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) |
|---|---|
| Article number | 50009 |
| Journal | EPL |
| Volume | 77 |
| Issue number | 5 |
| DOIs | |
| State | Published - Mar 1 2007 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
A non-Markovian optical signature for detecting entanglement in coupled excitonic qubits. / Rodríguez, F. J.; Quiroga, L.; Johnson, Neil F.
In: EPL, Vol. 77, No. 5, 50009, 01.03.2007.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A non-Markovian optical signature for detecting entanglement in coupled excitonic qubits
AU - Rodríguez, F. J.
AU - Quiroga, L.
AU - Johnson, Neil F
PY - 2007/3/1
Y1 - 2007/3/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79051470647&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79051470647&partnerID=8YFLogxK
U2 - 10.1209/0295-5075/77/50009
DO - 10.1209/0295-5075/77/50009
M3 - Article
AN - SCOPUS:79051470647
VL - 77
JO - Europhysics Letters
JF - Europhysics Letters
SN - 0295-5075
IS - 5
M1 - 50009
ER -