Coupling a single atomic quantum bit to a high finesse optical cavity.
A.B. Mundt,A. Kreuter,Christoph Becher,Dietrich Leibfried,Jürgen Eschner,Ferdinand Schmidt-Kaler,Rainer Blatt +6 more
TLDR
The quadrupole S(1/2)-D(5/2) optical transition of a single trapped Ca+ ion is coherently coupled to the standing wave field of a high finesse cavity and deterministic coupling of the cavity mode to the ion's vibrational state is achieved.Abstract:
The quadrupole S(1/2)-D(5/2) optical transition of a single trapped Ca+ ion, well suited for encoding a quantum bit of information, is coherently coupled to the standing wave field of a high finesse cavity. The coupling is verified by observing the ion's response to both spatial and temporal variations of the intracavity field. We also achieve deterministic coupling of the cavity mode to the ion's vibrational state by selectively exciting vibrational state-changing transitions and by controlling the position of the ion in the standing wave field with nanometer precision.read more
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Cavity-based quantum networks with single atoms and optical photons
Andreas Reiserer,Gerhard Rempe +1 more
TL;DR: In this article, a review describes progress towards the goal of multinode networks using the current generation of experiments, which have achieved unprecedented levels of atomic qubit control and light-matter coupling efficiencies.
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Trapped-ion quantum computing: Progress and challenges
TL;DR: In this article, the authors review the state of the field of trapped ion quantum computing and discuss what is being done, and what may be required, to increase the scale of trapped ions quantum computers while mitigating decoherence and control errors.
Journal ArticleDOI
Cavity Quantum Electrodynamics: Coherence in Context
Hideo Mabuchi,Andrew C. Doherty +1 more
TL;DR: The purview of cavity QED will continue to grow as researchers build on a rich infrastructure to attack some of the most pressing open questions in micro- and mesoscopic physics.
Journal ArticleDOI
Observation of entanglement between a single trapped atom and a single photon
TL;DR: The direct observation of entanglement between stationary and ‘flying’ qubits is accomplished without using cavity quantum electrodynamic techniques or prepared non-classical light sources and it is envisioned that this source of entangling may be used for a variety of quantum communication protocols and for seeding large-scale entangled states of trapped ion qubits for scalable quantum computing.
Journal ArticleDOI
Implementation of the Deutsch-Jozsa algorithm on an ion-trap quantum computer.
S. Gulde,M. Riebe,G.P.T. Lancaster,Christoph Becher,Jürgen Eschner,Hartmut Häffner,Ferdinand Schmidt-Kaler,Isaac L. Chuang,Isaac L. Chuang,Rainer Blatt +9 more
TL;DR: This work exploits techniques developed for nuclear magnetic resonance to implement the Deutsch–Jozsa algorithm on an ion-trap quantum processor, using as qubits the electronic and motional states of a single calcium ion.