Doublon formation by ions impacting a strongly correlated finite lattice system

Abstract

Strongly correlated systems of fermions have a number of exciting collective properties. Among them, the creation of a lattice that is occupied by doublons, i.e. two quantum particles with opposite spins, offers interesting electronic properties. In the past a variety of methods have been proposed to control doublon formation, both, spatially and temporally. Here, a novel mechanism is proposed and verified by exact diagonalization and nonequilibrium Green functions simulations---fermionic doublon creation by the impact of energetic ions. We report the formation of a nonequilibrium steady state with homogeneous doublon distribution. The effect should be observable in strongly correlated solids in contact with a high-pressure plasma and in fermionic atoms in optical lattices.

References in corpus (21)

• Energy Gaps in Graphene Nanoribbons
• Thermalization and its mechanism for generic isolated quantum systems
• Single-Spin Addressing in an Atomic Mott Insulator
• Structure, Stability, Edge States and Aromaticity of Graphene Ribbons
• Repulsively bound atom pairs in an optical lattice
• Interaction Quench in the Hubbard model
• Exact relaxation in a class of non-equilibrium quantum lattice systems
• Optical properties of graphene nanoribbons: the role of many-body effects
• Nonthermal steady states after an interaction quench in the Falicov-Kimball model
• {\em Ab initio} Quantum Monte Carlo simulation of the warm dense electron gas in the thermodynamic limit
• Quantum theory of ultracold atom-ion collisions
• Ultrafast doublon dynamics in photo-excited 1T-TaS${}_2$
• Probing nearest-neighbor correlations of ultracold fermions in an optical lattice
• Quantum distillation: dynamical generation of low-entropy states of strongly correlated fermions in an optical lattice
• Nonequilibrium dynamics in the one-dimensional Fermi-Hubbard model: A comparison of the nonequilibrium Green functions approach and the density matrix renormalization group method
• Sublattice dynamics and quantum state transfer of doublons in two-dimensional lattices
• Filling-dependent doublon dynamics in the one-dimensional Hubbard model
• Mott-insulator state of cold atoms in tilted optical lattices: doublon dynamics and multi-level Landau-Zener tunneling
• Forming doublons by a quantum quench
• Directed motion of doublons and holes in periodically driven Mott insulators
• Field-assisted doublon manipulation in the Hubbard model. A quantum doublon ratchet

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