A HYBRID MONTE CARLO STUDY OF THE SU-SCHRIEFFER-HEEGER MODEL

Marcia G. Do Amaral () and C. Aragão de Carvalho ()
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Marcia G. Do Amaral: Instituto de Física—Universidade Federal Fluminense Outeiro de São João Batista s/n, 24020 Centro, Niterói, Rio de Janeiro, Brasil
C. Aragão de Carvalho: Departamento de Física—Pontifícia Univ. Católica do Rio de Janeiro Rua Marques de São Vicente 225, C.P. 38071, Rio de Janeiro, Brasil

International Journal of Modern Physics C (IJMPC), 1994, vol. 05, issue 03, 459-481

Abstract: We study, using the Hybrid Monte Carlo Method, the behavior of the spinless SuSchrieffer-Heeger model that describes conducting polymers, as a function of the Yukawa coupling constant, the fermion mass and the chemical potential, which simulates doping. We measure the expectation value of the bosonic fields, φ, and of the fermionic fields,$\bar\psi\psi$, in the phase space of all parameters. We exhibit the phase diagram of the theory and look for the presence of solitons, polarons and bipolarons in the configurations generated.

Date: 1994
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DOI: 10.1142/S0129183194000659

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