Controlling competing orders via non-equilibrium acoustic phonons: emergence of anisotropic electronic temperature

Abstract

Ultrafast perturbations offer a unique tool to manipulate correlated systems due to their ability to promote transient behaviors with no equilibrium counterpart. A widely employed strategy is the excitation of coherent optical phonons, as they can cause significant changes in the electronic structure and interactions on short time scales. Here, we explore a promising alternative route: the non-equilibrium excitation of acoustic phonons. We demonstrate that it leads to the remarkable phenomenon of a momentum-dependent temperature, by which electronic states at different regions of the Fermi surface are subject to distinct local temperatures. Such an anisotropic electronic temperature can have a profound effect on the delicate balance between competing ordered states in unconventional superconductors, opening a novel avenue to control correlated phases.

9 pages, 3 figures + supplementary

References in corpus (11)

• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
• Reversible Tuning of the Heavy Fermion Ground State in CeCoIn${}_5$
• Nonequilibrium steady states and transient dynamics of conventional superconductors under phonon driving
• Superconductivity and spin-density-waves in multi-band metals
• The theory of parametrically amplified electron-phonon superconductivity
• Low-energy microscopic models for iron-based superconductors: a review
• Electron relaxation in metals: Theory and exact analytical solutions
• Nonequilibrium enhancement of high-temperature superconductivity in a 3D model of cuprates
• Quantum critical point shifts under superconductivity: the pnictides and the cuprates
• Keldysh Ginzburg-Landau action of fluctuating superconductors

Cited by in corpus (12)

• Tracking the Ultrafast Non-Equilibrium Energy Flow between Electronic and Lattice Degrees of Freedom in Crystalline Nickel
• Theory of out-of-equilibrium electron and phonon dynamics in metals after ultrafast laser excitation
• Resistivity near a nematic quantum critical point: Impact of acoustic phonons
• Periodic dynamics in superconductors induced by an impulsive optical quench
• DC resistivity near a nematic quantum critical point: Effects of weak disorder and acoustic phonons
• Control of Competing Superconductivity and Charge Order by Non-equilibrium Currents
• Post-quench gap dynamics of two-band superconductors
• Cavity engineering of Hubbard $U$ via phonon polaritons
• Microscopic Theory of Ultrafast Out-of-Equilibrium Dynamics in Magnetic Insulators. Unraveling the Magnon-Phonon Coupling
• Laser-induced coherent control of an electronic nematic quantum phase transition
• Ab-initio Simulations of Coherent Phonon-Induced Pumping of Carriers in Zirconium Pentatelluride
• A quantum heat engine based on dynamical materials design