Quantum-state transfer in staggered coupled-cavity arrays

GMA Almeida, F Ciccarello, TJG Apollaro, AMC Souza - Physical Review A, 2016 - APS
We consider a coupled-cavity array, where each cavity interacts with an atom under the
rotating-wave approximation. For a staggered pattern of intercavity couplings, a pair of field …

Landau–zener topological quantum state transfer

S Longhi, GL Giorgi, R Zambrini - Advanced Quantum …, 2019 - Wiley Online Library
Fast and robust quantum state transfer (QST) is a major requirement in quantum control and
in scalable quantum information processing. Topological protection has emerged as a …

Violation of cluster decomposition and absence of light cones in local integer and half-integer spin chains

L Dell'Anna, O Salberger, L Barbiero, A Trombettoni… - Physical Review B, 2016 - APS
We compute the ground-state correlation functions of an exactly solvable chain of integer
spins, recently introduced in [R. Movassagh and PW Shor, ar** mechanism and the diagonal form of van …

Quantum transfer of interacting qubits

TJG Apollaro, S Lorenzo, F Plastina… - New Journal of …, 2022 - iopscience.iop.org
The transfer of quantum information between different locations is key to many quantum
information processing tasks. Whereas, the transfer of a single qubit state has been …

Superadiabatic quantum state transfer in spin chains

RR Agundez, CD Hill, LCL Hollenberg, S Rogge… - Physical Review A, 2017 - APS
In this paper we propose a superadiabatic protocol where quantum state transfer can be
achieved with arbitrarily high accuracy and minimal control across long spin chains with an …

Effect of emitters on quantum state transfer in coupled cavity arrays

E Baum, A Broman, T Clarke, NC Costa, J Mucciaccio… - Physical Review B, 2022 - APS
Over the last decade, conditions for perfect state transfer in quantum spin chains have been
discovered and their experimental realizations addressed, as have their extensions to more …

Perturbative many-body transfer

WJ Chetcuti, C Sanavio, S Lorenzo… - New Journal of …, 2020 - iopscience.iop.org
The transfer of excitations between different locations of a quantum many-body system is of
primary importance in many research areas, from transport properties in spintronics and …

Disorder-assisted distribution of entanglement in spin chains

GMA Almeida, FABF de Moura, TJG Apollaro, ML Lyra - Physical Review A, 2017 - APS
We study the creation and distribution of entanglement in disordered XY-type spin-1/2
chains for the paradigmatic case of a single flipped spin prepared on a fully polarized …

Spin chains for two-qubit teleportation

TJG Apollaro, GMA Almeida, S Lorenzo, A Ferraro… - Physical Review A, 2019 - APS
Generating high-quality multiparticle entanglement between communicating parties is the
primary resource in quantum teleportation protocols. To this aim, we show that the natural …