Pretty good state transfer in networks of qubits occurs when a continuous-time quantum walk
allows the transmission of a qubit state from one node of the network to another, with fidelity …

Reliable quantum communication and/or processing links between modules are a
necessary building block for various quantum processing architectures. Here we consider a …

We discuss how nonlocality originates in long-range quantum systems and how it affects
their dynamics at and out of equilibrium. We focus in particular on the Kitaev chains with …

Spin chains with site dependent exchange coefficients can achieve near perfect quantum
state transfer for Hamiltonians with nearest neighbors XXZ type interactions without external …

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 …

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 …

The distribution of entangled states is a key task of utmost importance for many quantum
information processing protocols. A commonly adopted setup for distributing quantum states …

In this paper we study the spectral features, on fractal-like graphs, of Hamiltonians which
exhibit the special property of perfect quantum state transfer (PQST): the transmission of …

Generating high-quality multiparticle entanglement between communicating parties is the
primary resource in quantum teleportation protocols. To this aim, we show that the natural …

In this work we study the single-qubit quantum state transfer in uniform long-range spin XXZ
systems in high-dimensional geometries. We consider prototypical long-range spin …