https://doi.org/10.1140/epjb/e2012-20876-9
Regular Article
Self-assembled quantum dot based quantum memory
1 College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, P.R. China
2 Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen, Denmark
3 Department of Physics, Key Laboratory of Quantum Information, USTC, Hefei 230026, P.R. China
a
e-mail: qinw@nbi.ku.dk
Received: 28 October 2011
Received in final form: 4 January 2012
Published online: 27 June 2012
A proposal on using self-assembled single-quantum-dot devices to store entangled photon pairs has been presented. In this scheme, the entanglement information can be stored in the nuclear-hole complexes by exciting electron-hole pairs in two separated quantum dots and mapping the spin states from electrons to corresponding nuclear ensembles. It has also been demonstrated that it is feasible to realize this scheme with current technology, and that when the storage-readout cycle is successful, a high storage fidelity can be achieved even under imperfect experimental conditions.
Key words: Solid State and Materials
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2012
