thermal ... See more keywords
Dynamics of quantum correlation and coherence for two atoms coupled with a bath of fluctuating massless scalar field
Sign Up to like & getrecommendations! Published in 2017 at "Annals of Physics"
DOI: 10.1016/j.aop.2017.01.008
Abstract: Abstract In this article, the dynamics of quantum correlation and coherence for two atoms interacting with a bath of fluctuating massless scalar field in the Minkowski vacuum is investigated. We firstly derive the master equation… read more here.
Keywords: state; correlation coherence; correlation; two atoms ... See more keywords
Resource-efficient quantum correlation measurements via multicopy neural network methods
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-025-24607-2
Abstract: Measuring complex properties in quantum systems, such as measures of quantum entanglement and Bell nonlocality, is inherently challenging. Traditional methods, like quantum state tomography (QST), require a full reconstruction of the density matrix for a… read more here.
Keywords: resource efficient; quantum correlation; multicopy; efficient quantum ... See more keywords
Partial coherence and quantum correlation with fidelity and affinity distances
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.032305
Abstract: A fundamental task in any physical theory is to quantify certain physical quantity in a meaningful way. In this paper we show that both fidelity distance and affinity distance satisfy the strong contractibility, and the… read more here.
Keywords: quantum correlation; theory; affinity; coherence ... See more keywords
Quantum-correlation-enhanced weak-field detection in an optomechanical system
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.063811
Abstract: We propose a theoretical scheme to enhance the signal-to-noise ratio in ultrasensitive detection with the help of quantum correlation. By introducing the auxiliary oscillator and treated as an added probe for weak field detection, the… read more here.
Keywords: quantum correlation; weak field; field detection; detection ... See more keywords