Picano A, Grandi F, Eckstein M (2023)
Publication Type: Journal article
Publication year: 2023
Book Volume: 107
Article Number: 245112
Journal Issue: 24
DOI: 10.1103/PhysRevB.107.245112
Using ultrashort laser pulses, it has become possible to probe the dynamics of long-range order in solids on microscopic timescales. In the conventional description of symmetry-broken phases within time-dependent Ginzburg-Landau theory, the order parameter evolves coherently, with small fluctuations along an average trajectory. Recent experiments, however, indicate that some systems can support a different scenario, named ultrafast inhomogeneous disordering, where the average order parameter is no longer representative of the state on the atomic scale. Here we theoretically show that ultrafast disordering can occur in a minimal, yet paradigmatic, model for a Peierls instability if atomic scale inhomogeneities of both the electronic structure and the charge density wave order parameter are taken into account. The latter is achieved using a nonequilibrium generalization of statistical dynamical mean-field theory coupled to stochastic differential equations for the order parameter.
APA:
Picano, A., Grandi, F., & Eckstein, M. (2023). Inhomogeneous disordering at a photoinduced charge density wave transition. Physical Review B, 107(24). https://doi.org/10.1103/PhysRevB.107.245112
MLA:
Picano, Antonio, Francesco Grandi, and Martin Eckstein. "Inhomogeneous disordering at a photoinduced charge density wave transition." Physical Review B 107.24 (2023).
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