Experimental quantum probing measurements with no knowledge of the system-probe interaction
Lyyra, H., Siltanen, O., Piilo, J., Banerjee, S., & Kuusela, T. (2020). Experimental quantum probing measurements with no knowledge of the system-probe interaction. Physical Review A, 102(2), Article 022232. https://doi.org/10.1103/PhysRevA.102.022232
Published inPhysical Review A
© 2020 American Physical Society
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.
PublisherAmerican Physical Society
Publication in research information system
MetadataShow full item record
Additional information about fundingThis work was financially supported by the Academy of Finland via the Centre of Excellence program (Project No. 312058).
Showing items with similar title or keywords.
Liu, Zhao-Di; Sun, Yong-Nan; Liu, Bi-Heng; Li, Chuan-Feng; Guo, Guang-Can; Raja, Sina Hamedani; Lyyra, Henri; Piilo, Jyrki (American Physical Society, 2020)Open quantum systems and study of decoherence are important for our fundamental understanding of quantum physical phenomena. For practical purposes, a large number of quantum protocols exist that exploit quantum resources, ...
Sakharovskiy, Konstantin (2022)Tässä kirjallisuuskatsaukseksi rakennetussa opinnäytetyössä annamme lukijalle yleiskatsauksen kvanttilaskennan piirimallin peruselementeistä, universaaleistaporteista. Esittelemme alustavat tiedot, joihin tarvitaan ...
Massel, Francesco (American Physical Society, 2017)We propose here a setup to generate and evaluate the entanglement between two mechanical resonators in a cavity optomechanical setting. As in previous proposals, our scheme includes two driving pumps allowing for the ...
Shcherbina, Masha; Tirozzi, Brunello; Tassi, Camillo (MDPI, 2020)We find the free-energy in the thermodynamic limit of a one-dimensional XY model associated to a system of N qubits. The coupling among the σzi is a long range two-body random interaction. The randomness in the couplings ...
Ikonen, Joni; Möttönen, Mikko (IOP Publishing; Deutsche Physikalische Gesellschaft, 2018)Control and utilization of coherent states of microwave photons is a ubiquitous requirement for the present and near-future implementations of solid-state quantum computers. The rate at which the photon state responds to ...