Proposal for measurment of harmonic oscillator Berry phase in ion traps

Details Proposal for measurment of harmonic oscillator Berry phase in ion traps Proposal for measurment of harmonic oscillator Berry phase in ion traps

2000-06-24

arxiv.org/abs/quant-ph/0006112v3

Physics

Quantum Physics

Replaced with revised version

Scientific paper

10.1103/PhysRevLett.85.5018

We propose a scheme for measuring the Berry phase in the vibrational degree of freedom of a trapped ion. Starting from the ion in a vibrational coherent state we show how to reverse the sign of the coherent state amplitude by using a purely geometric phase. This can then be detected through the internal degrees of freedom of the ion. Our method can be applied to preparation of Schr\"odinger cat states.

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