We present a detailed description of the experiment realizing for the first time a protective measurement, a novel measurement protocol which combines weak interactions with a "protection mechanism" preserving the measured state coherence during the whole measurement process. Furthermore, protective measurement allows finding the expectation value of an observable, i.e., an inherently statistical quantity, by measuring a single particle, without the need for any statistics. This peculiar property, in sharp contrast to the framework of traditional (projective) quantum measurement, might constitute a groundbreaking advance for several quantum technology related fields.

Protective Measurement-A New Quantum Measurement Paradigm: Detailed Description of the First Realization / Rebufello, E; Piacentini, F; Avella, A; Lussana, R; Villa, F; Tosi, A; Gramegna, M; Brida, G; Cohen, E; Vaidman, L; Degiovanni, Ip; Genovese, M. - In: APPLIED SCIENCES. - ISSN 2076-3417. - 11:9(2021), p. 4260. [10.3390/app11094260]

Protective Measurement-A New Quantum Measurement Paradigm: Detailed Description of the First Realization

Rebufello, E;Piacentini, F
;
Avella, A;Gramegna, M;Brida, G;Degiovanni, IP;Genovese, M
2021

Abstract

We present a detailed description of the experiment realizing for the first time a protective measurement, a novel measurement protocol which combines weak interactions with a "protection mechanism" preserving the measured state coherence during the whole measurement process. Furthermore, protective measurement allows finding the expectation value of an observable, i.e., an inherently statistical quantity, by measuring a single particle, without the need for any statistics. This peculiar property, in sharp contrast to the framework of traditional (projective) quantum measurement, might constitute a groundbreaking advance for several quantum technology related fields.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/72894
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