Abstract
We identify an optical signature for detecting entanglement in experimental nanostructure systems comprising coupled excitonic qubits. This signature owes its strength to non-Markovian dynamical effects in the second-order temporal coherence function of the emitted radiation. We calculate autocorrelation and cross-correlation functions for both selective and collective light excitation, and prove that the coherence properties of the emitted light do indeed carry information about the entanglement of the initial multi-qubit state. We also show that this signature can survive in the presence of a noisy environment.
Original language | English (US) |
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Article number | 50009 |
Journal | EPL |
Volume | 77 |
Issue number | 5 |
DOIs | |
State | Published - Mar 1 2007 |
ASJC Scopus subject areas
- Physics and Astronomy(all)