Symmetries and the Polarized Optical Spectra of Exciton Complexes in Quantum Dots
2011 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 107, no 12, 127403- p.Article in journal (Refereed) Published
A systematic and simple theoretical approach is proposed to analyze true degeneracies and polarized decay patterns of exciton complexes in semiconductor quantum dots. The results provide reliable spectral signatures for efficient symmetry characterization, and predict original features for low C(2 nu) and high C(3 nu) symmetries. Excellent agreement with single quantum dot spectroscopy of real pyramidal InGaAs/AlGaAs quantum dots grown along  is demonstrated. The high sensitivity of biexciton quantum states to exact high symmetry can be turned into an efficient uninvasive postgrowth selection procedure for quantum entanglement applications.
Place, publisher, year, edition, pages
American Physical Society , 2011. Vol. 107, no 12, 127403- p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-71219DOI: 10.1103/PhysRevLett.107.127403ISI: 000295003400013OAI: oai:DiVA.org:liu-71219DiVA: diva2:446348