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Search Publications by: William D. Phillips (Fed)

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Displaying 126 - 150 of 333

Dynamical Tunnelling of Ultracold Atoms

July 1, 2001
Author(s)
W K. Hensinger, H Heffner, A Browaeys, N R. Heckenberg, Kristian Helmerson, C R. McKenzie, G J. Milburn, William D. Phillips, S L. Rolston, H Rubinsztein-Dunlop, B Upcroft
Nowhere does the divergence of the quantum and classical descriptions of particle motion become more apparent than in quantum tunneling between two regions of classically stable motion. An archetype of such nonclassical motion, studied since the earlies

A U.S. Laser-Cooled Atomic-Clock System for Space

January 1, 2001
Author(s)
Donald Sullivan, Thomas P. Heavner, Leo W. Hollberg, D Meekhof, Thomas E. Parker, William D. Phillips, S L. Rolston, Hugh Robinson, Jon H. Shirley, F L. Walls, Neil Ashby, W Kepstein, L Maleki, D Seidel, R Q. Thompson, S Wu, L Young, R Vessot, E Mattison, A Demarchi

Dynamical Tunneling of Ultracold Atoms

January 1, 2001
Author(s)
W K. Hensinger, H Haeffner, A Browaeys, N R. Heckenberg, Kristian Helmerson, C R. McKenzie, William D. Phillips, S L. Rolston, H Rubinsztein-Dunlop, B Upcroft

The Atom Laser

January 1, 2001
Author(s)
Edward W. Hagley, Lu Deng, William D. Phillips, K Burnett, Charles W. Clark

Imaging the Phase of an Evolving Bose-Einstein Condensate Wave Function

September 1, 2000
Author(s)
J E. Simsarian, J Denschlag, M Edwards, Charles W. Clark, Lu Deng, Edward W. Hagley, Kristian Helmerson, S L. Rolston, William D. Phillips
We demonstrate a spatially resolved autocorrelation measurement with a Bose-Einstein condensate (BEC) and measure the evolution of the spatial profile of its quantum mechanical phase. After releasing the BEC from the magnetic trap, the phase develops a

Coherence Properties of an Atom Laser

January 1, 2000
Author(s)
M Trippenbach, Y B. Band, M Edwards, M R. Doery, Paul S. Julienne, Edward W. Hagley, Lu Deng, M M. Kozuma, Kristian Helmerson, S L. Rolston, William D. Phillips
We study the coherence properties of an atom laser, which operates by extracting atoms from a gaseous Bose-Einstein condensate via a two-photon Raman process, by analyzing a recent experiment [(Hagley et al., submitted to Phys. Rev. Lett. (1999)]. We

Generating Solitons by Phase Engineering of a Bose-Einstein Condensate

January 1, 2000
Author(s)
J Denschlag, J E. Simsarian, D L. Feder, Charles W. Clark, L A. Collins, J Cubizolles, Lu Deng, Edward W. Hagley, Kristian Helmerson, W P. Reinhardt, S L. Rolston, B I. Schneider, William D. Phillips
We demonstrate quantum phase engineering using two novel techniques that allow us to write and read the spatial phase of a Bose-Einstein condensate (BEC). We design and produce a quantum state by optically imprinting phasepatterns onto a condensate of