0411012v1

related topics
{cavity, atom, atoms}
{trap, ion, state}
{wave, scattering, interference}
{temperature, thermal, energy}
{qubit, qubits, gate}
{cos, sin, state}

Transporting, splitting and merging of atomic ensembles in a chip trap

P. Hommelhoff, W. Hänsel, T. Steinmetz, T. W. Hänsch, J. Reichel

abstract: We present a toolbox for cold atom manipulation with time-dependent magnetic fields generated by an atom chip. Wire layouts, detailed experimental procedures and results are presented for the following experiments: Use of a magnetic conveyor belt for positioning of cold atoms and Bose-Einstein condensates with a resolution of two nanometers; splitting of thermal clouds and BECs in adjustable magnetic double well potentials; controlled splitting of a cold reservoir. The devices that enable these manipulations can be combined with each other. We demonstrate this by combining reservoir splitter and conveyor belt to obtain a cold atom dispenser. We discuss the importance of these devices for quantum information processing, atom interferometry and Josephson junction physics on the chip. For all devices, absorption-image video sequences are provided to demonstrate their time-dependent behaviour.

oai_identifier:
oai:arXiv.org:quant-ph/0411012
categories:
quant-ph
comments:
16 pages, 10 figures. For associated animated gif files, see http://www.mpq.mpg.de/~jar/ (click on "Atomic movies"). Published version has much better (figure) quality than in the arxiv version, also some minor improvements
doi:
10.1088/1367-2630/7/1/003
arxiv_id:
quant-ph/0411012
journal_ref:
New J. Phys. 7 (2005) 3
created:
2004-11-02

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