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Open Quantum Systems Decoherence

Enhanced signal-to-noise ratio in Hanbury Brown Twiss interferometry by parametric amplification

arXiv
Authors: Xiaoping Ma, Chenglong You, Sushovit Adhikari, Jonathan P. Dowling, Hwang Lee

Year

2017

Paper ID

24629

Status

Preprint

Abstract Read

~2 min

Abstract Words

86

Citations

N/A

Abstract

The Hanbury Brown Twiss (HBT) interferometer was proposed to observe intensity correlations of starlight to measure a star's angular diameter. As the intensity of light that reaches the detector from a star is very weak, one cannot usually get a workable signal-to-noise ratio. We propose an improved HBT interferometric scheme introducing optical parametric amplifiers into the system, to amplify the correlation signal, which is used to calculate the angular diameter. With the use of optical parametric amplifiers, the signal-to-noise ratio can be increased up to 400 percent.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • The Hanbury Brown Twiss (HBT) interferometer was proposed to observe intensity correlations of starlight to measure a star's angular diameter.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1712.02887 [2] arXiv https://arxiv.org/abs/1712.02887 [3] Publisher https://arxiv.org/abs/1712.02887

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