Hyper-entangled photon pairs from single quantum dots
Key Laboratory of Quantum Information University of Science and Technology of China, CAS - Hefei, 230026,
Corresponding author: firstname.lastname@example.org
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