Quantum annealing (QA) is a heuristic quantum optimization algorithm that can be used to
solve combinatorial optimization problems. In recent years, advances in quantum …

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 have made extraordinary progress over the past decade, and
significant milestones have been achieved along the path of pursuing universal fault-tolerant …

Presently, one of the most ambitious technological goals is the development of devices
working under the laws of quantum mechanics. One prominent target is the quantum …

Quantum control of individual spins in condensed-matter devices is an emerging field with a
wide range of applications, from nanospintronics, to quantum computing. The electron …

In information processing, as in physics, our classical world view provides an incomplete
approximation to an underlying quantum reality. Quantum effects like interference and …

Quantum computers, which harness the superposition and entanglement of physical states,
could outperform their classical counterparts in solving problems with technological impact …

Quantum computers hold the promise of solving certain computational tasks much more
efficiently than classical computers. We review recent experimental advances towards a …

The superposition principle plays the most central role in all considerations of quantum
information, and in most of the" gedanken" experiments and even the paradoxes of quantum …

We propose an implementation of quantum logic gates via virtual vibrational excitations in
an ion-trap quantum computer. Transition paths involving unpopulated vibrational states …