Hamburg 2009 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 63: Quanteninformation: Quantencomputer
Q 63.5: Talk
Friday, March 6, 2009, 15:00–15:15, VMP 6 HS-A
Simple quantum algorithms at room temperature using a 3-qubit register in diamond — •Johannes Beck1, Phillip Neumann1, Norikazu Mizuochi2, Matthias Steiner1, Florian Rempp1, Vincent Jacques1, Fedor Jelezko1, and Jörg Wrachtrup1 — 13. Physikalisches Institut, Universität Stuttgart, D-70550 Stuttgart, Germany — 2Graduate School of Library, Information and Media Studies, University of Tsukuba, 1-2 Kasuga, Tsukuba-City, Ibaraki 305-8550, Japan
A small quantum register in diamond consisting of a single Nitrogen-Vacancy center electron spin coupled to two 13C nuclear spins has already been used to create robust multipartite entanglement in form of GHZ- and W-States at room temperature [1]. Now, focus is set upon experimental realization of elementary quantum applications, showing the feasibility of simple quantum algorithms at ambient conditions using such a quantum register. Transformation of Bell states one into another is demonstrated, corresponding to Alice’s operational part in a potential superdense coding protocol. Furthermore, a report on the progress regarding implementation of Deutsch’s algorithm with two qubits will be given.
[1] P. Neumann et al., Multipartite Entanglement Among Single Spins in Diamond, Science 320, 1326 (2008)