München 2004 – scientific programme

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Q: Quantenoptik und Photonik

Q 52: Postdeadline

Q 52.10: Talk

Thursday, March 25, 2004, 21:30–21:40, HS 225

Nonclassical Imaging for a Quantum Search of Ions in a Linear Trap — •Gombojav O. ARIUNBOLD^1,2, Girish S. Agarwal^1,3, Joachim von Zanthier^1,4, and Herbert Walther^1,4 — ¹Max-Planck-Institute for Quantum Optics, Hans-Koppfermann Str. 1, D-85748, Garching, Germany — ²Theoretical Physics Laboratory, National University of Mongolia, 210646, Ulaanbaatar, Mongolia — ³Physical Research Laboratory, Navrangpura, Ahmedabad-380 009, India — ⁴Sektion Physik der LMU, D-85748, Garching, Germany

We show how photon-photon spatial correlations in the light emitted by a system of N ions in a linear trap, interacting with an incident π-pulse, can be used to implement a quantum search algorithm. We demonstrate that just two measurements are sufficient to identify a non-radiating isotope in the chain instead of performing N/2 classical querries.