In the quantum sensing context most of the efforts to design novel quantum techniques of sensing have been constrained to idealized, noise-free scenarios, in which effects of environmental disturbances could be neglected. In this work, we propose to exploit optical parametric amplification to boost interferometry sensitivity in the presence of losses in a minimally invasive scenario. By performing the amplification process on the microscopic probe after the interaction with the sample, we can beat the losses' detrimental effect on the phase measurement which affects the single-photon state after its interaction with the sample, and thus improve the achievable sensitivity.

Enhanced Resolution of Lossy Interferometry by Coherent Amplification of Single Photons / Vitelli, Chiara; Spagnolo, Nicolo'; Lorenzo, Toffoli; Sciarrino, Fabio; DE MARTINI, Francesco. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 105:11(2010). [10.1103/physrevlett.105.113602]

Enhanced Resolution of Lossy Interferometry by Coherent Amplification of Single Photons

VITELLI, Chiara;SPAGNOLO, NICOLO';SCIARRINO, Fabio;DE MARTINI, Francesco
2010

Abstract

In the quantum sensing context most of the efforts to design novel quantum techniques of sensing have been constrained to idealized, noise-free scenarios, in which effects of environmental disturbances could be neglected. In this work, we propose to exploit optical parametric amplification to boost interferometry sensitivity in the presence of losses in a minimally invasive scenario. By performing the amplification process on the microscopic probe after the interaction with the sample, we can beat the losses' detrimental effect on the phase measurement which affects the single-photon state after its interaction with the sample, and thus improve the achievable sensitivity.
2010
01 Pubblicazione su rivista::01a Articolo in rivista
Enhanced Resolution of Lossy Interferometry by Coherent Amplification of Single Photons / Vitelli, Chiara; Spagnolo, Nicolo'; Lorenzo, Toffoli; Sciarrino, Fabio; DE MARTINI, Francesco. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 105:11(2010). [10.1103/physrevlett.105.113602]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/140028
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