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Thermal quantum metrology in memoryless and correlated environments

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Thermal quantum metrology in memoryless and correlated environments. / Spedalieri, Gaetana; Lupo, Cosmo; Braunstein, Samuel L.; Pirandola, Stefano.

In: Quantum Sci. Technol., Vol. 4, 015008, 16.10.2018.

Research output: Contribution to journalArticlepeer-review

Harvard

Spedalieri, G, Lupo, C, Braunstein, SL & Pirandola, S 2018, 'Thermal quantum metrology in memoryless and correlated environments', Quantum Sci. Technol., vol. 4, 015008. <http://iopscience.iop.org/article/10.1088/2058-9565/aae284/meta>

APA

Spedalieri, G., Lupo, C., Braunstein, S. L., & Pirandola, S. (2018). Thermal quantum metrology in memoryless and correlated environments. Quantum Sci. Technol., 4, [015008]. http://iopscience.iop.org/article/10.1088/2058-9565/aae284/meta

Vancouver

Spedalieri G, Lupo C, Braunstein SL, Pirandola S. Thermal quantum metrology in memoryless and correlated environments. Quantum Sci. Technol. 2018 Oct 16;4. 015008.

Author

Spedalieri, Gaetana ; Lupo, Cosmo ; Braunstein, Samuel L. ; Pirandola, Stefano. / Thermal quantum metrology in memoryless and correlated environments. In: Quantum Sci. Technol. 2018 ; Vol. 4.

Bibtex - Download

@article{ee5966482afb48c99f7cfab4c0b1cab3,
title = "Thermal quantum metrology in memoryless and correlated environments",
abstract = "In bosonic quantum metrology, the estimate of a loss parameter is typically performed by means of pure states, such as coherent, squeezed or entangled states, while mixed thermal probes are discarded for their inferior performance. Here we show that thermal sources with suitable correlations can be engineered in such a way to approach, or even surpass, the error scaling of coherent states in the presence of general Gaussian decoherence. Our findings pave the way for practical quantum metrology with thermal sources in optical instruments (e.g., photometers) or at different wavelengths (e.g., far infrared, microwave or X-ray) where the generation of quantum features, such as coherence, squeezing or entanglement, may be extremely challenging.",
keywords = "quant-ph, physics.optics",
author = "Gaetana Spedalieri and Cosmo Lupo and Braunstein, {Samuel L.} and Stefano Pirandola",
note = "This is an author-produced version of the published paper. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. Further copying may not be permitted; contact the publisher for details ",
year = "2018",
month = oct,
day = "16",
language = "English",
volume = "4",
journal = "Quantum Sci. Technol.",
issn = "2058-9565",
publisher = "Institute of Physics Publishing",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Thermal quantum metrology in memoryless and correlated environments

AU - Spedalieri, Gaetana

AU - Lupo, Cosmo

AU - Braunstein, Samuel L.

AU - Pirandola, Stefano

N1 - This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

PY - 2018/10/16

Y1 - 2018/10/16

N2 - In bosonic quantum metrology, the estimate of a loss parameter is typically performed by means of pure states, such as coherent, squeezed or entangled states, while mixed thermal probes are discarded for their inferior performance. Here we show that thermal sources with suitable correlations can be engineered in such a way to approach, or even surpass, the error scaling of coherent states in the presence of general Gaussian decoherence. Our findings pave the way for practical quantum metrology with thermal sources in optical instruments (e.g., photometers) or at different wavelengths (e.g., far infrared, microwave or X-ray) where the generation of quantum features, such as coherence, squeezing or entanglement, may be extremely challenging.

AB - In bosonic quantum metrology, the estimate of a loss parameter is typically performed by means of pure states, such as coherent, squeezed or entangled states, while mixed thermal probes are discarded for their inferior performance. Here we show that thermal sources with suitable correlations can be engineered in such a way to approach, or even surpass, the error scaling of coherent states in the presence of general Gaussian decoherence. Our findings pave the way for practical quantum metrology with thermal sources in optical instruments (e.g., photometers) or at different wavelengths (e.g., far infrared, microwave or X-ray) where the generation of quantum features, such as coherence, squeezing or entanglement, may be extremely challenging.

KW - quant-ph

KW - physics.optics

M3 - Article

VL - 4

JO - Quantum Sci. Technol.

JF - Quantum Sci. Technol.

SN - 2058-9565

M1 - 015008

ER -