publication . Preprint . Article . 2016

Phase estimation with squeezed single photons

Maria Popovic;
Open Access English
  • Published: 01 Jan 2016
  • Country: Italy
Abstract
We address the performance of an interferometric setup in which a squeezed single photon interferes at a beam splitter with a coherent state. Our analysis in based on both the quantum Fisher information and the sensitivity when a Mach-Zehnder setup is considered and the difference photocurrent is detected at the output. We compare our results with those obtained feeding the interferometer with a squeezed vacuum (with the same squeezing parameter of the squeezed single photon) and a coherent state in order to have the same total number of photons circulating in the interferometer. We find that for fixed squeezing parameter and total number of photons there is a t...
Subjects
arXiv: Physics::OpticsCondensed Matter::Quantum Gases
free text keywords: Quantum Physics, interferometry, squeezing, quantum estimation, Technology, T, interferometry; squeezing; quantum estimation, Settore FIS/03 - Fisica della Materia, Photocurrent, Quantum mechanics, Beam splitter, law.invention, law, Quantum efficiency, Physics, Photon, Coherent states, Amplitude, Quantum fisher information
Funded by
EC| QuProCS
Project
QuProCS
Quantum Probes for Complex Systems
  • Funder: European Commission (EC)
  • Project Code: 641277
  • Funding stream: H2020 | RIA
Communities
FET H2020FET PROACT: Quantum simulation
FET H2020FET PROACT: Quantum Probes for Complex Systems
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