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 …

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

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 …

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 …

Fifty years of developments in nuclear magnetic resonance (NMR) have resulted in an
unrivaled degree of control of the dynamics of coupled two-level quantum systems. This …

To process information using quantum-mechanical principles, the states of individual
particles need to be entangled and manipulated. One way to do this is to use trapped, laser …

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

Computers are physical systems: the laws of physics dictate what they can and cannot do. In
particular, the speed with which a physical device can process information is limited by its …