News: Research Highlights

Tue January 1, 2008

Magnetic trapping of silver and copper, and anomalous spin relaxation in the Ag-He system

M. T. Hummon, W. Campbell, H. Lu, Y. Wang, and J. M. Doyle, Magnetic trapping of atomic nitrogen and cotrapping of NH, Phys. Rev. Lett. 78, 050702 (2008).
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Research Highlights
Tue January 1, 2008

Spin Squeezing on an Atomic Clock Transition

Atomic clocks, the most accurate instruments ever developed, can now operate at the Standard Quantum Limit; their uncertainty dominated by the uncorrelated projection of individual atoms into eigenstates.  Using entanglement, quantum mechanics allows one to correlate the atoms so as to redistribute or squeeze such quantum noise, reducing the uncertainty in a variable of interest.
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Research Highlights
Tue January 1, 2008

Precision Measurement of Long Radiative Lifetimes Using Trapped Molecules

Time-Domain Measurement of Spontaneous Vibrational Decay of Magnetically Trapped NH, W.C. Campbell, G.C. Groenenboom, H. Lu, E. Tsikata, J.M. Doyle. Phys Rev Lett 100, 083003 (2008).
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News type:
Research Highlights
Tue January 1, 2008

Collisions of Ultracold Shaped Atoms in an Optical Trap

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Research Highlights
Tue January 1, 2008

Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases

A. Widera, S. Trotzky, P. Cheinet, S. Foelling, F. Gerbier, M. D. Lukin, E. Demler, I. Bloch, and V. Gritsev, Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases, Phys. Rev. Lett. 100, 140401 (2008).
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Research Highlights
Tue January 1, 2008

Phase diagram of a two-component Fermi gas with resonant interactions

The pairing of fermions is at the heart of superconductivity and superfluidity.  The stability of these pairs determines the robustness of the superfluid state, and the quest for superconductors with high critical temperature is a search for systems with strong pairing mechanisms. Ultracold atomic Fermi gases have emerged as a highly controllable model system for...
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Research Highlights
Tue January 1, 2008

Suppression of Inelastic Collisions between Polar molecules with a Repulsive Shield

A. Gorshkov, P. R. G. Pupillo, A. Micheli, P. Zoller, M. D. Lukin, and H. P. Buchler, Suppression of Inelastic Collisions between Polar Molecules with a Repulsive Shield, Phys. Rev. Lett. 101, 073201 (2008).
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Research Highlights
Tue January 1, 2008

New Frontiers in Cold Atom Trapping

N. Brahms, B. Newman, C. Johnson, T. Greytak, D. Kleppner, and J. M. Doyle, Magnetic Trapping of Silver and Copper, and Anomalous Spin Relaxation in the Ag-He System, Phys. Rev. Lett. 101, 103002 (2008).
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Research Highlights
Mon January 1, 2007

A Bright, Guided Molecular Beam With Hydrodynamic Enhancement

Molecular beams form the technological basis for a wide range of chemical and physical studies. We report here an advance in producing cold beams of atoms and molecules with high intensity. This method is general in that it uses helium, an inert gas, to cool species, even refractory and radical molecules. Cold molecular oxygen and...
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Research Highlights
Mon January 1, 2007

Matter-Wave Interferometry with Phase Fluctuating Bose-Einstein Condensates

A non-interacting zero-temperature Bose-Einstein condensate is the matter-wave analogue to the optical laser, and therefore the ideal atom source for matter-wave interferometry.  However, at finite temperature elongated condensates (e.g. in wave guides) suffer from phase fluctuations.
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News type:
Research Highlights