Session H3: Invited Session: Electronic Properties of the Pseudogap Phase in Cuprates
8:00 AM–11:00 AM, Tuesday, February 28, 2012
Room: 205AB
Sponsoring Unit:
DCMP
Chair: Fu-Chun Zhang, University of Hong Kong
Abstract ID: BAPS.2012.MAR.H3.1
Abstract: H3.00001 : Extremely Correlated Fermi Liquids
8:00 AM–8:36 AM
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Author:
Sriram Shastry
(University of California Santa Cruz)
A new framework is reported for calculating the properties of extremely correlated electronic systems with eliminated double occupancy. Based on Schwinger's approach to field theory, it avoids using auxiliary variables, and leads to a low (particle) density expansion with equations that approximately double the complexity of the standard theory for interacting electrons. Concrete results for the one electron spectral function of the $t$-$J$ model in 2-dimensions are presented to lowest non trivial order in density. These already show considerable promise in the context of cuprate superconductors. A distinguishing characteristic of this theory is the low energy long wavelength asymmetry between adding holes and particles. Prospects for the experimental observation of this asymmetry are discussed. \\[4pt] [1] ``Extremely Correlated Fermi Liquids,'' B. S. Shastry, arXiv:1102.2858 (2011), Phys. Rev. Letts. 107, 056403 (2011).\\[0pt] [2] ``Dynamical Particle Hole Asymmetry in Cuprate Superconductors,'' B. S. Shastry, arXiv: 1110.1032 (2011)
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2012.MAR.H3.1