| Issue |
EPL
Volume 89, Number 4, February 2010
|
|
|---|---|---|
| Article Number | 44002 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/89/44002 | |
| Published online | 09 March 2010 | |
Hyper-entangled photon pairs from single quantum dots
Key Laboratory of Quantum Information University of Science and Technology of China, CAS - Hefei, 230026,
PRC
Corresponding author: cfli@ustc.edu.cn
Received:
16
September
2009
Accepted:
9
February
2010
We propose a scheme to generate hyper-entangled photon pairs from single quantum dots (SQDs). Single photons emitted by SQD are manipulated to be entangled after post-selection. Crucially, exciton fine-structure splitting, which was previously deemed undesirable in similar schemes, is used here to produce photon pairs entangled in both frequency and polarization degrees of freedom. This hyper-entangled two-photon state is potentially more powerful than a normal entangled state for quantum state engineering and quantum information processing.
PACS: 42.50.-p – Quantum optics / 03.67.-a – Quantum information
© EPLA, 2010
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