Atom chips with free-standing two-dimensional electron gases: advantages and challenges

Sinuco-Le�n, German A.; Kruger, Peter; Fromhold, Mark

Abstract

In this work, we consider the advantages and challenges of using free-standing two-dimensional electron gases (2DEG) as active components in atom chips for manipulating ultracold ensembles of alkali atoms. We calculate trapping parameters achievable with typical high-mobility 2DEGs in an atom chip configuration and identify advantages of this system for trapping atoms at submicron distances from the atom chip. We show how the sensitivity of atomic gases to magnetic field inhomogeneity can be exploited for controlling the atoms with quantum electronic devices and, conversely, using the atoms to probe the structural and transport properties of semiconductor devices.

• Journal Article Type: Article
• Acceptance Date: Nov 27, 2017
• Publication Date: Jan 24, 2018
• Deposit Date: Mar 29, 2018
• Publicly Available Date: Mar 29, 2018
• Journal: Journal of Modern Optics
• Print ISSN: 0950-0340
• Electronic ISSN: 1362-3044
• Publisher: Taylor & Francis Open
• Peer Reviewed: Peer Reviewed
• Volume: 65
• Issue: 5-6
• DOI: https://doi.org/10.1080/09500340.2017.1423410
• Keywords: Atom chips; two-dimensional electron gases; ultracold atomic gases; trapping and manipulation; magnetic sensors; quantum technologies
• Public URL: https://nottingham-repository.worktribe.com/output/906932
• Publisher URL: https://www.tandfonline.com/doi/full/10.1080/09500340.2017.1423410