A quantum spectrometer using a pair of phase-controlled spatial light modulators for superresolution in quantum sensing

• URL: http://arxiv.org/abs/2405.08456v2
• Date: Mon, 3 Jun 2024 04:43:51 GMT
• Title: A quantum spectrometer using a pair of phase-controlled spatial light modulators for superresolution in quantum sensing
• Authors: Byoung S. Ham,
• Abstract summary: Superresolution is a unique quantum feature generated by N00N states or phase-controlled coherent photons via projection measurements in a Mach-Zehnder interferometer (MZI) Superresolution has no direct relation with supersensitivity in quantum sensing and has a potential application for the precision measurement of an unknown signal frequency.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Superresolution is a unique quantum feature generated by N00N states or phase-controlled coherent photons via projection measurements in a Mach-Zehnder interferometer (MZI). Superresolution has no direct relation with supersensitivity in quantum sensing and has a potential application for the precision measurement of an unknown signal frequency. Recently, phase-controlled quantum erasers have been demonstrated for superresolution using classical light of a continuous-wave laser to overcome the diffraction limit in classical physics and to solve the limited scalability in N00N state-based quantum sensing. Here, a quantum spectrometer is presented for the macroscopic superresolution using phase-controlled spatial light modulators (SLMs) in MZI. For validity, a general solution of the superresolution is derived from the SLM-based projection measurements and an unprecedented resolution is numerically confirmed for an unknown frequency of light.

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