Toward Spin Squeezing with Trapped Ions

Published

September 23, 2010

Author(s)

John J. Bollinger, Hermann Uys, Michael Biercuk, Joseph W. Britton

Abstract

Building robust instruments capable of making interferometric measurements with precision beyond the standard quantum limit remains an important goal in many metrology laboratories. We describe here the basic concepts underlying spin squeezing experiments which allow one to surpass this limit. In principle it is possible to reach the so-called Heisenberg limit which constitutes an improvement in precision by a factor \sqrt^N, where N is the number of particles on which the measurement is carried out. In particular, we focus on recent progress toward implementing spin squeezing with a cloud of beryllium ions in a Penning ion trap, via the geometric phase gate used more commonly for performing two-qubit entangling operations in quantum computing experiments.

Proceedings Title

AIP conference proceedings: "Quantum Africa 2010: Recent progress in the theoretical & experimental foundations of Quantum Technology

Volume

1469

Conference Dates

September 20-23, 2010

Conference Location

Durban,

Pub Type

Conferences

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Keywords

ion trap, Penning trap, quantum metrology, spin squeezing

Citation

Bollinger, J. , Uys, H. , Biercuk, M. and Britton, J. (2010), Toward Spin Squeezing with Trapped Ions, AIP conference proceedings: "Quantum Africa 2010: Recent progress in the theoretical & experimental foundations of Quantum Technology, Durban, , [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=909290 (Accessed October 1, 2025)