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 …

Two different models are presented that allow for efficiently performing routing of a quantum
state. Both cases involve an XX spin chain working as a data bus and additional spins that …

Efficient quantum-state transfer is achieved in a uniformly coupled spin-1/2 chain, with open
boundaries, by application of local magnetic fields on the second and last-but-one spins …

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 …

In this paper we study quantum state transfer (also called quantum tunneling) on graphs
when there is a potential function on the vertex set. We present two main results. First, we …

One-dimensional arrays with nearest-neighbor interactions occur in several physical
contexts: magnetic chains, Josephson-junction and quantum-dot arrays, 1D boson and …

The transfer of an unknown quantum state, from a sender to a receiver, is one of the main
requirements to perform quantum information processing (QIP) tasks. In this respect, the …

We propose a quantum-state transfer protocol in a spin chain that requires only the control of
the spins at the ends of the quantum wire. The protocol is to a large extent insensitive to …

The transmission of quantum states through spin chains is an important element in the
implementation of quantum information technologies. Speed and fidelity of transfer are the …

The ability to transfer quantum information from one location to another with high probability
is of central importance to quantum information science. Unfortunately, for the simplest …