Physics – Quantum Physics
Scientific paper
2003-01-20
Eur.Phys.J. D27 (2003) 169-180
Physics
Quantum Physics
REVTEX4 file, 12 pages, 3 tables, color figures
Scientific paper
10.1140/epjd/e2003-00250-2
We study several properties of distillation protocols to purify multilevel qubit states (qudits) when applied to a certain family of initial mixed bipartite states. We find that it is possible to use qudits states to increase the stability region obtained with the flow equations to distill qubits. In particular, for qutrits we get the phase diagram of the distillation process with a rich structure of fixed points. We investigate the large-$D$ limit of qudits protocols and find an analytical solution in the continuum limit. The general solution of the distillation recursion relations is presented in an appendix. We stress the notion of weight amplification for distillation protocols as opposed to the quantum amplitude amplification that appears in the Grover algorithm. Likewise, we investigate the relations between quantum distillation and quantum renormalization processes.
Martin-Delgado Miguel Angel
Navascues Miguel
No associations
LandOfFree
Distillation Protocols for Mixed States of Multilevel Qubits and the Quantum Renormalization Group does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Distillation Protocols for Mixed States of Multilevel Qubits and the Quantum Renormalization Group, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distillation Protocols for Mixed States of Multilevel Qubits and the Quantum Renormalization Group will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-307075