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 …

Faithful communication is a necessary precondition for large scale all-optical networking
and quantum information processing. Related theoretical investigations in different areas of …

We study the routing of quantum information in qubit chains. This task is achieved by
suitably chosen time-dependent local fields acting on the qubits. Employing the physics of …

We propose a directional coupler exploiting the framework of adiabatic passage for two-
level atomic systems with a configuration-dependent complex-hyperbolic-secant scheme. A …

Scalable quantum information processing will require quantum networks of qubits with the
ability to coherently transfer quantum states between the desired sender and receiver …

We introduce a scheme for perfect state transfer in regular two-and three-dimensional
structures. The interactions on the lattices are of the XX spin type with uniform couplings. In …

We investigate the adiabatic evolution of light in nonlinear waveguide couplers via
resonance-locked inverse engineering based on stimulated Raman adiabatic passage …

Employing counterdiabatic shortcut to adiabaticity (STA), we design short and robust
achromatic two-and three-waveguide couplers. We assume that the phase mismatch …

We investigate high-fidelity multiple beam splitting in Hermitian and non-Hermitian (NH)
symmetric coupled waveguides (WGs) with one input and 2 N output WG channels. In …

We demonstrate a previously unknown two-photon effect in a discrete-time quantum walk.
Two identical bosons with no mutual interactions nonetheless can remain clustered together …