Inversion of exciton level splitting in quantum dots

Details Inversion of exciton level splitting in quantum dots Inversion of exciton level splitting in quantum dots

2006-01-30

arxiv.org/abs/quant-ph/0601198v1

Phys. Rev. B 72, 113305 (2005)

Physics

Quantum Physics

12 pages, 4 figures

Scientific paper

10.1103/PhysRevB.72.113305

The demonstration of degeneracy of the exciton spin states is an important step towards the production of entangled photons pairs from the biexciton cascade. We measure the fine structure of exciton and biexciton states for a large number of single InAs quantum dots in a GaAs matrix; the energetic splitting of the horizontally and vertically polarised components of the exciton doublet is shown to decrease as the exciton confinement decreases, crucially passing through zero and changing sign. Thermal annealing is shown to reduce the exciton confinement, thereby increasing the number of dots with splitting close to zero.

Affiliated with

Also associated with

No associations

Rating

Inversion of exciton level splitting in quantum dots does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Inversion of exciton level splitting in quantum dots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inversion of exciton level splitting in quantum dots will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-14633