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Pseudomagnetic fields for sound at the nanoscale

Brendel, Christian and Peano, Vittorio and Painter, Oskar and Marquardt, Florian (2017) Pseudomagnetic fields for sound at the nanoscale. Proceedings of the National Academy of Sciences of the United States of America, 114 (17). E3390-E3395. ISSN 0027-8424. PMCID PMC5410830. doi:10.1073/pnas.1615503114.

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There is a growing effort in creating chiral transport of sound waves. However, most approaches so far have been confined to the macroscopic scale. Here, we propose an approach suitable to the nanoscale that is based on pseudomagnetic fields. These pseudomagnetic fields for sound waves are the analogue of what electrons experience in strained graphene. In our proposal, they are created by simple geometrical modifications of an existing and experimentally proven phononic crystal design, the snowflake crystal. This platform is robust, scalable, and well-suited for a variety of excitation and readout mechanisms, among them optomechanical approaches.

Item Type:Article
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URLURL TypeDescription CentralArticle Information Paper
Peano, Vittorio0000-0003-1931-5080
Painter, Oskar0000-0002-1581-9209
Marquardt, Florian0000-0003-4566-1753
Additional Information:© 2017 National Academy of Sciences. Edited by Tom C. Lubensky, University of Pennsylvania, Philadelphia, PA, and approved March 10, 2017 (received for review September 27, 2016) This work was supported by European Research Council Starting Grant OPTOMECH (to V.P., C.B., and F.M.) and by the European Marie-Curie Innovative Training Network cQOM (F.M.). This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant 732894 (Hybrid Optomechanical Technologies) (to V.P. and F.M.). This work was also supported by the Air Force Office of Scientific Research–Multidisciplinary University Research Initiative (MURI) Quantum Photonic Matter, Army Research Office–MURI Quantum Opto-Mechanics with Atoms and Nanostructured Diamond Grant N00014-15- 1-2761, the Institute for Quantum Information and Matter, and NSF Physics Frontiers Center Grant PHY-1125565 with support of Gordon and Betty Moore Foundation Grant GBMF-2644 (all to O.J.P.). Author contributions: V.P., O.J.P., and F.M. designed research; C.B., V.P., and F.M. performed research; C.B., V.P., and F.M. analyzed data; and C.B., V.P., O.J.P., and F.M. wrote the paper. The authors declare no conflict of interest. This article is a PNAS Direct Submission. This article contains supporting information online at
Group:Institute for Quantum Information and Matter
Funding AgencyGrant Number
European Research Council (ERC)OPTOMECH
Marie Curie FellowshipUNSPECIFIED
European Research Council (ERC)732894
Air Force Office of Scientific Research (AFOSRUNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
Office of Naval Research (ONR)N00014-15-1-2761
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationGBMF-2644
Subject Keywords:nanomechanics; pseudomagnetic field; topological physics; optomechanics; phononic crystal
Issue or Number:17
PubMed Central ID:PMC5410830
Record Number:CaltechAUTHORS:20160824-094540945
Persistent URL:
Official Citation:Christian Brendel, Vittorio Peano, Oskar J. Painter, and Florian Marquardt Pseudomagnetic fields for sound at the nanoscale PNAS 2017 114 (17) E3390-E3395; published ahead of print April 11, 2017, doi:10.1073/pnas.1615503114
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69893
Deposited By: Joy Painter
Deposited On:24 Aug 2016 22:03
Last Modified:28 Mar 2022 22:20

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