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Experimental quantum probing measurements with no knowledge of the system-probe interaction
Tekijät: Henri Lyyra, Olli Siltanen, Jyrki Piilo, Subhashish Banerjee, Tom Kuusela
Kustantaja: AMER PHYSICAL SOC
Julkaisuvuosi: 2020
Journal: Physical Review A
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW A
Lehden akronyymi: PHYS REV A
Artikkelin numero: ARTN 022232
Vuosikerta: 102
Numero: 2
Sivujen määrä: 8
ISSN: 2469-9926
eISSN: 2469-9934
DOI: https://doi.org/10.1103/PhysRevA.102.022232
Verkko-osoite: https://doi.org/10.1103/PhysRevA.102.022232
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/50541756
In any natural science, measurements are the essential link between theory and observable reality. Is it possible to obtain accurate and relevant information via measurement whose action on the probed system is unknown? In other words, can one be convinced to know something about the nature without knowing in detail how the information was obtained? In this paper, we show that the answer is, surprisingly, yes. We construct and experimentally implement a quantum optical probing measurement where measurements on the probes, i.e., the photons' polarization states, are used to extract information on the systems, i.e., the frequency spectra of the same photons. Unlike the preexisting probing protocols, our measurement does not require any knowledge of the interaction between the probe and the system.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
