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Article
Sudden change of local quantum uncertainty and geometry for arbitrary two-qubit X-states
Local quantum uncertainty (LQU) as a reliable measure of nonclassical correlations has been recently proposed by Girolami et al. (Phys Rev Lett 110:240402, 2013). In this paper, we have derived an explicit ana...
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Article
Local quantum uncertainty and interferometric power for a two-qubit system under decoherence channels with memory
Via local quantum uncertainty (LQU) and interferometric power (IP) as a measure of nonclassical correlations, we study the dynamics of quantum correlations for two non-interacting qubits passing through decohe...
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Article
Active control of near-field radiative heat transfer via multiple coupling of surface waves with graphene plasmon
It is known that the surface plasmons (SPs) supported by graphene can be strongly coupled with electric SPs supported by the metamaterial and with symmetric and antisymmetric surface phonon polaritons (SPhPs)...
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Article
Dynamics and Protection of the Relative Entropy of Coherence via Additional Non-interacting Qubits
We analytically study the dynamical behavior of the quantum coherence of a single-qubit coupled to a bosonic reservoir at zero temperature via plugging additional non-interacting qubits into the reservoir in b...
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Article
Geometric Quantum Discord of a Two-Qutrit System Under Decoherence at Finite Temperature
The dynamics and protection of geometric quantum discord (GQD) for a two-qutrit system under amplitude dam** channel with finite temperature have been studied in detail. By using of a lower bound of GQD, num...
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Article
Enhancing parameter estimation precision by non-Hermitian operator process
Recently, Zhong et al. (Phys Rev A 87:022337, 2013) investigated the dynamics of quantum Fisher information (QFI) in the presence of decoherence. We here reform their results and propose two schemes to enhance an...
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Article
Quantum Discord of two Coupled Qubits with Initial System-reservoir Correlation
Recently, the effect of initial qubit-reservoir correlation for two qubits in a common reservoir on the entanglement dynamics has been studied by Yan and **a (Acta Sinica Quantum Optica 20, 16 2014). We extend th...
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Article
Generation and protection of steady-state quantum correlations due to quantum channels with memory
We have proposed a scheme of the generation and preservation of two-qubit steady-state quantum correlations through quantum channels where successive uses of the channels are correlated. Different types of noi...
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Article
Distillability sudden death and sudden birth in a two-qutrit system under decoherence at finite temperature
Distillability sudden death and sudden birth in a two-qutrit system locally subject to amplitude dam** channel at a finite temperature have been studied in detail. By using the negativity and the realignment...
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Article
Pairwise Quantum Discord for a Symmetric Multi-Qubit System in Different Types of Noisy Channels
We study the pairwise quantum discord (QD) for a symmetric multi-qubit system in different types of noisy channels, such as phase-flip, amplitude dam**, phase-dam**, and depolarizing channels. Using the QD...
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Article
Correlation quantum beats induced by non-Markovian effect
For two qubits independently coupled to their respective structured reservoirs (Lorentzian spectrum), quantum beats for entanglement and discord are found which are the result of quantum interference between c...
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Article
Formal photograph compression algorithm based on object segmentation
Small storage space for photographs in formal documents is increasingly necessary in today’s needs for huge amounts of data communication and storage. Traditional compression algorithms do not sufficiently uti...
