One of the ambitious goals of artificial intelligence is to build a machine that outperforms
human intelligence, even if limited knowledge and data are provided. Reinforcement …

Randomness is an essential tool in many disciplines of modern sciences, such as
cryptography, black hole physics, random matrix theory, and Monte Carlo sampling. In …

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 …

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 …

The time evolution of quantum many-body systems is one of the most important processes
for benchmarking quantum simulators. The most curious feature of such dynamics is the …

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 …

Quantum-state transfer with fidelity higher than 0.99 can be achieved in the ballistic regime
of an arbitrarily long one-dimensional chain with uniform nearest-neighbor interaction …

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 put forward a strategy to encode a quantum operation into the unmodulated dynamics of
a quantum network without the need for external control pulses, measurements or active …

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