Non-Equilibrium Quantum Phase Discovery via Non-thermal Ultrafast Quench near Quantum Critical Points
Abstract
The goals of the proposed research are to (i) construct the non-equilibrium phase diagram of strongly correlated systems immediately after a quantum quench, (ii) reveal pre-empted quantum crtiical regimes and metastable phases, (iii) probe the dynamics in coupled order parameters, (iv) engineer non-adiabatic quantum states and (v) develop a theoretical framework to model these non-equilibrium phases. Ultrafast THz radiation pumping of iron pnictide superconductors will be used to disrupt the ground state of the system and eliminate the superconducting order which typically pre-empts the quantum critical behavior of these systems. A form of photo-doping will be used to modify the carrier density, moving a sample from under-doped to optimal to over-doped regimes wherein the non-equilibrium dynamics and possible phases will be explored in detail.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510135
Entities
People
- Jigang Wang
Organizations
- Army Contracting Command
- Iowa State University
- United States Army