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steven r.
white
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Title: Professor
Research Interests:
Theoretical Condensed Matter
e-mail: srwhite@uci.edu
Office: 310L Rowland Hall
Phone: (949) 824-2256, 6911
Fax:
(949) 824-2174
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:: Honors
and Awards
:: Preprints
Submitted to the LANL Server as S.R. White
:: Preprints
Submitted to the LANL
Server as Steven White
overview
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Professor White earned his B.A.
degree with majors in Physics, Mathematics, and Economics at the
University of California, San Diego
in 1982. He received his Ph.D. in Physics from Cornell University in
1988. He then held a postdoctoral position at the University of
California, Santa Barbara for two years, and joined UCI in 1989.
research
summary
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Professor White's research is
concentrated on the study of strongly correlated
electron systems, such as the Hubbard model, which is used to
describe high-temperature superconductors. He specialty is numerical
approaches for solving the quantum mechanics of strongly interacting
many particle systems. The main numerical
technique used by Professor White,
the density matrix renormalization group (DMRG), was invented
by White in 1992. This methods has been very successful and has now
been adopted by dozens
of groups worldwide, and was recently the subject of an international
conference.
One
of the most fascinating results of this works concerns
the presence of stripes in high temperature superconductors.
Recent experimental evidence has shown that the electrons
in high temperature superconductors are segregated into
stripe-like patterns. This has been a major puzzle and surprise
for most theorists--it is very difficult to write down and
then solve a model for these systems which gives stripes.
Professor White's DMRG simulations show stripes in excellent
agreement with experiments. The figure below shows results
from one of these simulations.
representative
publications
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::
Spectral Weight Function for the two-dimensional Hubbard Model, Phys.
Rev. B44, 4670 (1991).
:: Formation of Gaps in
the
two-dimensional Hubbard Model. Halffilled case,
Phys. Rev. B46, 5678 (1992).
:: Pair-Binding in Small
Hubbard
Molecules, (with S. Chakravarty, M. Gelfand, and S. Kivelson),
Phys. Rev. B45, 5062 (1992).
:: Real Space Quantum
Renormalization Groups, (with R. M. Noack), Phys. Rev. Lett. 68, 3487
(1992).
:: Pseudogap Formation in
the
Half-filled Hubbard Model, M. Vekic and S.R. White, Phys. Rev. B47,
1160 (1993).
:: Superfluid density and
the Drude
weight of the Hubbard model, D.J Scalapino, S.R. White, and
S.C. Zhang, Phys. Rev. Lett. 68, 2830 (1992).
:: Density Matrix
Formulation for
Quantum Renormalization Groups, Phys. Rev. Lett. 69, 2863 (1992).
:: Insulator, Metal, or
Superconductor: The Criteria, D.J. Scalapino, S.R. White, and S.C.
Zhang,
Phys. Rev. B47, 7995 (1993).
:: Numerical
Renormalization Group
Study of Low-Lying Eigenstates of the Antiferromagnetic S=1
Heisenberg Chain, (with D. A. Huse) to appear in Phys.
Rev. B.
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For
updates/corrections, please contact Alison Lara |
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updated 7.22.2008 |
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