Entanglement Enabled Intensity Interferometry of different wavelengths of light
Name
1607.05719.pdf
Description
Submitted version
Size
605.68 KB
Format
Adobe PDF
Checksum (MD5)
a0399a1b336243f8b14066bc0fc63d47
Author(s)
Cotler, Jordan
Wilczek, Frank
Borish, Victoria
Date Issued
2021
Journal
Annals of Physics
Publisher
Elsevier BV
Citation
Cotler, Jordan, Wilczek, Frank and Borish, Victoria. 2021. "Entanglement Enabled Intensity Interferometry of different wavelengths of light." Annals of Physics, 424.
Version
Original manuscript
Abstract
© 2020 Elsevier Inc. We propose methods to perform intensity interferometry of photons having two different wavelengths. Distinguishable particles typically cannot interfere with each other, but we overcome that obstacle by processing the particles via entanglement and projection so that they lead to the same final state at the detection apparatus. Specifically, we discuss how quasi-phase-matched nonlinear crystals can be used to convert a quantum superposition of light of different wavelengths onto a common wavelength, while preserving the phase information essential for their meaningful interference. We thereby gain access to a host of new observables, which can probe subtle frequency correlations and entanglement. Further, we generalize the van Cittert–Zernike formula for the intensity interferometry of extended sources, demonstrate how our proposal supports enhanced resolution of sources with different spectral character, and suggest potential applications.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licens
Persistent DSpace Link
DOI of Published Version
10.1016/J.AOP.2020.168346
