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 …

Magnetism at low dimensions is a thriving field of research with exciting opportunities in
technology. This Colloquium focuses on the properties of 1D magnetic systems on solid …

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 …

We propose and analyze a new approach for quantum state transfer between remote spin
qubits. Specifically, we demonstrate that coherent quantum coupling between remote qubits …

We demonstrate that perfect state transfer can be achieved using an engineered spin chain
and clean local end-chain operations, without requiring the initialization of the state of the …

The swap gate is a ubiquitous tool for moving information on quantum hardware, yet it can
be considered a classical operation because it does not entangle product states. Genuinely …

In this paper we build on the ideas presented in previous works for perfectly transferring a
quantum state between opposite ends of a spin chain using a fixed Hamiltonian. While all …

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 …

We investigate the most general conditions under which a finite ferromagnetic long-range
interacting spin chain achieves unitary fidelity and the shortest transfer time in transmitting …

High-quality quantum-state and entanglement transfer can be achieved in an unmodulated
spin bus operating in the ballistic regime, which occurs when the endpoint qubits A and B …