Bosons in fluctuating gauge fields: Bose metal and phase separation

被引：4

作者：

Jack, RL ^{[1
]}

Lee, DKK ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW, England

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.66.104526

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study a two-dimensional system of bosons interacting with a fluctuating U(1) gauge field with overdamped dynamics. We find two instabilities of the condensed phase at T=0: one to phase separation and another to a homogeneous nonsuperfluid (Bose metal). The presence of both instabilities in the model is dependent on the low-energy form of the gauge field propagator. We discuss the relevance of our findings to the U(1) gauge theory of the t-J model.

引用

页码：1045261 / 1045267

页数：7

共 9 条

[1] NEW APPROACH TO THE MIXED-VALENCE PROBLEM [J].

COLEMAN, P .

PHYSICAL REVIEW B, 1984, 29 (06) :3035-3044

[2] Interaction-induced Bose metal in two dimensions [J].

Dalidovich, D ;

Phillips, P .

PHYSICAL REVIEW B, 2001, 64 (05) :0525071-0525074

[3]

DALIDOVICH D, 2002, PHYS REV B, V66

[4] Existence of a Bose metal at T=0 [J].

Das, D ;

Doniach, S .

PHYSICAL REVIEW B, 1999, 60 (02) :1261-1275

[5] 2-DIMENSIONAL BOSE-LIQUID WITH STRONG GAUGE-FIELD INTERACTION [J].

FEIGELMAN, MV ;

GESHKENBEIN, VB ;

IOFFE, LB ;

LARKIN, AI .

PHYSICAL REVIEW B, 1993, 48 (22) :16641-16661

[6] GAPLESS FERMIONS AND GAUGE-FIELDS IN DIELECTRICS [J].

IOFFE, LB ;

LARKIN, AI .

PHYSICAL REVIEW B, 1989, 39 (13) :8988-8999

[7] Bosons, gauge fields, and high-T-c cuprates [J].

Kim, DH ;

Lee, DKK ;

Lee, PA .

PHYSICAL REVIEW B, 1997, 55 (01) :591-605

[8] GAUGE-THEORY OF THE NORMAL STATE OF HIGH-TC SUPERCONDUCTORS [J].

LEE, PA ;

NAGAOSA, N .

PHYSICAL REVIEW B, 1992, 46 (09) :5621-5639

[9] ON THE SOLUTION OF THE COQBLIN-SCHRIEFFER HAMILTONIAN BY THE LARGE-N EXPANSION TECHNIQUE [J].

READ, N ;

NEWNS, DM .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1983, 16 (17) :3273-3295

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