• Rapid Communication

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

G. Sinuco-León, B. Kaczmarek, P. Krüger, and T. M. Fromhold
Phys. Rev. A 83, 021401(R) – Published 1 February 2011

Abstract

We show that current in a two-dimensional electron gas (2DEG) can trap ultracold atoms <1 μm 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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 3 August 2010

DOI:https://doi.org/10.1103/PhysRevA.83.021401

©2011 American Physical Society

Authors & Affiliations

G. Sinuco-León, B. Kaczmarek, P. Krüger, and T. M. Fromhold

  • Midlands Ultracold Atom Research Center, School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 83, Iss. 2 — February 2011

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×