Dynamics of topological defects after a photo-induced melting of a charge-density wave

Abstract

Charge-density-wave order in a solid can be temporarily "melted" by a strong laser pulse. Here we use the discrete Gross-Pitaevskii equation on a cubic lattice to simulate the recovery of the CDW long-range phase coherence following such a pulse. Our simulations indicate that the recovery process is dramatically slowed down by the three-dimensional topological defects - CDW dislocations - created as a result of strongly nonequilibrium heating and cooling of the system. Overall, the simulated CDW recovery was found to be remarkably reminiscent of a recent pump-probe experiment in LaTe${}_3$.

v2. Main text: 5 pages, 4 figures. Supplemental Material: 7 pages, 8 figures

References in corpus (6)

• Optical manipulation of electronic dimensionality in a quantum material
• Nonequilibrium Charge-Density-Wave Order Beyond the Thermal Limit
• Extracting Lyapunov exponents from the echo dynamics of Bose-Einstein condensates on a lattice
• Unconventional light-induced states visualized by ultrafast electron diffraction and microscopy
• Ordering Kinetics in the Random Bond XY Model
• Quench dynamics of the three-dimensional U(1) complex field theory: geometric and scaling characterisation of the vortex tangle

Cited by in corpus (3)

• Ultrafast formation of topological defects in a 2D charge density wave
• Fate of transient order parameter domain walls in ultrafast experiments
• Transient ordering in the Gross-Pitaevskii lattice subject to an energy quench within the disordered phase