Universal Behavior of Low Energy Potential Scattering for General Dispersions
ORAL
Abstract
Scattering behavior in the low energy limit has been well studied for quadratic dispersion relations. However, in recent years, systems that exhibit higher order (>2) dispersions have
become experimentally realizable in synthetic quantum systems, including multilayer graphene and atomic arrays, and scattering for these dispersions is not as well understood. In a recent
work, we discovered classes of novel universal scattering behaviors for general dispersions, characterized by the divergent density of states, although these universality classes were only
determined for emitter scattering. In this research, we further study this universality by classifying the behavior for general potential scattering at low energies.
become experimentally realizable in synthetic quantum systems, including multilayer graphene and atomic arrays, and scattering for these dispersions is not as well understood. In a recent
work, we discovered classes of novel universal scattering behaviors for general dispersions, characterized by the divergent density of states, although these universality classes were only
determined for emitter scattering. In this research, we further study this universality by classifying the behavior for general potential scattering at low energies.
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Presenters
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Kevin Xu
Harvard University
Authors
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Kevin Xu
Harvard University
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Yidan Wang
Harvard University
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Susanne F Yelin
Harvard University