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arXiv:quant-ph/0110119 · Laser Physics

Quantum Information Processing with Microfabricated Optical Elements

F. B. J. Buchkremer, Rainer Dumke, Volk, M., Muether, T., G. Birkl, Wolfgang A. Ertmer

Published Oct 19, 2001• 9 citations
arXivHTMLPDF

Abstract

We discuss a new direction in the field of quantum information processing with neutral atoms. It is based on the use of microfabricated optical elements. With these elements versatile and integrated atom optical devices can be created in a compact fashion. This approach opens the possibility to scale, parallelize, and miniaturize atom optics for new investigations in fundamental research and applications towards quantum computing with neutral atoms. The exploitation of the unique features of the quantum mechanical behavior of matter waves and the capabilities of powerful state-of-the-art micro- and nanofabrication techniques lend this approach a special attraction.

DOI
10.48550/arxiv.quant-ph/0110119

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We discuss a new direction in the field of quantum information processing with neutral atoms. It is based on the use of microfabricated optical elements. With these elements versatile and integrated atom optical devices can be created in a compact fashion. This approach opens the possibility to scale, parallelize, and miniaturize atom optics for new investigations in fundamental research and applications towards quantum computing with neutral atoms. The exploitation of the unique features of the quantum mechanical behavior of matter waves and the capabilities of powerful state-of-the-art micro- and nanofabrication techniques lend this approach a special attraction.
We introduce a new direction in the field of atom optics, atom interferometry, and neutral-atom quantum information processing. It is based on the use of microfabricated optical elements. With these elements versatile and integrated atom optical devices can be created in a compact fashion. This approach opens the possibility to scale, parallelize, and miniaturize atom optics for new investigations in fundamental research and application. It will lead to new, compact sources of ultracold atoms, compact sensors based on matter wave interference and new approaches towards quantum computing with neutral atoms. The exploitation of the unique features of the quantum mechanical behavior of matter waves and the capabilities of powerful state-of-the-art micro- and nanofabrication techniques lend this approach a special attraction.
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Microfabrication of atomic and optical components plays an increasingly important role in the development of quantum technologies and their application in fields such as sensing, timing and spectroscopy. Driven forward by advances in micro-electromechanical systems (MEMS), new techniques are now used for critical atomic and optical components at the heart of quantum technologies, including diffractive optics, atomic vapour cells and miniaturised ion traps. A range of other miniaturised technologies, such as hollow-core waveguides and integrated photonics, also add to the capabilities of emerging quantum devices. These components offer the potential to scale atomic quantum devices down to chip-scale packages, increasing the application range and facilitating their in-field deployment. Additionally, miniaturisation may also unlock physical regimes, such as thin media effects and atom–interface interactions, opening avenues for new research which cannot be accessed using larger conventional components.
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Summary form only given. The realization of miniaturized and integrated atom-optical elements at surfaces is of interest for many applications ranging from precision measurements to quantum information processing. So far, experimental work has been restricted to magnetic potentials above microfabricated current-carrying wires. Our present work now explores the case of optical potentials and some of its possibilities, including novel integrated atom optical elements such as a continuous atom source, a local atom detector and a quasi-1D surface lattice. In order to realize a continuous atom source for our experiments argon atoms from a slow atomic beam are collected and cooled in a magneto-optical surface trap.