Sensing microscopic noise events by frequent quantum measurements
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arXiv
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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| _version_ | 1866914708368392192 |
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| author | 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 |
| author_facet | 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 |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_12530 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Sensing microscopic noise events by frequent quantum measurements 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 Quantum Physics 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. |
| title | Sensing microscopic noise events by frequent quantum measurements |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2212.12530 |