Extremely High Q-factor Mechanical Modes in Quartz Bulk Acoustic Wave Resonators at MilliKelvin Temperature
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Extremely High Q-factor Mechanical Modes in Quartz Bulk Acoustic Wave Resonators at MilliKelvin Temperature |
| Type de publication | Conference Paper |
| Year of Publication | 2014 |
| Auteurs | Goryachev M., Creedon D.L, Ivanov E.N, Galliou S., Bourquin R., Tobar M.E |
| Editor | Schmiedmayer HJ, Walther P |
| Conference Name | ELEVENTH INTERNATIONAL CONFERENCE ON QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTATION (QCMC) |
| Publisher | EU Integrating Project SOLID; EU Integrating Project Q ESSENCE; EU Integrating Project AQUTE; McCormick NW Engn Univ; Quantum Informat Theory Grp; Res Lab Elect MIT; Austrian Inst Technol; Pfeiffer Vacuum Austria GmbH; Topt Photon; Springer Verlag; Thorla |
| Conference Location | 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA |
| ISBN Number | 978-0-7354-1272-9 |
| Résumé | We demonstrate that Bulk Acoustic Wave (BAW) quartz resonator cooled down to millikelvin temperatures are excellent building blocks for hybrid quantum systems with extremely long coherence times. Two overtones of the longitudinal mode at frequencies of 15.6 and 65.4 MHz demonstrate a maximum f.Q product of 7.8x10(16) Hz. With this result, the Q-factor in such devices near the quantum ground state can be four orders of magnitude better than previously attained in other mechanical systems. Tested quartz resonators possess the ultra low acoustic losses crucial for electromagnetic cooling to the phonon ground state. |
| DOI | 10.1063/1.4903104 |