Projekteja vuodessa
Abstrakti
Coupling electromagnetic waves in a cavity and mechanical vibrations via the radiation pressure of photons is a promising platform for investigations of quantum–mechanical properties of motion. A drawback is that the effect of one photon tends to be tiny, and hence one of the pressing challenges is to substantially increase the interaction strength. A novel scenario is to introduce into the setup a quantum two-level system (qubit), which, besides strengthening the coupling, allows for rich physics via strongly enhanced nonlinearities. Here we present a design of cavity optomechanics in the microwave frequency regime involving a Josephson junction qubit. We demonstrate boosting of the radiation–pressure interaction by six orders of magnitude, allowing to approach the strong coupling regime. We observe nonlinear phenomena at single-photon energies, such as an enhanced damping attributed to the qubit. This work opens up nonlinear cavity optomechanics as a plausible tool for the study of quantum properties of motion.
Alkuperäiskieli | Englanti |
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Artikkeli | 6981 |
Sivut | 1-6 |
Sivumäärä | 6 |
Julkaisu | Nature Communications |
Vuosikerta | 6 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 2015 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'Cavity optomechanics mediated by a quantum two-level system'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Projektit
- 3 Päättynyt
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CAVITYQPD: Cavity quantum phonon dynamics
Sillanpää, M. (Vastuullinen tutkija)
20/11/2014 → 31/12/2020
Projekti: EU: ERC grants
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Mesoscopic heattronics: thermal and nonequilibrium effects and fluctuations in nanoelectronics
Heikkilä, T. (Vastuullinen tutkija)
01/01/2010 → 31/12/2015
Projekti: EU: ERC grants
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Electromechanical quantum coherent systems
Sillanpää, M. (Vastuullinen tutkija)
01/01/2010 → 31/12/2014
Projekti: EU: ERC grants
Laitteet
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OtaNano – Kylmälaboratorio
Savin, A. (Manager) & Rissanen, A. (Other)
OtaNanoLaitteistot/tilat: Facility
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