`2018-09-17 11:30:00``2018-09-17 12:30:00``Quantum Matter Seminar - Aashish Clerk (University of Chicago) Bosonic Analogues of Topological Superconductors``Interest continues to grow in photonic and phononic analogues of topological electronic phases. These systems are typically non-interacting, and have the same band structure and edge state structure as their fermionic counterparts. In this talk, I’ll discuss recent theory work in my group on a class of bosonic systems where this correspondence fails. They involve using parametric “two-photon” driving, and have Hamiltonians that superficially resemble those of topological superconductors. Among the surprising effects that emerge are the presence of topologically-protected instabilities that can be harnessed for non-reciprocal quantum amplification, and effective non-Hermitian dynamics in a bosonic analogue of the Kitaev-Majorana chain. I’ll discuss how these ideas could be realized in a variety of different experimental platforms, including superconducting quantum circuits and optomechanics.``1080 Physics Research Building - Smith Seminar Room``OSU ASC Drupal 8``ascwebservices@osu.edu``America/New_York``public`

`2018-09-17 11:30:00``2018-09-17 12:30:00``Quantum Matter Seminar - Aashish Clerk (University of Chicago) Bosonic Analogues of Topological Superconductors`Interest continues to grow in photonic and phononic analogues of topological electronic phases. These systems are typically non-interacting, and have the same band structure and edge state structure as their fermionic counterparts. In this talk, I’ll discuss recent theory work in my group on a class of bosonic systems where this correspondence fails. They involve using parametric “two-photon” driving, and have Hamiltonians that superficially resemble those of topological superconductors. Among the surprising effects that emerge are the presence of topologically-protected instabilities that can be harnessed for non-reciprocal quantum amplification, and effective non-Hermitian dynamics in a bosonic analogue of the Kitaev-Majorana chain. I’ll discuss how these ideas could be realized in a variety of different experimental platforms, including superconducting quantum circuits and optomechanics.

`1080 Physics Research Building - Smith Seminar Room``Department of Physics``physics@osu.edu``America/New_York``public`Interest continues to grow in photonic and phononic analogues of topological electronic phases. These systems are typically non-interacting, and have the same band structure and edge state structure as their fermionic counterparts. In this talk, I’ll discuss recent theory work in my group on a class of bosonic systems where this correspondence fails. They involve using parametric “two-photon” driving, and have Hamiltonians that superficially resemble those of topological superconductors. Among the surprising effects that emerge are the presence of topologically-protected instabilities that can be harnessed for non-reciprocal quantum amplification, and effective non-Hermitian dynamics in a bosonic analogue of the Kitaev-Majorana chain. I’ll discuss how these ideas could be realized in a variety of different experimental platforms, including superconducting quantum circuits and optomechanics.