{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["16(1)"],"submitter":["Mayor FM"],"pubmed_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<sub>0</sub>/2π  ≈  880 kHz, and high optical quality factors, Q<sub>opt</sub> = 2.4 × 10<sup>5</sup>, allow ground-state cooling (n<sub>m</sub> = 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<sub>m</sub> < 0.45) at temperatures below 10 mK, with repetition rates up to 3 MHz, generating photon-phonon pairs at  ≈ 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."],"journal":["Nature communications"],"pagination":["2576"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11910550"],"repository":["biostudies-literature"],"pubmed_title":["High photon-phonon pair generation rate in a two-dimensional optomechanical crystal."],"pmcid":["PMC11910550"],"pubmed_authors":["Safavi-Naeini AH","Malik S","Alegre TPM","Jiang W","Primo AG","Gyger S","Mayor FM"],"additional_accession":[]},"is_claimable":false,"name":"High photon-phonon pair generation rate in a two-dimensional optomechanical crystal.","description":"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<sub>0</sub>/2π  ≈  880 kHz, and high optical quality factors, Q<sub>opt</sub> = 2.4 × 10<sup>5</sup>, allow ground-state cooling (n<sub>m</sub> = 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<sub>m</sub> < 0.45) at temperatures below 10 mK, with repetition rates up to 3 MHz, generating photon-phonon pairs at  ≈ 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.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Mar","modification":"2025-04-26T05:43:33.724Z","creation":"2025-04-06T11:40:05.316Z"},"accession":"S-EPMC11910550","cross_references":{"pubmed":["40089541"],"doi":["10.1038/s41467-025-57948-7"]}}