Variational path-integral treatment of a translation invariant many-polaron system

被引：13

作者：

Brosens, F ^{[1
]}

Klimin, SN ^{[1
]}

Devreese, JT ^{[1
]}

机构：

[1] Univ Antwerp, TFVS, B-2610 Antwerp, Belgium

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.71.214301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A translation invariant N-polaron system is investigated at arbitrary electron-phonon coupling strength, using a variational principle for path integrals for identical particles. An upper bound for the ground-state energy is found as a function of the number of spin up and spin down polarons, taking the electron-electron interaction and the Fermi statistics into account. The resulting addition energies and the criteria for multipolaron formation are discussed.

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页数：13

相关论文

共 32 条

[1]

Alexandrov A.S., 1996, POLARONS BIPOLARONS

[2] Correlations in a confined gas of harmonically interacting spin-polarized fermions [J].

Brosens, F ;

Devreese, JT ;

Lemmens, LF .

PHYSICAL REVIEW E, 1998, 58 (02) :1634-1643

[3] Thermodynamics of coupled identical oscillators within the path-integral formalism [J].

Brosens, F ;

Devreese, JT ;

Lemmens, LF .

PHYSICAL REVIEW E, 1997, 55 (01) :227-236

[4] Density and pair correlation function of confined identical particles: The Bose-Einstein case [J].

Brosens, F ;

Devreese, JT ;

Lemmens, LF .

PHYSICAL REVIEW E, 1997, 55 (06) :6795-6802

[5] Polaronic optical absorption in electron-doped and hole-doped cuprates [J].

Calvani, P ;

Capizzi, M ;

Lupi, S ;

Maselli, P ;

Paolone, A ;

Roy, P .

PHYSICAL REVIEW B, 1996, 53 (05) :2756-2766

[6] Optical properties of an interacting large polaron gas [J].

Cataudella, V ;

De Filippis, G ;

Iadonisi, G .

EUROPEAN PHYSICAL JOURNAL B, 1999, 12 (01) :17-22

[7]

Devreese J. T., 1996, ENCY APPL PHYS, V14, P383, DOI DOI 10.1002/3527600434.EAP347

[8] Large-polaron effects in the infrared spectrum of high-Tc cuprate superconductors [J].

Devreese, JT ;

Tempere, J .

SOLID STATE COMMUNICATIONS, 1998, 106 (05) :309-313

[9] Optical absorption of a many-polaron system confined in a quantum dot [J].

Devreese, JT ;

Klimin, SN ;

Fomin, VM ;

Brosens, F .

SOLID STATE COMMUNICATIONS, 2000, 114 (06) :305-310

[10]

DEVREESE JT, 2001, FLUCTUATING PATHS FI, P289

← 1 2 3 4 →