Magnetoresistivity within Quantum Acoustics
Oral-In-person
Abstract
Quantum acoustics is the coherent-state formulation of lattice vibrations, parallel to quantum optics, providing a non-perturbative, real-space description of electron–phonon interactions. Treating lattice vibrations as coherent states rather than phonon number states yields qualitatively fresh approximations beyond perturbation theory. This quantum acoustical framework has already provided key insights into displaced Drude peaks in the optical conductivity, Planckian resistivity and dynamical polaron formation in materials with strong electron-lattice interaction. Building on this, we further apply the quantum acoustics approach to magnetoresistivity, shedding light on the microscopic origin of linear-in-field transport behavior and quantum oscillations.
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Publication: -- D. Kim, A. Aydin, A. Daza, K. N. Avanaki, J. Keski-Rahkonen, and E. J Heller, Phys. Rev. B 106, 054311 (2022).
-- J. Keski-Rahkonen, X.-Y. Ouyang, S. Yuan, A.M. Graf, A. Aydin, and E.J. Heller, Phys. Rev. Lett. 132, 186303 (2024).
-- A. Aydin, J. Keski-Rahkonen, and E. J Heller, PNAS 121, e2404853121 (2024).
-- A. Aydin, J. Keski-Rahkonen, A.M. Graf, S. Yuan, X.-Y. Ouyang, Ö.E. Müstecaplıoğlu, and E.J. Heller, PNAS 122, e2426518122 (2025).
-- Y. Zhang, A.M. Graf, A. Aydin, J. Keski-Rahkonen, and E. J. Heller, arXiv.2411.18768. (2024)
Presenters
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Yubo Zhang
- Harvard University