Year: 2023
Type: article
Abstract: We study the direct laser drive of infrared-active phonons that are quadratically coupled to a spinless fermion chain. Feedback is incorporated by phonon dressing of the electronic dispersion, which enables effective nonlinearities in the phonon dynamics. We uncover a first-order phase transition in the phononic steady state in which hysteretic effects allow either large or small phonon occupation depending on the drive protocol. We discuss the implications of these findings for probing phase transitions in real driven materials.
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G2229954460, G2432923657, ExpandQISE: Track 2: Neutral Atom Based Quantum Information Processing, G5757977352, Programs on Critical Problems in Physics, Astrophysics and Biophysics at the Aspen Center for Physics, Phase Transitions of Quantum Control, CAREER: Floquet Route to Non-Equilibrium Phases of Matter in Cavity QED, Kavli Institute for Theoretical Physics
OpenAlex ID: W4367061083