Atom chips with two-dimensional electron gases: Theory of near-surface trapping and ultracold-atom microscopy of quantum electronic systems

Journal Article · Tue Feb 15 00:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.021401· OSTI ID:21537094

Sinuco-Leon, G; Kaczmarek, B; Krueger, P; Fromhold, T M ^[1]

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1. Midlands Ultracold Atom Research Center, School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom)

We show that current in a two-dimensional electron gas (2DEG) can trap ultracold atoms <1 {mu}m away with orders of magnitude less spatial noise than a metal trapping wire. This enables the creation of hybrid systems, which integrate ultracold atoms with quantum electronic devices to give extreme sensitivity and control: For example, activating a single quantized conductance channel in the 2DEG can split a Bose-Einstein condensate (BEC) for atom interferometry. In turn, the BEC offers unique structural and functional imaging of quantum devices and transport in heterostructures and graphene.

• OSTI ID: 21537094
• Journal Information: Physical Review. A, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevA.83.021401; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
BOSE-EINSTEIN CONDENSATION
CARBON
CONTROL
ELECTRON GAS
ELECTRONS
HYBRID SYSTEMS
INTERFEROMETRY
MICROSCOPY
NOISE
QUANTUM ELECTRONICS
SENSITIVITY
TRAPPING
TWO-DIMENSIONAL CALCULATIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
LEPTONS
NONMETALS