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Topology of Light and Sound at the Nanoscale

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Topology of Light and Sound at the Nanoscale
Alternative Title
Engineering topological transport of phonons at the nanoscale
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15
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CC Attribution - NonCommercial - NoDerivatives 4.0 International:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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Release Date2017
LanguageEnglish

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Abstract
In this talk I will describe our recent ideas of how to engineer nanostructures that generate topological transport of vibrations. These include situations with explicit time-reversal symmetry breaking (via an optical field with optical vorticity) as well as with time-reversal symmetry intact. In the latter case, I will show how the snowflake phononic crystal, first invented for the purposes of optomechanics, provides an ideal platform in which to implement both pseudomagnetic fields for vibrations as well as a topological insulator. Pseudomagnetic fields for sound at the nanoscale Christian Brendel, Vittorio Peano, Oskar Painter, and Florian Marquardt, Proceedings of the National Academy of Sciences (PNAS) 114, E3390–E3395 (2017) Snowflake Topological Insulator for Sound Waves Christian Brendel, Vittorio Peano, Oskar Painter, and Florian Marquardt, arXiv:1701.06330 (2017) Topological Phases of Sound and Light Vittorio Peano, Christian Brendel, Michael Schmidt, and Florian Marquardt, Phys. Rev. X 5, 031011 (2015)