Title :

Magnetic Resonance with Squeezed Microwaves

Author(s) :

Bienfait, A. [Auteur]
Quantronics Group [QUANTRONICS]
Campagne-Ibarcq, P. [Auteur]
Quantronics Group [QUANTRONICS]
Kiilerich, A. h. [Auteur]
Aarhus University [Aarhus]
Zhou, Xin [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Quantronics Group [QUANTRONICS]
Probst, S. [Auteur]
Quantronics Group [QUANTRONICS]
Pla, J.  [Auteur]
University of New South Wales [Canberra Campus] [UNSW]
Schenkel, T. [Auteur]
Lawrence Berkeley National Laboratory [Berkeley] [LBNL]
Vion, D. [Auteur]
Quantronics Group [QUANTRONICS]
Estève, Daniel [Auteur]
Quantronics Group [QUANTRONICS]
Morton, J.  [Auteur]
University College of London [London] [UCL]
Moelmer, K. [Auteur]
Aarhus University [Aarhus]
Bertet, P. [Auteur]
Quantronics Group [QUANTRONICS]

Journal title :

Physical Review X

Publisher :

American Physical Society

Publication date :

2017-10

ISSN :

2160-3308

English keyword(s) :

Magnetism
Quantum Physics
Quantum Information

HAL domain(s) :

Physique [physics]

English abstract : [en]

Vacuum fluctuations of the electromagnetic field set a fundamental limit to the sensitivity of a variety of measurements, including magnetic resonance spectroscopy. We report the use of squeezed microwave fields, which are ...
Show more >Vacuum fluctuations of the electromagnetic field set a fundamental limit to the sensitivity of a variety of measurements, including magnetic resonance spectroscopy. We report the use of squeezed microwave fields, which are engineered quantum states of light for which fluctuations in one field quadrature are reduced below the vacuum level, to enhance the detection sensitivity of an ensemble of electronic spins at millikelvin temperatures. By shining a squeezed vacuum state on the input port of a microwave resonator containing the spins, we obtain a 1.2-dB noise reduction at the spectrometer output compared to the case of a vacuum input. This result constitutes a proof of principle of the application of quantum metrology to magnetic resonance spectroscopy.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL