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Proceedings Paper

Entanglement in the biexciton cascade and the effect of pure dephasing
Author(s): Pierce Munnelly; Alexander Carmele
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Paper Abstract

The biexciton cascade within semiconductor quantum dots is known to be a useful source of polarizationentangled photon pairs. An analytical solution in the weak-coupling regime for quantum-state tomography matrix elements, i.e. the two-photon correlation function, is presented. It is demonstrated that with the inclusion of pure dephasing and considering degenerate exciton levels, the entanglement is not affected, and a convenient formula to calculate the degree of entanglement in an experiment is derived.

Paper Details

Date Published: 20 February 2012
PDF: 7 pages
Proc. SPIE 8260, Ultrafast Phenomena and Nanophotonics XVI, 82600S (20 February 2012); doi: 10.1117/12.906572
Show Author Affiliations
Pierce Munnelly, Technische Univ. Berlin (Germany)
Alexander Carmele, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 8260:
Ultrafast Phenomena and Nanophotonics XVI
Markus Betz; Abdulhakem Y. Elezzabi; Jin-Joo Song; Kong-Thon Tsen, Editor(s)

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