Quantum Polarimetry

TL;DR

This paper provides a comprehensive overview of quantum polarimetry, emphasizing the importance of quantum effects in polarization measurement and analysis for both classical and quantum light.

Contribution

It offers a self-contained review of quantum polarimetry, highlighting key concepts and differences from classical polarization measurement.

Findings

Quantum polarization properties are crucial for understanding single-photon experiments.

Quantum effects influence classical polarization measurements and interpretations.

The paper clarifies key concepts often neglected in classical polarimetry.

Abstract

Polarization is one of light's most versatile degrees of freedom for both classical and quantum applications. The ability to measure light's state of polarization and changes therein is thus essential; this is the science of polarimetry. It has become ever more apparent in recent years that the quantum nature of light's polarization properties is crucial, from explaining experiments with single or few photons to understanding the implications of quantum theory on classical polarization properties. We present a self-contained overview of quantum polarimetry, including discussions of classical and quantum polarization, their transformations, and measurements thereof. We use this platform to elucidate key concepts that are neglected when polarization and polarimetry are considered only from classical perspectives.