Multipartite entanglement in heterogeneous systems

D Goyeneche, J Bielawski, K Życzkowski - Physical Review A, 2016 - APS
Heterogeneous bipartite quantum pure states, composed of two subsystems with a different
number of levels, cannot have both reductions maximally mixed. In this work, we …

Quantum k-uniform states for heterogeneous systems from irredundant mixed orthogonal arrays

S Pang, X Zhang, SM Fei, ZJ Zheng - Quantum Information Processing, 2021 - Springer
Quantum multipartite entangled states play significant roles in quantum information
processing. By using difference schemes and orthogonal partitions, we construct a series of …

Improving the capacity of quantum dense coding and the fidelity of quantum teleportation by weak measurement and measurement reversal

M Wang, B Sun, L Cao, Y Yang, X Liu, X Wang, J Zhao - Entropy, 2023 - mdpi.com
A protective scheme of quantum dense coding and quantum teleportation of the X-type initial
state is proposed in amplitude damping noisy channel with memory using weak …

Entanglement protection in Jaynes–Cummings model

MA Fasihi, B Mojaveri - Quantum Information Processing, 2019 - Springer
In this work, we study the control of dynamics of entanglement and its protection in different
Jaynes–Cummings models. To preserve atom–field entanglement in Jaynes–Cummings …

Geometric description of modular and weak values in discrete quantum systems using the Majorana representation

M Cormann, Y Caudano - Journal of Physics A: Mathematical …, 2017 - iopscience.iop.org
We express modular and weak values of observables of three-and higher-level quantum
systems in their polar form. The Majorana representation of N-level systems in terms of …

Enhancing entanglement, local and non-local information of accelerated two-qubit and two-qutrit systems via weak-reverse measurements

N Metwally - Europhysics Letters, 2017 - iopscience.iop.org
Weak-reverse measurements (WRM) are employed to recover and protect the entanglement
losses of entangled two-qubit and two-qutrit systems that accelerate. It is shown that the …

Improving the capacity of quantum dense coding by weak measurement and reversal measurement

MB Tian, GF Zhang - Quantum Information Processing, 2018 - Springer
A protocol of quantum dense coding protection of two qubits is proposed in amplitude
damping (AD) channel using weak measurement and reversal measurement. It is found that …

Protecting qubit-qutrit entanglement via non-Hermitian operation

JX Li, SL Chang, YH Zhao, X Xiao, Y Leng - Laser Physics, 2021 - iopscience.iop.org
Entangled states with high-dimensional systems have been investigated widely because of
their extended possibilities. We investigate the entanglement protection of a qubit–qutrit …

Protecting high-dimensional quantum entanglement from the amplitude-phase decoherence sources by weak measurement and reversal

WJ Li, YH Zhao, Y Leng - Laser Physics, 2019 - iopscience.iop.org
Entangled states with high-dimensional systems have been investigated widely because of
its various advantages. This paper investigates the effect of the weak measurement and …

Protecting the entanglement of two-qubit over quantum channels with memory via weak measurement and quantum measurement reversal

MJ Wang, YJ Xia, Y Yang, LZ Cao, QW Zhang… - Chinese …, 2020 - iopscience.iop.org
Based on the quantum technique of the weak measurement and quantum measurement
reversal (WMR), we propose a scheme to protect entanglement for an entangled two-qubit …