Scholarly Works - Book sections
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January 1, 2008
We have produced a very cold sample of spin-polarired trapprd atoms. The technique used dramatically simplifies the production of laser-cooled atoms. In this experiment. 1.8 ⨯ 107neutral cesium atoms were optically captured directly from a low-p ...
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January 1, 2008
A three dimensional magnetic confinement system is presented which will trap both macroscopic and atomic magnetic dipoles. The dipole is confined by dc and oscillating magnetic fields, and its motion is described by the Mathieu equation. Most aspect3 of th ...
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January 1, 2008
We discuss two experiments which appear feasible because of the progress in laser trapping and cooling of neutral atoms. First, using laser trapping, it should be possible trap a number of radioactive isotopes of cesium and francium. Precise measurements o ...
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January 1, 2008
We have demonstrated an oscillating-gradient magnetic trap for confining cesium atoms in the lowest-energy spin state. In this state spin-flip collisions are energetically forbidden and thus the primary density- and temperature-limiting process for magneti ...
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January 1, 2008
There is considerable reason to pursue the extreme limits of low temperature and high density that can be achieved in an atomic vapor. First there is the intrinsic interest in the trapping and cooling of atoms, and the behavior of atoms in new regimes of t ...
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January 1, 2008
We have measured the elastic collision cross section for spin polarized atomic cesium. Neutral cesium atoms are optically cooled, then loaded into a dc magnetic trap. We infer the scattering rate from the rate at which anisotropies in the initial energy di ...
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January 1, 2008
Cesium atoms in a vapor cell have been trapped and cooled by using light from laser diodes. The 6s F = 4, m = 0 →6.9 F = 3, m = 0 hyperfine clock transition was excited as these atoms then fell 2.5 cm in darkness. We observed a linewidth of 8 Hz with good ...
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December 1, 2005
We discuss the basic aspects of quantum information processing with trapped ions, including the principles of ion trapping, preparation and detection of hyper-fine qubits, single-qubit operations and multi-qubit entanglement protocols. Recent experimental ...
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January 1, 2005
A large-scale ion trap quantum computer will require low-noise entanglement schemes and methods for networking ions between different regions. We report work on both fronts, with the entanglement of two trapped cadmium ions following a phase-insensitive Mo ...
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January 1, 2005
The development of a quantum computer based on a system of trapped atomic ions is described, following the proposal of Cirac and Zoller. Initial results on a two-bit quantum logic gate are presented, and select experimental issues in scaling the system to ...
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