Quantum Breathing of an Impurity in a One-Dimensional Bath of Interacting Bosons

被引：37

作者：

Peotta, Sebastiano ^{[1
]}

Rossini, Davide ^{[1
]}

Polini, Marco ^{[2
]}

Minardi, Francesco ^{[3
,4
,5
]}

Fazio, Rosario ^{[1
]}

机构：

[1] Scuola Normale Super Pisa, NEST, I-56126 Pisa, Italy

[2] Ist Nanosci CNR, NEST, I-56126 Pisa, Italy

[3] Univ Florence, LENS European Lab Nonlinear Spect, IT-50019 Sesto Fiorentino, Italy

[4] Univ Florence, Dipartimento Fis, IT-50019 Sesto Fiorentino, Italy

[5] CNR INO, IT-50019 Sesto Fiorentino, Italy

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 01期

关键词：

DYNAMICS; POLARONS; PARTICLE;

D O I：

10.1103/PhysRevLett.110.015302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By means of the time-dependent density-matrix renormalization-group (TDMRG) method we are able to follow the real-time dynamics of a single impurity embedded in a one-dimensional bath of interacting bosons. We focus on the impurity breathing mode, which is found to be well described by a single oscillation frequency and a damping rate. If the impurity is very weakly coupled to the bath, a Luttinger-liquid description is valid and the impurity suffers an Abraham-Lorentz radiation-reaction friction. For a large portion of the explored parameter space, the TDMRG results fall well beyond the Luttinger-liquid paradigm. DOI: 10.1103/PhysRevLett.110.015302

引用

页数：5

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