@article{ISI:000266187400006,
 abstract = {In this work, we theoretically examine recent pump/probe photoemission
experiments on the strongly correlated chargedensity-wave insulator
TaS2. We describe the general nonequilibrium many-body formulation of
time-resolved photoemission in the sudden approximation, and then solve
the problem using dynamical mean-field theory with the numerical
renormalization group and a bare density of states calculated from
density functional theory including the charge-density-wave distortion
of the ion cores and spin-orbit coupling. We find a number of
interesting results: (i) the bare band structure actually has more
dispersion in the perpendicular direction than in the two-dimensional
planes; (ii) the DMFT approach can produce upper and lower Hubbard bands
that resemble those in the experiment, but the upper bands will overlap
in energy with other higher energy bands; (iii) the effect of the finite
width of the probe pulse is minimal on the shape of the photoemission
spectra; and (iv) the quasiequilibrium approximation does not fully
describe the behavior in this system. (C) 2009 WILEY-VCH Verlag GmbH &
Co. KGaA, Weinheim},
 author = {Freericks, J. K. and Krishnamurthy, H. R. and Ge, Yizhi and Liu, A. Y.
and Pruschke, Th.},
 doi = {10.1002/pssb.200881555},
 eissn = {1521-3951},
 issn = {0370-1972},
 journal = {PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS},
 month = {MAY},
 note = {32nd International Conference on Theoretical Physics, Ustron, POLAND,
SEP 05-10, 2008},
 number = {5},
 orcid-numbers = {Liu, Amy Y/0000-0002-2011-1854
Freericks, James K/0000-0002-6232-9165},
 pages = {948-954},
 researcherid-numbers = {Liu, Amy Y/E-2266-2015
Pruschke, Thomas/H-5065-2011
Pruschke, Thomas/H-5046-2011
Freericks, James K/D-7502-2011},
 times-cited = {23},
 title = {Theoretical description of time-resolved pump/probe photoemission in
TaS2: a single-band DFT plus DMFT(NRG) study within the quasiequilibrium
approximation},
 unique-id = {ISI:000266187400006},
 volume = {246},
 year = {2009}
}