Search Results - "CASTILLA, G. E"

Instability of the fixed point of the O(N) nonlinear σ model in 2 + ε dimensions by CASTILLA, G. E, SUDIP CHAKRAVARTY

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Higher-dimensional bosonization with nonlinear energy dispersion by Kopietz, P, Castilla, GE

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Is the phase transition in the Heisenberg model described by the (2 + ϵ) expansion of the non-linear σ-model? by Castilla, Guillermo E., Chakravarty, Sudip

“…The non-linear σ-model is a ubiquitous model. In this paper, the O( N) model where the N-component spin is a unit vector, S 2 = 1, is considered. The stability…”
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Quasiparticle Behavior of Composite Fermions in the Half-Filled Landau Level by Kopietz, Peter, Castilla, Guillermo E.

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Is the phase transition in the Heisenberg model described by the $(2+\epsilon)$-expansion of the nonlinear $\sigma$-model? by Castilla, G. E, Chakravarty, S

“…Nucl.Phys. B485 (1997) 613-645 Nonlinear $\sigma$-model is an ubiquitous model. In this paper, the $O(N)$ model where the $N$-component spin is a unit vector,…”
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Instability of the fixed point of the O(N) nonlinear sigma -model in (2+ epsilon ) dimensions by Castilla, GE, Chakravarty, S

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Spin-wave expansion of the staggered magnetization of a square-lattice Heisenberg antiferromagnet at T=O by CASTILLA, G. E, CHAKRAVARTY, S

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Evidence for a common physical description of non-Fermi-liquid behavior in f-electron systems by de Andrade, M. C, Chau, R, Dickey, R. P, Dilley, N. R, Freeman, E. J, Gajewski, D. A, Maple, M. B, Movshovich, R, Neto, A. H. Castro, Castilla, G. E, Jones, B. A

“…The non-Fermi-liquid (NFL) behavior observed in the low temperature specific heat $C(T)$ and magnetic susceptibility $\chi(T)$ of f-electron systems is…”
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Spin-wave expansion of the staggered magnetization of a square-lattice Heisenberg antiferromagnet at T=0 by Castilla, GE, Chakravarty, S

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