Can magnets be useful for quantum applications? While magnetism has long been investigated for classical applications such as low-power logic devices, long-range transport, magnetic field sensing, and more, its potential for quantum applications garnered attention only recently. My goal with these theoretical developments is to propose feasible experiments that can advance demonstrations of genuine non-classical effects in magnets.

Relevant Publications

[1] Quantum tomography of magnons using Brillouin light scattering, SS, Silvia Viola Kusminskiy, Victor ASV Bittencourt, arXiv (2023)

[2] Protocol for generating an arbitrary quantum state of the magnetization in cavity magnonics, SS, Victor ASV Bittencourt, Silvia Viola Kusminskiy, Journal of Physics: Materials (2022)

[3] Spin cat states in ferromagnetic insulators, SS, Victor ASV Bittencourt, Alexy D Karenowska, Silvia Viola Kusminskiy, Physical Review B: Letters (2021)

Microwave to optical transduction is one of the most sought after application in quantum communication. Magnets are promising intermediaries for such a transduction because they couple very strongly with the microwaves, yet achieving a comparable coupling with optics remains a challenge. These works involve studying and enhancing this optomagnonic coupling, particularly with the use of cavities. 

Relevant Publications

[1] A Finite-Difference Time-Domain approach for dispersive magnetic media, Jasmin Graf, Joshua Baxter, SS, Silvia Viola Kusminskiy, Lora Ramunno, arXiv (2023)

[2] Design of an optomagnonic crystal: Towards optimal magnon-photon mode matching at the microscale, Jasmin Graf, SS, Hans Huebl, Silvia Viola Kusminskiy, Physical Review Research (2021)

[3] Coherent pumping of high-momentum magnons by light, Fran Šimić, SS, Yaroslav M Blanter, Gerrit EW Bauer, Physical Review B: Rapid Communications (2020)

[4] Optimal mode matching in cavity optomagnonics, SS, Babak Zare Rameshti, Yaroslav M Blanter, Gerrit EW Bauer, Physical Review B (2019)

[5] Optical cooling of magnons, SS, Yaroslav M Blanter, Gerrit EW Bauer, Physical Review Letters (2018)

[6] Selection rules for cavity-enhanced Brillouin light scattering from magnetostatic modes, JA Haigh, NJ Lambert, SS, YM Blanter, GEW Bauer, AJ Ramsay, Physical Review B (2018)

[7] Light scattering by magnons in whispering gallery mode cavities, SS, Yaroslav M Blanter, Gerrit EW Bauer, Physical Review B (2017)