Exciton entanglement in two coupled semiconductor microcrystallites

Yu Xi Liu, Cabin K. Özdemir, Adam Miranowicz, Masato Koashi, Nobuyuki Imoto

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Entanglement of the excitonic states in the system of two coupled semiconductor microcrystallites, whose sizes are much larger than the Bohr radius of the exciton in the bulk semiconductor but smaller than the relevant optical wavelength, is quantified in terms of the entropy of entanglement. It is observed that the nonlinear interaction between excitons increases the maximum values of the entropy of entanglement more than that of the linear coupling model. Therefore, a system of two coupled microcrystallites can be used as a good source of entanglement with fixed exciton number. The relationship between the entropy of entanglement and the population imbalance of two microcrystallites is numerically shown and the uppermost envelope function for them is estimated by applying the Jaynes principle.

Original languageEnglish (US)
Pages (from-to)4423-4436
Number of pages14
JournalJournal of Physics A: Mathematical and General
Volume37
Issue number15
DOIs
StatePublished - Apr 16 2004

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Physics and Astronomy(all)

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