3 papers
cond-mat.str-el2012
Deconstructing the Hubbard Hamiltonian by Ultrafast Quantum Modulation Spectroscopy in Solid-state Mott Insulators
S. Kaiser, S. R. Clark, D. Nicoletti +8
Most available theories for correlated electron transport are based on the Hubbard Hamiltonian. In this effective theory, renormalized hopping and interaction parameters only impli…
cond-mat.str-el2010
Momentum-dependent snapshots of a melting charge density wave
Jesse C. Petersen, Stefan Kaiser, Nicky Dean +11
Charge density waves (CDWs) underpin the electronic properties of many complex materials. Near-equilibrium CDW order is linearly coupled to a periodic, atomic-structural distortion…
cond-mat.str-el2010
Polaronic conductivity in the photoinduced phase of 1T-TaS2
Nicky Dean, Jesse Petersen, Daniele Fausti +5
The transient optical conductivity of photoexcited 1T-TaS2 is determined over a three-order-of-magnitude frequency range. Prompt collapse and recovery of the Mott gap is observed.…