Sensing microscopic noise events by frequent quantum measurements

التفاصيل البيبلوغرافية
العنوان: Sensing microscopic noise events by frequent quantum measurements
المؤلفون: Virzì, Salvatore, Knoll, Laura T., Avella, Alessio, Piacentini, Fabrizio, Gherardini, Stefano, Gramegna, Marco, Kurizki, Gershon, Kofman, Abraham G., Degiovanni, Ivo Pietro, Genovese, Marco, Caruso, Filippo
المصدر: Phys. Rev. Applied 21, 034014 (2024)
سنة النشر: 2022
المجموعة: Quantum Physics
مصطلحات موضوعية: Quantum Physics
الوصف: We propose and experimentally demonstrate a general method allowing us to unravel microscopic noise events that affect a continuous quantum variable. Such unraveling is achieved by frequent measurements of a discrete variable coupled to the continuous one. The experimental realization involves photons traversing a noisy channel. There, their polarization, whose coupling to the photons spatial wavepacket is subjected to stochastic noise, is frequently measured in the quantum Zeno regime. The measurements not only preserve the polarization state, but also enable the recording of the full noise statistics from the spatially-resolved detection of the photons emerging from the channel. This method proves the possibility of employing photons as quantum noise sensors and robust carriers of information.
Comment: 6 pages, 3 figures
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevApplied.21.034014
URL الوصول: http://arxiv.org/abs/2212.12530
رقم الأكسشن: edsarx.2212.12530
قاعدة البيانات: arXiv