| Full text | |
| Author(s): |
Mayor, Felix M.
;
Malik, Sultan
;
Primo, Andre G.
;
Gyger, Samuel
;
Jiang, Wentao
;
Alegre, Thiago P. M.
;
Safavi-Naeini, Amir H.
Total Authors: 7
|
| Document type: | Journal article |
| Source: | NATURE COMMUNICATIONS; v. 16, n. 1, p. 7-pg., 2025-03-15. |
| Abstract | |
Integrated optomechanical systems are a leading platform for manipulating, sensing, and distributing quantum information, but are limited by residual optical heating. Here, we demonstrate a two-dimensional optomechanical crystal (OMC) geometry with increased thermal anchoring and a mechanical mode at 7.4 GHz, well aligned with the operation range of cryogenic microwave hardware and piezoelectric transducers. The eight times better thermalization than current one-dimensional OMCs, large optomechanical coupling rates, g(0)/2 pi approximate to 880 kHz, and high optical quality factors, Q(opt) = 2.4 x 10(5), allow ground-state cooling (n(m) = 0.32) of the acoustic mode from 3 K and entering the optomechanical strong-coupling regime. In pulsed sideband asymmetry measurements, we show ground-state operation (n(m) < 0.45) at temperatures below 10 mK, with repetition rates up to 3 MHz, generating photon-phonon pairs at approximate to 147 kHz. Our results extend optomechanical system capabilities and establish a robust foundation for future microwave-to-optical transducers with entanglement rates exceeding state-of-the-art superconducting qubit decoherence rates. (AU) | |
| FAPESP's process: | 23/00058-0 - Enabling waveguide-cavity scattering for microwave-to-optical transduction |
| Grantee: | André Garcia Primo |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate (Direct) |
| FAPESP's process: | 19/09738-9 - Near strong coupling optomechanical cavities |
| Grantee: | André Garcia Primo |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 18/25339-4 - Integrated photonics devices |
| Grantee: | Newton Cesario Frateschi |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 18/15577-5 - Nonlinear nanophotonics circuits: building blocks for optical frequency synthesis, filtering and signal processing |
| Grantee: | Gustavo Silva Wiederhecker |
| Support Opportunities: | Research Grants - Young Investigators Grants - Phase 2 |