Optical atomic clocks represent the state of the art in the frontier of modern measurement
science. In this article a detailed review on the development of optical atomic clocks that are …

Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

Quantum computers can solve certain problems more efficiently than any possible
conventional computer. Small quantum algorithms have been demonstrated on multiple …

The counter-intuitive aspects of quantum physics have been for long illustrated by thought
experiments, from Einstein's photon box to Schrödinger's cat. These experiments have now …

We run a selection of algorithms on two state-of-the-art 5-qubit quantum computers that are
based on different technology platforms. One is a publicly accessible superconducting …

We report high-fidelity laser-beam-induced quantum logic gates on magnetic-field-
insensitive qubits comprised of hyperfine states in Be 9+ ions with a memory coherence time …

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

Tracking the dynamics of physical systems in real time is a prime application of quantum
computers. Using a trapped-ion system with up to six qubits, we simulate the real-time …

Nobel Lecture: Superposition, entanglement, and raising Schrodinger ’s cat* Page 1 Nobel
Lecture: Superposition, entanglement, and raising Schrodinger ’s cat* David J. Wineland …

With bichromatic fields, it is possible to deterministically produce entangled states of trapped
ions. In this paper we present a unified analysis of this process for both weak and strong …