Phonons and solitons in one-dimensional Mott insulators

被引：0

作者：

Chang, CM ^{[1
]}

Neto, AHC

Bishop, AR

机构：

[1] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[2] Boston Univ, Dept Phys, Boston, MA 02215 USA

[3] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[4] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.64.113406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the problem of one-dimensional Luttinger liquids in the insulating Mott-Hubbard phase in the presence of acoustic phonons in the semiclassical limit. We show that solitonic excitations can propagate freely in the system and the energy required to produce a soliton is reduced by a polaronic effect. We find a critical value of the electron-phonon coupling constant for which this energy vanishes.

引用

页数：3

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