Quantum communication through spin chain dynamics: an introductory overview

S Bose - Contemporary Physics, 2007 - Taylor & Francis
We present an introductory overview of the use of spin chains as quantum wires, which has
recently developed into a topic of lively interest. The principal motivation is in connecting …

Unmodulated spin chains as universal quantum wires

A Wójcik, T Łuczak, P Kurzyński, A Grudka, T Gdala… - Physical Review A …, 2005 - APS
We study a quantum state transfer between two qubits interacting with the ends of a
quantum wire consisting of linearly arranged spins coupled by an excitation conserving, time …

Experimental perfect state transfer of an entangled photonic qubit

RJ Chapman, M Santandrea, Z Huang… - Nature …, 2016 - nature.com
The transfer of data is a fundamental task in information systems. Microprocessors contain
dedicated data buses that transmit bits across different locations and implement …

Spin chains as perfect quantum state mirrors

P Karbach, J Stolze - Physical Review A—Atomic, Molecular, and Optical …, 2005 - APS
Quantum information transfer is an important part of quantum information processing.
Several proposals for quantum information transfer along linear arrays of nearest-neighbor …

Communication at the quantum speed limit along a spin chain

M Murphy, S Montangero, V Giovannetti… - Physical Review A—Atomic …, 2010 - APS
Spin chains have long been considered as candidates for quantum channels to facilitate
quantum communication. We consider the transfer of a single excitation along a spin-1/2 …

Entanglement entropy in quantum impurity systems and systems with boundaries

I Affleck, N Laflorencie… - Journal of Physics A …, 2009 - iopscience.iop.org
We review research on a number of situations where a quantum impurity or a physical
boundary has an interesting effect on entanglement entropy. Our focus is mainly on impurity …

Globally controlled quantum wires for perfect qubit transport, mirroring, and computing

J Fitzsimons, J Twamley - Physical review letters, 2006 - APS
We describe a new design for aq wire with perfect transmission using a uniformly coupled
Ising spin chain subject to global pulses. In addition to allowing for the perfect transport of …

Transfer of arbitrary two-qubit states via a spin chain

S Lorenzo, TJG Apollaro, S Paganelli, GM Palma… - Physical Review A, 2015 - APS
We investigate the fidelity of the quantum state transfer (QST) of two qubits by means of an
arbitrary spin-1 2 network, on a lattice of any dimensionality. Under the assumptions that the …

Multiuser quantum communication networks

A Wojcik, T Łuczak, P Kurzyński, A Grudka, T Gdala… - Physical Review A …, 2007 - APS
We study a quantum state transfer between spins interacting with an arbitrary network of
spins coupled by uniform XX interactions. It is shown that in such a system under fairly …

Dynamics and control of a quasi-one-dimensional spin system

P Cappellaro, C Ramanathan, DG Cory - Physical Review A—Atomic …, 2007 - APS
We study experimentally a system comprised of linear chains of spin-1/2 nuclei that provides
a test bed for multibody dynamics and quantum-information processing. This system is a …