This paper by Handel, Hora, Truong, Fraundorf, Tournier, and George examines quantum 1/f noise and phase noise in ferroelectrics, piezoelectrics, MEMS resonators, sensors, and piezoresponse force microscopy, presented at the 2014 Joint IEEE ISAF-IWATMD-PFM Conference. The comprehensive work analyzes fundamental quantum noise across diverse piezoelectric and ferroelectric applications, providing unified theoretical framework for understanding noise in acoustic devices, electromechanical sensors, and nanoscale piezoelectric characterization, with implications for optimizing performance in timing, sensing, and materials characterization applications.