Measurement-based preparation of multimode mechanical states
File version
Version of Record (VoR)
Author(s)
Brawley, George A
Khademi, Soroush
Bridge, Elizabeth M
Bennett, James S
Bowen, Warwick P
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
Abstract
Nanomechanical resonators are a key tool for future quantum technologies, such as quantum force sensors and interfaces, and for studies of macroscopic quantum physics. The ability to prepare room temperature nonclassical states is a major outstanding challenge. It has been suggested that this could be achieved using a fast continuous measurement to break the usual symmetry between position and momentum. Here, we demonstrate this symmetry breaking and use it to prepare a thermally squeezed mechanical state. Our experiments take advantage of collective measurements on multiple mechanical modes, which we show can increase the measurement speed and improve state preparation. Theoretically, we show that this result extends to the quantum regime, relaxing the requirements to generate nonclassical states. We predict that multimode conditioning can enable room temperature quantum squeezing with existing technology. Our work paves the way toward room temperature quantum nanomechanical devices and toward their application in quantum technology and fundamental science.
Journal Title
Science Advances
Conference Title
Book Title
Edition
Volume
8
Issue
21
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
© 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
Item Access Status
Note
Access the data
Related item(s)
Subject
Quantum engineering systems (incl. computing and communications)
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
QUANTUM CONTROL
OSCILLATOR
Persistent link to this record
Citation
Meng, C; Brawley, GA; Khademi, S; Bridge, EM; Bennett, JS; Bowen, WP, Measurement-based preparation of multimode mechanical states, Science Advances, 2022, 8 (21)