Scientific Results

Information-reality complementarity in photonic weak measurements

Year: 2018

Authors: Mancino L., Sbroscia M., Roccia E., Gianani I., Cimini V., Paternostro M., Barbieri M.

Autors Affiliation: [Mancino, Luca; Sbroscia, Marco; Roccia, Emanuele; Gianani, Ilaria; Cimini, Valeria; Barbieri, Marco] Univ Roma Tre, Dipartimento Scienze, Via Vasca Navale 84, I-00146 Rome, Italy.
[Paternostro, Mauro] Queens Univ Belfast, Sch Math & Phys, Ctr Theoret Atom Mol & Opt Phys, Belfast BT7 1NN, Antrim, North Ireland.
[Barbieri, Marco] CNR, Ist Nazl Ott, Largo Enrico Fermi 6, I-50125 Florence, Italy.

Abstract: The emergence of realistic properties is a key problem in understanding the quantum-to-classical transition. In this respect, measurements represent a way to interface quantum systems with the macroscopic world: these can be driven in the weak regime, where a reduced back-action can be imparted by choosing meter states able to extract different amounts of information. Here we explore the implications of such weak measurement for the variation of realistic properties of two-level quantum systems pre- and postmeasurement, and extend our investigations to the case of open systems implementing the measurements.

Journal/Review: PHYSICAL REVIEW A

Volume: 97 (6)      Pages from: 062108-1  to: 062108-4

KeyWords: physical reality; wave-function; quantum; state;
DOI: 10.1103/PhysRevA.97.062108

Citations: 3
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English