Nonclassical imaging for a quantum search of trapped ions

Journal article

Publication Details

Author(s): Agarwal GS, Ariunbold GO, von Zanthier J, Walther H
Journal: Physical Review A
Publisher: American Physical Society
Publication year: 2004
Volume: 70
Journal issue: 6
ISSN: 1050-2947


We discuss a simple search problem which can be pursued with different methods, either on a classical or on a quantum basis. The system is represented by a chain of trapped ions. The ion to be searched for is a member of that chain, consisting, however, of an isotopic species different from the others. It is shown that classical imaging may lead to the final result as fast as quantum imaging. However, for the discussed case the quantum method gives more flexibility and higher precision when the number of ions considered in the chain increases. In addition, interferences are observable even when the distances between the ions are smaller than half a wavelength of the incident light.

FAU Authors / FAU Editors

von Zanthier, Joachim Prof. Dr.
Professur für Experimentalphysik

External institutions with authors

Max-Planck-Institute of Quantum Optics (MPQ) / Max-Planck-Institut für Quantenoptik
Oklahoma State University

How to cite

Agarwal, G.S., Ariunbold, G.O., von Zanthier, J., & Walther, H. (2004). Nonclassical imaging for a quantum search of trapped ions. Physical Review A, 70(6).

Agarwal, Girish S., et al. "Nonclassical imaging for a quantum search of trapped ions." Physical Review A 70.6 (2004).


Last updated on 2018-10-07 at 07:23