High-efficiency interaction-free measurements using a stabilized Fabry–Perot cavity
N Namekata, S Inoue - Journal of Physics B: Atomic, Molecular …, 2006 - iopscience.iop.org
Journal of Physics B: Atomic, Molecular and Optical Physics, 2006•iopscience.iop.org
Using a Fabry–Pérot cavity with high transmittivity, we have realized high-efficiency
interaction-free measurements. The required stability of the cavity was achieved by
employing the Pound-Drever feedback scheme without disturbing the measurement. For
both an absorbing and a transparent object, the probability of correctly determining the
presence or absence of the object (the efficiency of the interaction-free measurement) was
found to be 88%.
interaction-free measurements. The required stability of the cavity was achieved by
employing the Pound-Drever feedback scheme without disturbing the measurement. For
both an absorbing and a transparent object, the probability of correctly determining the
presence or absence of the object (the efficiency of the interaction-free measurement) was
found to be 88%.
Abstract
Using a Fabry–Pérot cavity with high transmittivity, we have realized high-efficiency interaction-free measurements. The required stability of the cavity was achieved by employing the Pound-Drever feedback scheme without disturbing the measurement. For both an absorbing and a transparent object, the probability of correctly determining the presence or absence of the object (the efficiency of the interaction-free measurement) was found to be 88%.
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