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 …

We propose an entanglement measure to quantify three-qubit entanglement in terms of
negativity. A monogamy inequality analogous to the Coffman-Kundu-Wootters inequality is …

Separability problem, to decide whether a given state is entangled or not, is a fundamental
problem in quantum information theory. We propose a powerful and computationally simple …

Bipartite quantum entanglement for qutrits and higher-dimensional objects is considered.
We analyze the possibility of violation of monogamy inequality, introduced by Coffman …

We investigate the feasibility of using an effective pulse control method to realize an almost
exact state transmission through a uniform chain where the communication channel is …

The scalability of solid-state quantum computation relies on the ability of connecting the
qubits to the macroscopic world. Quantum chains can be used as quantum wires to keep …

The robustness of multipartite entanglement of systems undergoing decoherence is of
central importance to the area of quantum information. Its characterization depends …

We propose and analyze a robust quantum-state transfer protocol by the use of a
combination of coherent quantum coupling and decoherence-free subspaces in a coupled …

Transmission of a quantum state is essential for performing quantum information processing
tasks. The communication channel will be inevitably immersed in its surrounding …