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Quantum dynamics and quantum state transfer between separated nitrogen-vacancy centers embedded in photonic crystal cavities.
- Source :
-
Physical Review A: Atomic, Molecular & Optical Physics . Oct2011, Vol. 84 Issue 4-B, p043849-1-043849-10. 10p. - Publication Year :
- 2011
-
Abstract
- We investigate dynamics of a laser-driven and dissipative system consisting of two nitrogen-vacancy (N-V) centers embedded in two spatially separated single-mode nanocavities in a planar photonic crystal (PC). Spontaneous emission from the excited states of the N-V centers can be effectively suppressed by virtue of the Raman transition in the dispersive regime. The system displays a series of damped oscillations under various experimental situations, where we solve the time-dependent Schr6dinger equation analytically for arbitrary values of the hopping and PC-N- V coupling strengths. In particular, our results indicate that some special values should be taken for the hopping strength if we hope to have high-fidelity quantum state transfer between the two distant N-V centers. We have also analyzed the relevant entanglement dynamics in the presence of decoherence. The experimental feasibility and challenge are justified using currently available technology. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10502947
- Volume :
- 84
- Issue :
- 4-B
- Database :
- Academic Search Index
- Journal :
- Physical Review A: Atomic, Molecular & Optical Physics
- Publication Type :
- Periodical
- Accession number :
- 70317314
- Full Text :
- https://doi.org/10.1103/PhysRevA.84.043849