Hamburg 2009 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 55: Poster III
Q 55.11: Poster
Donnerstag, 5. März 2009, 16:30–19:00, VMP 8 Foyer
Generation of Total Angular Momentum Eigenstates in Remote Qubits — •Andreas Maser1, Uwe Schilling1, Thierry Bastin2, Enrique Solano3, Christoph Thiel1, and Joachim von Zanthier1 — 1Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, Erlangen, Germany — 2Institut de Physique Nucléaire, Atomique et de Spectroscopie, Université de Liège au Sart Tilman, Liège, Belgium — 3Departamento de Química-Física, Universidad del País Vasco - Euskal Herriko Unibertsitatea, Bilbao, Spain
We propose a scheme enabling the universal coupling of angular momentum of N remote noninteracting spin-1/2 particles (qubits) using linear optical tools only. Hereby, an arbitrary number of particles can be entangled in their two-level long-lived ground states via the use of suitably designed projective measurements. In reference to the algorithm describing the coupling of angular momentum of individual spin-1/2 particles, our method couples successively remote qubit states to a multi-qubit compound system. Thereby, it offers access to the entire coupled basis of an N-qubit compound system of dimension 2N, i.e., to the 2N symmetric and nonsymmetric total angular momentum eigenstates [1].
[1] A. Maser et al., quant-ph/0812.0959 (2008).