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Title: Visibility bound caused by a distinguishable noise particle

Abstract

We investigate how the distinguishability of a 'noise' particle degrades interference of the 'signal' particle. The signal, represented by an equatorial state of a photonic qubit, is mixed with noise, represented by another photonic qubit, via linear coupling on a beam splitter. We report on the degradation of the signal photon interference depending on the degree of indistinguishability between the signal and noise photons. When the photons are completely distinguishable in principle but technically indistinguishable, the visibility drops to the value 1/{radical}(2). As the photons become more indistinguishable, the maximal visibility increases and reaches the unit value for completely indistinguishable photons. We have examined this effect experimentally using a setup with a fiber-optics two-photon Mach-Zehnder interferometer.

Authors:
; ; ;  [1];  [2]
  1. Department of Optics, Faculty of Science, Palacky University, 17. listopadu 12, CZ-771 46 Olomouc (Czech Republic)
  2. Joint Laboratory of Optics of Palacky University and Institute of Physics of the Academy of Sciences of the Czech Republic, 17. listopadu 50A, CZ-779 07 Olomouc (Czech Republic)
Publication Date:
OSTI Identifier:
21544587
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 83; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevA.83.042320; (c) 2011 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BEAM SPLITTING; COUPLING; FIBER OPTICS; INTERFERENCE; MACH-ZEHNDER INTERFEROMETER; NOISE; PHOTONS; SIGNALS; BOSONS; ELEMENTARY PARTICLES; INTERFEROMETERS; MASSLESS PARTICLES; MEASURING INSTRUMENTS; OPTICS

Citation Formats

Gavenda, Miroslav, Celechovska, Lucie, Dusek, Miloslav, Filip, Radim, and Soubusta, Jan. Visibility bound caused by a distinguishable noise particle. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.83.042320.
Gavenda, Miroslav, Celechovska, Lucie, Dusek, Miloslav, Filip, Radim, & Soubusta, Jan. Visibility bound caused by a distinguishable noise particle. United States. https://doi.org/10.1103/PHYSREVA.83.042320
Gavenda, Miroslav, Celechovska, Lucie, Dusek, Miloslav, Filip, Radim, and Soubusta, Jan. 2011. "Visibility bound caused by a distinguishable noise particle". United States. https://doi.org/10.1103/PHYSREVA.83.042320.
@article{osti_21544587,
title = {Visibility bound caused by a distinguishable noise particle},
author = {Gavenda, Miroslav and Celechovska, Lucie and Dusek, Miloslav and Filip, Radim and Soubusta, Jan},
abstractNote = {We investigate how the distinguishability of a 'noise' particle degrades interference of the 'signal' particle. The signal, represented by an equatorial state of a photonic qubit, is mixed with noise, represented by another photonic qubit, via linear coupling on a beam splitter. We report on the degradation of the signal photon interference depending on the degree of indistinguishability between the signal and noise photons. When the photons are completely distinguishable in principle but technically indistinguishable, the visibility drops to the value 1/{radical}(2). As the photons become more indistinguishable, the maximal visibility increases and reaches the unit value for completely indistinguishable photons. We have examined this effect experimentally using a setup with a fiber-optics two-photon Mach-Zehnder interferometer.},
doi = {10.1103/PHYSREVA.83.042320},
url = {https://www.osti.gov/biblio/21544587}, journal = {Physical Review. A},
issn = {1050-2947},
number = 4,
volume = 83,
place = {United States},
year = {Fri Apr 15 00:00:00 EDT 2011},
month = {Fri Apr 15 00:00:00 EDT 2011}
}