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Proceedings Paper

Generating and detecting electron spin entangled states in nanostructures
Author(s): Xuedong Hu; Sankar Das Sarma
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Paper Abstract

We discuss various approaches to create and detect electron spin entanglement, with a special emphasis on the study of the efficiency of a beam splitter as a detector for entangled electron pairs. In particular, we focus on the consequence of considering wavepacket states for the electrons as they enter the beam splitter in order to illustrate their particle characteristics. We then introduce double quantum dot as a possible source of spin entangled electrons. In particular, we show that a double quantum dot turnstile is, in principle, an efficient electron spin entangler or entanglement filter because of the exchange coupling between the dots and the tunable input/output potential barriers.

Paper Details

Date Published: 25 May 2004
PDF: 9 pages
Proc. SPIE 5472, Noise and Information in Nanoelectronics, Sensors, and Standards II, (25 May 2004); doi: 10.1117/12.549437
Show Author Affiliations
Xuedong Hu, Univ. at Buffalo/SUNY (United States)
Sankar Das Sarma, Univ. of Maryland/College Park (United States)

Published in SPIE Proceedings Vol. 5472:
Noise and Information in Nanoelectronics, Sensors, and Standards II
Janusz M. Smulko; Yaroslav Blanter; Mark I. Dykman; Laszlo B. Kish, Editor(s)

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