T
Till Rosenband
Researcher at Harvard University
Publications - 99
Citations - 10577
Till Rosenband is an academic researcher from Harvard University. The author has contributed to research in topics: Atomic clock & Trapped ion quantum computer. The author has an hindex of 36, co-authored 97 publications receiving 9582 citations. Previous affiliations of Till Rosenband include Massachusetts Institute of Technology & National Institute of Standards and Technology.
Papers
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Journal ArticleDOI
Frequency Ratio of Al+ and Hg+ Single-Ion Optical Clocks; Metrology at the 17th Decimal Place
Till Rosenband,David Hume,Piet O. Schmidt,Chin-Wen Chou,A. Brusch,Luca Lorini,Windell H. Oskay,Robert E. Drullinger,Tara M. Fortier,Jason Stalnaker,Scott A. Diddams,William C. Swann,Nathan R. Newbury,Wayne M. Itano,David J. Wineland,J. C. Bergquist +15 more
TL;DR: Repeated measurements during the past year yield a preliminary constraint on the temporal variation of the fine-structure constant α of α ofbatchmode, a regime of operation for atomic clocks based on optical transitions, promising even higher performance.
Journal ArticleDOI
Frequency Comparison of Two High-Accuracy Al+ Optical Clocks
TL;DR: An optical clock with a fractional frequency inaccuracy of 8.6x10{-18}, based on quantum logic spectroscopy of an Al+ ion, is constructed, consistent with the accuracy limit of the older clock.
Journal ArticleDOI
Experimental demonstration of a robust, high-fidelity geometric two ion-qubit phase gate
Dietrich Leibfried,Brian DeMarco,V. Meyer,D. M. Lucas,D. M. Lucas,Murray D. Barrett,Joseph W. Britton,Wayne M. Itano,Branislav M. Jelenkovic,C. Langer,Till Rosenband,David J. Wineland +11 more
TL;DR: A universal geometric π-phase gate between two beryllium ion-qubits is demonstrated, based on coherent displacements induced by an optical dipole force, which makes it attractive for a multiplexed trap architecture that would enable scaling to large numbers of ions.
Journal ArticleDOI
Realization of Bose-Einstein Condensates in Lower Dimensions
Axel Görlitz,J. M. Vogels,A. E. Leanhardt,Chandra Raman,T. L. Gustavson,J. R. Abo-Shaeer,A. P. Chikkatur,Subhadeep Gupta,Sharon K. Inouye,Till Rosenband,Wolfgang Ketterle +10 more
TL;DR: The crossover into two-dimensional and one-dimensional condensates was observed by a change in aspect ratio and by the release energy converging to a nonzero value when the number of trapped atoms was reduced.
Experimental demonstration of a robust, high-fidelity geometric two ion-qubit phase gate*
Dietrich Leibfried,Brian DeMarco,V. Meyer,D. M. Lucas,D. M. Lucas,Murray D. Barrett,Joseph W. Britton,Wayne M. Itano,Branislav M. Jelenkovic,C. Langer,Till Rosenband,David J. Wineland +11 more
TL;DR: In this article, the authors demonstrate a universal geometric pi-phase gate between two beryllium ion-qubits, based on coherent displacements induced by an optical dipole force.