Non-equilibrium Optical Conductivity: General Theory and Application to Transient Phases

Autor:	Kennes, Dante M., Wilner, Eli Y., Reichman, David R., Millis, Andrew J.
Rok vydání:	2017
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Statistical Mechanics Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 96, 054506 (2017)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.96.054506
Popis:	A non-equilibrium theory of optical conductivity of dirty-limit superconductors and commensurate charge density wave is presented. We discuss the current response to different experimentally relevant light-field probe pulses and show that a single frequency definition of the optical conductivity $\sigma(\omega)\equiv j(\omega)/E(\omega)$ is difficult to interpret out of the adiabatic limit. We identify characteristic time domain signatures distinguishing between superconducting, normal metal and charge density wave states. We also suggest a route to directly address the instantaneous superfluid stiffness of a superconductor by shaping the probe light field. Comment: 14 pages, 19 figures, version as published
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1703.07248 Zobrazit plný text záznamu View this record from Arxiv