Phase control of a path-entangled photon state by a deformable membrane mirror

Cristian Bonato; Stefano Bonora; Andrea Chiuri; Paolo Mataloni; Giorgio Milani; Giuseppe Vallone; Paolo Villoresi

doi:10.1364/JOSAB.27.00A175

Phase control of a path-entangled photon state by a deformable membrane mirror

Cristian Bonato^*, Stefano Bonora, Andrea Chiuri, Paolo Mataloni, Giorgio Milani, Giuseppe Vallone, Paolo Villoresi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We demonstrate the potentialities of a deformable mirror for closed-loop control of a two-photon pathentangled state subject to phase fluctuations. A custom-made membrane mirror is used to set a relative phase shift between the arms of an interferometric apparatus. The control algorithm estimates the phase of the quantum state by measurements of the coincidence events at the output ports of the interferometer and uses the measurement results to provide a feedback signal to the deformable mirror. Stabilization of the coincidence rate to within 1.5 standard deviation of the Poissonian noise is demonstrated over 2000 s.

Original language	English
Pages (from-to)	A175-A180
Number of pages	6
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	27
Issue number	6
DOIs	https://doi.org/10.1364/JOSAB.27.00A175
Publication status	Published - 1 Jun 2010

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Atomic and Molecular Physics, and Optics

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10.1364/JOSAB.27.00A175

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abstract = "We demonstrate the potentialities of a deformable mirror for closed-loop control of a two-photon pathentangled state subject to phase fluctuations. A custom-made membrane mirror is used to set a relative phase shift between the arms of an interferometric apparatus. The control algorithm estimates the phase of the quantum state by measurements of the coincidence events at the output ports of the interferometer and uses the measurement results to provide a feedback signal to the deformable mirror. Stabilization of the coincidence rate to within 1.5 standard deviation of the Poissonian noise is demonstrated over 2000 s.",

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AU - Bonato, Cristian

AU - Bonora, Stefano

AU - Chiuri, Andrea

AU - Mataloni, Paolo

AU - Milani, Giorgio

AU - Vallone, Giuseppe

AU - Villoresi, Paolo

PY - 2010/6/1

Y1 - 2010/6/1

N2 - We demonstrate the potentialities of a deformable mirror for closed-loop control of a two-photon pathentangled state subject to phase fluctuations. A custom-made membrane mirror is used to set a relative phase shift between the arms of an interferometric apparatus. The control algorithm estimates the phase of the quantum state by measurements of the coincidence events at the output ports of the interferometer and uses the measurement results to provide a feedback signal to the deformable mirror. Stabilization of the coincidence rate to within 1.5 standard deviation of the Poissonian noise is demonstrated over 2000 s.

AB - We demonstrate the potentialities of a deformable mirror for closed-loop control of a two-photon pathentangled state subject to phase fluctuations. A custom-made membrane mirror is used to set a relative phase shift between the arms of an interferometric apparatus. The control algorithm estimates the phase of the quantum state by measurements of the coincidence events at the output ports of the interferometer and uses the measurement results to provide a feedback signal to the deformable mirror. Stabilization of the coincidence rate to within 1.5 standard deviation of the Poissonian noise is demonstrated over 2000 s.

UR - https://www.scopus.com/pages/publications/77955696265

U2 - 10.1364/JOSAB.27.00A175

DO - 10.1364/JOSAB.27.00A175

M3 - Article

AN - SCOPUS:77955696265

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JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

IS - 6

ER -

Phase control of a path-entangled photon state by a deformable membrane mirror

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