Year: 2025
Type: article
Abstract: Since their introduction, weak measurements and weak values have served as a cornerstone for investigating quantum measurement theory, as well as a significant tool for quantum metrology and sensing. Here, it is shown how (anomalous) weak values can be reliably obtained with single quantum systems even without averaging over multiple experimental runs, thanks to a measurement protocol dubbed robust weak measurement . Specifically, robust weak measurements are exploited to extract the weak value of the polarization of heralded single photons, certifying the true single‐particle, nonclassical nature of weak values.
Source: Advanced Quantum Technologies
Institutions: Istituto Nazionale di Ricerca Metrologica, Instituto Nacional de Metrologia, Qualidade e Tecnologia, Politecnico di Milano, Max Planck Institute of Quantum Optics, Ludwig-Maximilians-Universität München, Bar-Ilan University, Tel Aviv University, Chapman University, Istituto Nazionale di Fisica Nucleare, Sezione di Torino
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,430
OpenAlex ID: W4409944059