Simulating quantum mechanics is known to be a difficult computational problem, especially
when dealing with large systems. However, this difficulty may be overcome by using some …

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 …

We review the subject of perfect state transfer—how one designs the (fixed) interactions of a
chain of spins so that a quantum state, initially inserted on one end of the chain, is perfectly …

Waveguide lattices offer a compact and stable platform for a range of applications, including
quantum walks, condensed matter system simulation, and classical and quantum …

The transfer of data is a fundamental task in information systems. Microprocessors contain
dedicated data buses that transmit bits across different locations and implement …

We propose a fast and robust quantum state transfer protocol employing a Su-Schrieffer-
Heeger chain, where the interchain couplings vary in time. Based on simple considerations …

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 …

We introduce a flow condition on open graph states (graph states with inputs and outputs)
which guarantees globally deterministic behavior of a class of measurement patterns …

The ability to realize high-fidelity quantum communication is one of the many facets required
to build generic quantum computing devices. In addition to quantum processing, sensing …

The basic idea of spin-chain engineering for perfect quantum state transfer (QST) is to find a
set of coupling constants in the Hamiltonian such that a particular state initially encoded on …