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 …

Quantum computers promise dramatic advantages over their classical counterparts, but the
source of the power in quantum computing has remained elusive. Here we prove a …

Motivated by their necessity for most fault-tolerant quantum computation schemes, we
formulate a resource theory for magic states. First, we show that robustness of magic is a …

A central problem in quantum information is to determine the minimal physical resources
that are required for quantum computational speed-up and, in particular, for fault-tolerant …

We propose families of protocols for magic-state distillation—important components of fault-
tolerance schemes—for systems of odd prime dimension. Our protocols utilize quantum …

Error-correcting codes protect quantum information and form the basis of fault-tolerant
quantum computing. Leading proposals for fault-tolerant quantum computation require …

The standard approach to fault-tolerant quantum computation is to store information in a
quantum error correction code, such as the surface code, and process information using a …

We give a complete characterization of the (non) classicality of all stabilizer subtheories.
First, we prove that there is a unique nonnegative and diagram-preserving quasiprobability …

We study the ability to implement unitary maps on states of the I= 9/2 nuclear spin in Sr 87,
ad= 10 dimensional (qudecimal) Hilbert space, using quantum optimal control. Through a …

When visualized as an operation on the Bloch sphere, the qubit π/8 gate corresponds to 1/8
of a complete rotation about the vertical axis. This simple gate often plays an important role …