2016/06/30 by Patricio Arrangoiz-Arriola, Amir H. Safavi‐Naeini, Amir H. Safavi-Naeini · 1 citation
Engineering · Physics and Astronomy · #Advanced MEMS and NEMS Technologies #Condensed matter physics #Engineering physics #Materials science #Mechanical and Optical Resonators #Nanostructure #Nanotechnology #Physics #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Qubit #Superconducting quantum computing #Superconductivity #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physreva.94.063864
published as Phys. Rev. A 94, 063864 (2016) · 10 pages, 5 figures
arxiv created 2016/06/30 · openalex created_date 2016/07/22 · openalex publication_date 2016/12/30 · arxiv updated 2017/01/04 · openalex updated_date 2026/08/05
Nanomechanical systems can support highly coherent microwave-frequency excitations at cryogenic temperatures. However, generating sufficient coupling between these devices and superconducting quantum circuits is challenging due to the vastly different length scales of acoustic and electromagnetic excitations. Here we demonstrate a general method for calculating piezoelectric interactions between quantum circuits and arbitrary phononic nanostructures. We illustrate our technique by studying the coupling between a transmon qubit and bulk acoustic-wave, Lamb-wave, and phononic crystal resonators, and show that very large coupling rates are possible in all three cases. Our results suggest a route to phononic circuits and systems that are nonlinear at the single-phonon level.