Extended Data Fig. 1: Soft-clamped membrane.
From: Measurement-based quantum control of mechanical motion
a, Photograph of the soft-clamped membrane. b, Simulated displacement pattern of defect-localized mode A. c, Mechanical spectrum of the lowest-frequency bandgap, with defect-localized modes labelled from A to E. The grey peak at 1.09 MHz is a phase-calibration tone.
