Theory of quantum systems

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Time-dependent density-matrix renormalization-group using adaptive effective Hilbert spaces

(2004)

Authors:

AJ Daley, C Kollath, U Schollwoeck, G Vidal
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Single-atom cooling by superfluid immersion: A nondestructive method for qubits

Physical Review A American Physical Society (APS) 69:2 (2004) 022306

Authors:

AJ Daley, PO Fedichev, P Zoller
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SPECTROSCOPY OF STRONGLY CORRELATED COLD ATOMS

World Scientific Publishing (2004) 145-152

Authors:

AJ DALEY, PO FEDICHEV, P RABL, P ZOLLER, A RECATI, JI CIRAC, J VON DELFT, W ZWERGER
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Measurements of diffusion resonances for the atom optics quantum kicked rotor

Journal of Physics B Atomic Molecular and Optical Physics IOP Publishing 6:1 (2004) 28

Authors:

MEK Williams, MP Sadgrove, AJ Daley, RNC Gray, SM Tan, AS Parkins, N Christensen, R Leonhardt
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Single-atom cooling by superfluid immersion: A nondestructive method for qubits

Physical Review A - Atomic, Molecular, and Optical Physics 69:2 (2004) 223061-2230616

Authors:

AJ Daley, PO Fedichev, P Zoller

Abstract:

A scheme to cool the motional state of neutral atoms confined in sites of an optical lattice by immersing the system in a superfluid was analyzed. It was shown that the motion of the atoms is damped by the generation of excitations in the superfluid, and under appropriate conditions the internal state of the atom remains unchanged. It was found that the scheme can be used to cool atoms used to encode a series of entangle qubits nondestructively. The rate of cooling to the ground state was found to be sufficiently large to be useful in experiments, within realizable parameter ranges.