Qudit is a multi-level computational unit alternative to the conventional 2-level qubit.
Compared to qubit, qudit provides a larger state space to store and process information, and …

The transfer of data is a fundamental task in information systems. Microprocessors contain
dedicated data buses that transmit bits across different locations and implement …

Engineering nanomechanical quantum systems possessing ultralong motional coherence
times allows for applications in precision quantum sensing and quantum interfaces, but to …

Efficient optimization of quantum systems is a necessity for reaching fault-tolerant
thresholds. A standard tool for optimizing simulated quantum dynamics is the gradient …

We present a quantum SWAP gate valid for quantum systems of an arbitrary dimension. The
gate generalizes the CNOT implementation of the SWAP gate for qubits and keeps its most …

In this work, we analyze a number of noisy quantum channels on a family of qudit states. The
channels studied are the dit-flip noise, phase flip noise, dit-phase flip noise, depolarizing …

Broadcasting information anonymously becomes more difficult as surveillance technology
improves, but remarkably, quantum protocols exist that enable provably traceless …

The Kitaev surface code model is the most studied example of a topologically ordered phase
and typically involves four-spin interactions on a two-dimensional surface. A universal …

In this chapter we propose a method to entangle two distant spin-1/2 particles in a one
dimensional array of spins through quantum quench [1–5]. A quench is the rapid change of …

We show how to perfectly transfer, without state initialization and remote collaboration,
arbitrary functions in interacting boson lattices. We describe a possible implementation of …