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Search Publications by: William D. Phillips (Fed)

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Displaying 51 - 75 of 172

Study of a 1D Interacting Quantum Bose Gas

October 1, 2004
Author(s)
B Laburthe, K M. O'Hara, J H. Huckans, M Anderlini, James V. Porto, S L. Rolston, William D. Phillips
The loading of a Bose-Einstein condensate into a deep 2D optical lattice provides a unique way to study 1D Bose gases: the strong radial confinement freezes any motion in two dimensions, and for deep enough lattices, the system can be seen as an array

Observation of Reduced Three-Body Recombination in a Fermionized 1D Bose Gas

May 14, 2004
Author(s)
B L. Tolra, K M. O'Hara, J H. Huckans, William D. Phillips, S L. Rolston, James V. Porto
We investigate correlation properties of a one-dimensional interacting Bose gas by loading a mangnetically trapped 87Rb Bose-Einstein condensate into a deep two-dimensional optical lattice. We measure the three-body recombination rate for both the BEC in

Realization of a Quantum Random Walk With Ultracold Atoms

February 1, 2004
Author(s)
D Ciampini, M B. d'Arcy, J M. Grossman, Kristian Helmerson, Paul D. Lett, William D. Phillips, A Vaziri, S L. Rolston
Classical random walks have many applications in computer science. Quantum random walks (QRWs) [1] have been suggested as the potential basis for quantum computing algorithms. Such algorithms have been reported, some of which offer an exponential speed-up

Superfluid-to-Mott-Insulating Transition in a One-Dimensional Atomic Gas

February 1, 2004
Author(s)
C Fertig, K M. O'Hara, J H. Huckans, James V. Porto, William D. Phillips
Over the past two decades, the Mott-insulating phase transition has received a great deal of attention as a prototypical example of a quantum phase transition in a strongly-correlated system for which quantum fluctuations drive the phase transition at zero

Optical Manipulation of Atoms at the Nanoscale

August 11, 2003
Author(s)
William D. Phillips
These notes are to provide an outline of a lecture presented at the Enrico Fermi Summer School at Nanoscale Science, held in Varenna in July 2000. They are not intended as a complete account of that lecture, but as an indication of the topics covered and a

Quantum Information With Neutral Atoms as Qubits

July 1, 2003
Author(s)
James V. Porto, S L. Rolston, B L. Tolra, Carl J. Williams, William D. Phillips
Neutral atoms trapped in periodic optical potentials (optical lattices) offer a possible route toward quantum computation. The atoms can be kept well isolated from the environment, yet can be easily manipulated with the tools of atomic physics. This paper

Quantum Information With Neutral Atoms as Quibits

July 1, 2003
Author(s)
James V. Porto, S L. Rolston, B L. Tolra, Carl J. Williams, William D. Phillips
One of the essential features of a quantum computer is a quantum register of well-characterized qubits. Neural atoms in optical lattices are a natural candidate for such a register. We have demonstrated a pattern loading technique that can be used to load

Patterned Loading of a Bose-Einstein Condensate Into an Optical Lattice

May 1, 2003
Author(s)
S P. Peil, James V. Porto, B L. Tolra, J Obrecht, B E. King, M Subbotin, S L. Rolston, William D. Phillips
We have developed a technique to control the placement of atoms in an optical lattice by using a superlattice comprising two separately manipulated, periodic optical potentials with commensurate periods. We demonstrate selective loading of Bose-condensed

A Bose-Einstein Condensate in an Optical Lattice

July 1, 2002
Author(s)
J Denschlag, J E. Simsarian, H Heffner, C R. McKenzie, A Browaeys, D Cho, Kristian Helmerson, S L. Rolston, William D. Phillips
We have performed a number of experiments with a Bose-Einstein condensate (BEC) in a one dimensional optical lattice. Making use of the small momentum spread of a BEC and standard atom optics techniques a high level of coherent control over an artifical

Nonlinear and Quantum Atom Optics

March 1, 2002
Author(s)
S L. Rolston, William D. Phillips
Coherent matter waves in the form of Bose-Einstein condensates (BECs) have led to the development of non-linear and quantum atom optics, the deBroglie-wave analogs to non-linear and quantum optics with light. Four-wave mixing of matter waves and

Photoassociation of Sodium in a Bose-Einstein Condensate

March 1, 2002
Author(s)
C R. McKenzie, J Denschlag, H Heffner, A Browaeys, L E. de Araujo, F K. Fatemi, Kevin Jones, J E. Simsarian, D Cho, A Simoni, Eite Tiesinga, Paul S. Julienne, Kristian Helmerson, Paul D. Lett, S L. Rolston, William D. Phillips
We report on the formation of ultra-cold Na2 molecules using single-photon photoassociation of a Bose-Einstein condensate. The photoassociation rate, linewidth and light shift of the J = 1, v = 135 vibrational level of the A^1)Sigma^+_u molecular bound

Atom Optics

January 1, 2002
Author(s)
M Prentiss, William D. Phillips, Editors

Photoassociation of sodium in a BEC

January 1, 2002
Author(s)
C R. McKenzie, J H. Denschlag, H Haffner, A Browaeys, L E. de Araujo, F K. Fatemi, Kevin Jones, J E. Simsarian, D Cho, Andrea Simoni, Eite Tiesinga, Paul S. Julienne, Kristian Helmerson, Paul D. Lett, S L. Rolston, William D. Phillips

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