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Christopher R Monroe

Gilhuly Family Presidential Distinguished Professor
Pierre R. Lamond Department of Electrical and Computer Engineering
130 Hudson Hall, Box 90291, Durham, NC 27708
the Chesterfield Building, 701 W. Main St., Durham, NC 27701

Scholarly Works - Book sections


Very cold trapped atoms in a vapor cell

Book section · 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 ... Full text Cite

A magnetic suspension system for atoms and bar magnets

Book section · 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 ... Full text Cite

Fundamental physics with optically trapped atoms

Book section · 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 ... Full text Cite

Multiply loaded, ac magnetic trap for neutral atoms

Book section · 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 ... Full text Cite

The low (temperature) road toward bose-einstein condensation in optically and magnetically trapped cesium atoms

Book section · 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 ... Full text Cite

Measurement of Cs-Cs elastic scattering at T =30 μK

Book section · 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 ... Full text Cite

Observation of the cesium clock transition using laser-cooled atoms in a vapor cell

Book section · 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 ... Full text Cite

Quantum computing with trapped ion hyperfine qubits

Book section · 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 ... Full text Cite

Ion trap networking: Cold, fast, and small

Book section · 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 ... Full text Cite

Experimental Primer on the Trapped Ion Quantum Computer

Book section · 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 ... Full text Cite