Yu-xi Liu et al 2004 J. Phys. A: Math. Gen. 37 4423 doi:10.1088/0305-4470/37/15/010
Exciton entanglement in two coupled semiconductor microcrystallites
Yu-xi Liu1, Şahin K Özdemir1,2, Adam Miranowicz1,2,3, Masato Koashi1,2 and Nobuyuki Imoto1,2,4,5
Show affiliationsEntanglement 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.
- PACS
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71.35.-y Excitons and related phenomena
03.67.Mn Entanglement measures, witnesses, and other characterizations
- MSC
- Subjects
- Dates
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Issue 15 (16 April 2004)
Received 23 June 2003, in final form 30 January 2004
Published 29 March 2004
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Exciton entanglement in two coupled semiconductor microcrystallites
Yu-xi Liu et al 2004 J. Phys. A: Math. Gen. 37 4423
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