Quantum Information Processing
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Probing quantum coherence, uncertainty, steerability of quantum coherence and quantum phase transition in the spin model
Quantum Information Processing - Tập 16 - Trang 1-15 - 2017
In this paper, we study the relation among quantum coherence, uncertainty, steerability of quantum coherence based on skew information and quantum phase transition in the spin model by employing quantum renormalization-group method. Interestingly, the results show that the value of the local quantum uncertainty is equal to the local quantum coherence corresponding to local observable
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Quantum differential cryptanalysis
Quantum Information Processing - Tập 14 - Trang 2101-2109 - 2015
In this paper, we propose a quantum version of the differential cryptanalysis which offers a quadratic speedup over the existing classical one and show the quantum circuit implementing it. The quantum differential cryptanalysis is based on the quantum minimum/maximum-finding algorithm, where the values to be compared and filtered are obtained by calling the quantum counting algorithm. Any cipher w...... hiện toàn bộ
Quantum Bayesian game with symmetric and asymmetric information
Quantum Information Processing - Tập 14 - Trang 1827-1840 - 2015
We use one of the influential quantum game models, the Marinatto–Weber model, to investigate quantum Bayesian game. We show that in a quantum Bayesian game which has more than one Nash equilibrium, one equilibrium stands out as the compelling solution, whereas two Nash equilibria seem equally compelling in the classical Bayesian game.
Dynamics of non-equilibrium thermal quantum correlation in a two-qubit Heisenberg XYZ model
Quantum Information Processing - Tập 19 - Trang 1-15 - 2020
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 the initial states of the two-qubit system, the temperature of the thermal baths and the coupling constant $$J_z$$ are discussed. A special em...... hiện toàn bộ
Unextendible Product Bases and Locally Unconvertible Bound Entangled States
Quantum Information Processing - Tập 3 - Trang 309-329 - 2004
Mutual convertibility of bound entangled states under local quantum operations and classical communication (LOCC) is studied. We focus on states associated with unextendible product bases (UPB) in a system of three qubits. A complete classification of such UPBs is suggested. We prove that for any pair of UPBs S and T the associated bound entangled states ρ
S
and ...... hiện toàn bộ
Efficient semiquantum key distribution without entanglement
Quantum Information Processing - Tập 18 - Trang 1-10 - 2019
Semiquantum cryptography was proposed to deal with the issue that some players require only partial quantum power, such as preparing or measuring quantum states in the classical basis, which simplifies the implementations of quantum cryptography. However, the efficiency of the existing semiquantum cryptographic protocols was relatively low from a practical point of view. In this paper, we devise i...... hiện toàn bộ
Measurement-device-independent quantum protocol for E-payment based on blockchain
Quantum Information Processing - Tập 22 Số 1
MDS, Hermitian almost MDS, and Gilbert–Varshamov quantum codes from generalized monomial-Cartesian codes
Quantum Information Processing - - 2024
We construct new stabilizer quantum error-correcting codes from generalized monomial-Cartesian codes. Our construction uses an explicitly defined twist vector, and we present formulas for the minimum distance and dimension. Generalized monomial-Cartesian codes arise from polynomials in m variables. When
$$m=1$$
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An optional remote state preparation protocol for a four-qubit entangled state
Quantum Information Processing - Tập 18 - Trang 1-10 - 2019
In this paper, we introduce a remote state preparation protocol for the case of a known four-qubit entangled state in which there are two possible receivers and the sender has the option of choosing one of the two possible parties for a preparation of the intended state at the end of the chosen party. The sender begins with a measurement on a two-qubit system in which the measurement basis is chos...... hiện toàn bộ
Quantum Fisher information for moving three-level atom
Quantum Information Processing - Tập 12 Số 12 - Trang 3761-3769 - 2013
Tổng số: 3,018
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