Universal linear and nonlinear electrodynamics of a Dirac fluid
Abstract
Electrons in pristine solids behave as a hydrodynamic fluid in a certain range of temperatures and frequencies. We show that the response of such a fluid to an electromagnetic field is different from what is predicted by the usual kinetic theory. Certain aspects of this response are universal, for example, a direct relation between the linear and second-order nonlinear optical conductivities. Discovery of this relation enriches our understanding of the light–matter interaction in diverse electron systems and new materials such as graphene.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 12, 2018
- Source ID
- 10.1073/pnas.1717010115
Entities
People
- Dmitry N. Basov
- Michael Fogler
- Zhiyuan Sun
Organizations
- Columbia University
- Gordon and Betty Moore Foundation
- National Science Foundation
- Office of Naval Research
- Semiconductor Research Corporation
- United States Department of Energy
- University of California, San Diego