Title :
Experimental indications for coherent coupling of two quantum dots
Author :
Ortner, G. ; Larionov, Andrey ; Yugova, I. ; Baldassarri HvH, G. ; Bayer, M. ; Hawrylak, P. ; Fafard, S. ; Wasilewski, Z.
Author_Institution :
Experimentelle Phys. II, Dortmund
Abstract :
The coherent coupling of exciton states in single quantum dot molecules has been demonstrated by various experiments. Anti-crossings in the fine structure of excitons have been observed as well as diamagnetic shifts in Faraday- and Voigt-configuration which depend systematically on the width of the barrier between the two dots. Similar systematic dependences have been found for spin-splitting. Further indications have been obtained by comparison of excitation dependent studies of quantum dot molecules and single quantum dots
Keywords :
Faraday effect; excited states; excitons; fine structure; photoluminescence; semiconductor quantum dots; Faraday-configuration; Voigt-configuration; anticrossings; coherent coupling; diamagnetic shifts; exciton states; fine structure; quantum dot molecules; spin-splitting;
Conference_Titel :
Quantum Electronics Conference, 2004. (IQEC). International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-778-4
