Published in International Journal of Theoretical Physics
In this work we introduce a three-party quantum conference where the involved parties initially hold asymmetric quantum information which are finally shared amongst themselves by the execution of a quantum communication protocol. The three conferencing parties along with a controller are connected amongst themselves through a multipartite quantum e...
Published in Quantum Information Processing
We investigate the multipartite entanglement and the trace distance for the two-dimensional XXZ anisotropic spin-12\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\frac...
Published in Quantum Information Processing
We use multipartite entanglement and trace distance to detect the quantum phase transitions of the extended one-dimensional compass spin-chain model by applying the density matrix renormalization group method which is represented by the matrix product state. It is shown that singular behaviors of the first-order derivative of the multipartite entan...
Analyzing pseudo-telepathy graph games, we propose a way to build contextuality scenarios exhibiting the quantum supremacy using graph states. We consider the combinatorial structures that generate equivalent scenarios. We introduce a new tool called multipartiteness width to investigate which scenarios are harder to decompose and show that there e...
Published in Quantum Information Processing
We investigate the multipartite entanglement and trace distance of the one-dimensional anisotropic spin-1/2 XXZ spin chain with the Dzyaloshinskii–Moriya interaction and find that the Dzyaloshinskii–Moriya interaction can influence the entanglement distribution and increase the proportion of multipartite entanglement in the entanglement structure. ...
Published in Quantum Information Processing
We propose a new way for quantifying entanglement of multipartite entangled states which have a symmetrical structure and can be expressed as valence-bond-solid states. We put forward a new concept ‘unit.’ The entangled state can be decomposed into a series of units or be reconstructed by multiplying the units successively, which simplifies the ana...
Published in Quantum Information Processing
This article proposes an efficient way of calculating the geometric measure of entanglement using tensor decomposition methods. The connection between these two concepts is explored using the tensor representation of the wavefunction. Numerical examples are benchmarked and compared. Furthermore, we search for highly entangled qubit states to show t...
Published in International Journal of Theoretical Physics
Entangling quantum systems at distant locations is a newly discovered counterintuitive phenomenon. However, the generation effect will be reduced by imperfections of practical devices. In this paper, we demonstrate a Gaussian process approach for the scheme design of multipartite continuous-variable (CV) entanglement generation and distribution by ...
Published in Quantum Information Processing
In this paper, multipartite entanglement enhancement in an open system under non-inertial frames via local non-unitary operations is explored. Explicitly, we investigate an available methodology to enhance tripartite entanglement of X-state, when the systems suffer from amplitude damping (AD) noise and one subsystem is under non-inertial frames. As...
Presented at the QMath13 Conference: Mathematical Results in Quantum Theory, October 8-11, 2016 at the Clough Undergraduate Learning Commons, Georgia Tech. / Quantum Information - Sunday, October 9th, 2016, Skiles 268 - Chair: Beth Ruskai / Michael Walter, Patrick Hayden, Sepehr Nezami, Nathaniel Thomas, Xiaoliang Qi, and Zhao Yang are with the Ins...
