U
U. Warring
Researcher at University of Freiburg
Publications - 39
Citations - 1755
U. Warring is an academic researcher from University of Freiburg. The author has contributed to research in topics: Antihydrogen & Quantum simulator. The author has an hindex of 19, co-authored 38 publications receiving 1556 citations. Previous affiliations of U. Warring include Max Planck Society & National Institute of Standards and Technology.
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Journal ArticleDOI
Microwave quantum logic gates for trapped ions
Christian Ospelkaus,U. Warring,Yves Colombe,Kenton R. Brown,Kenton R. Brown,Jason M. Amini,Jason M. Amini,Dietrich Leibfried,David J. Wineland +8 more
TL;DR: The approach, which involves integrating the quantum control mechanism into the trapping device in a scalable manner, could be applied to quantum information processing, simulation and spectroscopy.
Journal ArticleDOI
Proposed antimatter gravity measurement with an antihydrogen beam
Alban Kellerbauer,M. Amoretti,A. S. Belov,Germano Bonomi,I. Boscolo,R. S. Brusa,Matthias Büchner,Vsevolod M. Byakov,L. Cabaret,Carlo Canali,C. Carraro,Fabrizio Castelli,Simone Cialdi,M. de Combarieu,Daniel Comparat,Giovanni Consolati,Nikolay Djourelov,Michael Doser,G. Drobychev,Alfredo Dupasquier,Gabriele Ferrari,P. Forget,L. Formaro,Antonella Gervasini,Marco Giammarchi,Sergei Gninenko,Gleb Gribakin,S. D. Hogan,Marion Jacquey,V. Lagomarsino,G. Manuzio,Sebastiano Mariazzi,Viktor Matveev,J. O. Meier,Frédéric Merkt,P. Nedelec,Markus K. Oberthaler,P. Pari,Marco Prevedelli,Fiorenza Quasso,Alberto Rotondi,D. Sillou,Sergey V. Stepanov,H. H. Stroke,G. Testera,Guglielmo M. Tino,G. Trénec,Antonio Vairo,Jacques Vigué,H. R. J. Walters,U. Warring,Sandra Zavatarelli,D. S. Zvezhinskij +52 more
TL;DR: The AEGIS experiment at CERN/AD as mentioned in this paper was the first experiment to directly measure the Earth's gravitational acceleration on antihydrogen with a classical Moire deflectometer.
Journal ArticleDOI
100-fold reduction of electric-field noise in an ion trap cleaned with in situ argon-ion-beam bombardment.
D. A. Hite,Yves Colombe,Andrew C. Wilson,Kenneth R Brown,U. Warring,Robert Jördens,John D. Jost,Kyle S. McKay,David P. Pappas,D. Leibfried,David J. Wineland +10 more
TL;DR: This study investigates the role of adsorbates on the electrodes by identifying contaminant overlayers, implementing an in situ argon-ion-beam cleaning treatment, and measuring ion heating rates before and after treating the trap electrodes' surfaces, finding a 100-fold reduction in heating rate after treatment.
Journal ArticleDOI
Arrays of individually controlled ions suitable for two-dimensional quantum simulations
Manuel Mielenz,Henning Kalis,Matthias Wittemer,Frederick Hakelberg,U. Warring,Roman Schmied,Matthew Glenn Blain,Peter Maunz,D. L. Moehring,Dietrich Leibfried,Tobias Schaetz +10 more
TL;DR: This work demonstrates individual control of the electronic and motional degrees of freedom, preparation of a fiducial initial state with ion motion close to the ground state, as well as a tuning of couplings between ions within experimental sequences, paves the way towards a quantum simulator of two-dimensional systems designed at will.
Journal ArticleDOI
Time-Resolved Observation of Thermalization in an Isolated Quantum System.
TL;DR: In this article, trapped atomic ions forming a hybrid Coulomb crystal were used to study an isolated quantum system composed of a single spin coupled to an engineered bosonic environment and observed the emergence of thermalization: time averages of spin observables approach microcanonical averages while related fluctuations decay.