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- Indian Institute of Science BangaloreIN74 papers
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6 papers · 2 filters
Theoretical description of time-resolved pump/probe photoemission in TaS\_2: a single-band DFT+DMFT(NRG) study within the quasiequilibrium approximation
J. K. Freericks, H. R. Krishnamurthy, Yizhi Ge +2
In this work, we theoretically examine recent pump/probe photoemission experiments on the strongly correlated charge-density-wave insulator TaS\_2. We describe the general nonequil…
Quantum Critical Point at Finite Doping in the 2D Hubbard Model: A Dynamical Cluster Quantum Monte Carlo Study
N. S. Vidhyadhiraja, A. Macridin, C. Sen +2
We explore the Matsubara quasiparticle fraction and the pseudogap of the two-dimensional Hubbard model with the dynamical cluster quantum Monte Carlo method. The character of the q…
Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
J. K. Freericks, H. R. Krishnamurthy, Th. Pruschke
The theory for time-resolved photoemission spectroscopy as applied to pump-probe experiments is developed and solved for the generic case of a strongly correlated material. The for…
Interplay between strong correlations and magnetic field in the symmetric periodic Anderson model
Debabrata Parihari, N. S. Vidhyadhiraja, David E. Logan
Magnetic field effects in Kondo insulators are studied theoretically, using a local moment approach to the periodic Anderson model within the framework of dynamical mean-field theo…
Glassy behavior in the ferromagnetic and the non-magnetic insulating states of the rare earth manganates, Ln0.7Ba0.3MnO3 (Ln = Nd or Gd)
Asish K. Kundu, P. Nordblad, C. N. R. Rao
While La0.7Ba0.3MnO3 is a ferromagnetic metal (TC = 340 K) with longrange ordering, Nd0.7Ba0.3MnO3 shows a transition around 150 K with a small increase in magnetization, but remai…
External Electric Field Mediated Quantum Phase Transitions in One-Dimensional Charge Ordered Insulators: A DMRG Study
Sudipta Dutta, Swapan K. Pati
We perform density matrix renormalization group (DMRG) calculations extensively on one-dimensional chains with on site (U) as well as nearest neighbour (V) Coulomb repulsions. The…