Quantum Phase Estimation Algorithm with Performance Below the Heisenberg Limit in an Interferometer with Coherent State Light

Scott Roger Shepard

doi:10.1364/SENSORS.2016.SeW2E.5

Advanced Photonics 2016 (IPR, NOMA, Sensors, Networks, SPPCom, SOF)
OSA Technical Digest (online) (Optica Publishing Group, 2016),
paper SeW2E.5
•https://doi.org/10.1364/SENSORS.2016.SeW2E.5

Quantum Phase Estimation Algorithm with Performance Below the Heisenberg Limit in an Interferometer with Coherent State Light

Scott Roger Shepard

Optical Sensors 2016

Vancouver Canada
18–20 July 2016
ISBN: 978-1-943580-14-9

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Micro- and Nano- Engineered Sensors I (SeW2E)

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S. R. Shepard, "Quantum Phase Estimation Algorithm with Performance Below the Heisenberg Limit in an Interferometer with Coherent State Light," in Advanced Photonics 2016 (IPR, NOMA, Sensors, Networks, SPPCom, SOF), OSA Technical Digest (online) (Optica Publishing Group, 2016), paper SeW2E.5.

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Abstract

We demonstrate an algorithm which for low intensity coherent states can provide phase estimation accuracies that are over four orders of magnitude below the Heisenberg limit within the apparatus of an SU(2) interferometer.

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