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Kirill Shtengel
Assistant Professor of Physics
Ph.D. 1999, University of California, Los Angeles
Theoretical Condensed Matter Physics
E-mail: kirill.shtengel@ucr.edu
Phone: (951) 827-1058
Fax: (951) 827-4529
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My research interests lie in the field of theoretical condensed matter physics
where I am focusing on strongly correlated systems and their potential
application for quantum computation. I am particularly interested in the
physics of frustration, both classical and quantum. Effects of frustration
tend to suppress conventional ordered phases. This, in turn, may give way to
the appearance of new, unconventional phases at low enough temperatures. One
fascinating possibility is so-called fractionalized phases. As the name
suggests, the excitations in such systems carry fractions of "normal"
particles' charge and spin and have other unusual properties, such as
fractional exchange statistics which makes them very attractive candidates
for some interesting schemes of fault-tolerant quantum computation. My
interests also involve statistical mechanics of frustrated systems.
Selected Publications
F. Pollmann, J. J. Betouras, K. Shtengel, P. Fulde, "Correlated Fermions on a Checkerboard Lattice", to appear in Phys. Rev. Lett., preprint: cond-mat/0607202.
P. Bonderson, K. Shtengel and J. K. Slingerland, "Probing Non-Abelian Statistics with Quasiparticle Interferometry", Phys. Rev. Lett. 97, 016401 (2006), preprint: cond-mat/0601242.
P. Bonderson, A. Kitaev and K. Shtengel, "Detecting Non-Abelian Statistics in the ν=5/2 Fractional Quantum Hall State", Phys. Rev. Lett. 96, 016803 (2006), preprint: cond-mat/0508616.
K. Shtengel, C. Nayak, W. Bishara and C. Chamon, "No sliding in time", J. Phys. A: Math. Gen. 38, L589 (2005), preprint: cond-mat/0506710.
M. Freedman, C. Nayak and K. Shtengel, "Line of Critical Points in 2+1 Dimensions: Quantum Critical Loop Gases and Non-Abelian Gauge Theory", Phys. Rev. Lett. 94, 147205 (2005), preprint: cond-mat/0408257.
K. Shtengel and L. Chayes, "Vertex Models and Random Labyrinths: Phase Diagrams for Ice-type Vertex Models", J. Stat. Mech. (2005) P07006, preprint: cond-mat/0402615.
M. Freedman, C. Nayak and K. Shtengel, "Extended Hubbard model with ring exchange: a route to a non-Abelian topological phase", Phys. Rev. Lett. 94, 066401 (2005), preprint: cond-mat/0312273.
M. Freedman, C. Nayak, K. Shtengel, K. Walker, and Z. Wang, "A Class of P, T-Invariant Topological Phases of Interacting Electrons", Ann. Phys. 310, 428 (2004), preprint: cond-mat/0307511.
Chetan Nayak and Kirill Shtengel, "Microscopic models of two-dimensional magnets with fractionalized excitations", Phys. Rev. B 64, 064422 (2001), preprint: cond-mat/0010242.
L. Chayes, L. P. Pryadko, and K. Shtengel, "Intersecting Loop Models on d Z : Rigorous Results", Nucl. Phys. B 570, 590 (2000); preprint: cond-mat/9910292.
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