COLLECTIVE EXCITATIONS ARE Q-DEFORMED BOSONS

被引：6

作者：

BIRMAN, JL

机构：

[1] Department of Physics City College of the City University of New York Convent Avenue and 138th Street New York

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 84卷 / 1-2期

关键词：

D O I：

10.1016/0038-1098(92)90336-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Collective excitations such as excitons and spin waves, in many-body condensed matter systems have long been described as "almost bosons". I make the Ansatz that collective excitations are exactly described by quantum-deformed canonical commutation rules (QDCCR): previous results are then lowest approximations to these rules. The q-deformed spectrum produces altered conditions for "q-Bose condensation".

引用

页码：259 / 262

页数：4

共 18 条

[1] AGRANOVICH VM, 1968, ZH EKSP TEOR FIZ, V26, P104
[2] AGRANOVICH VM, 1968, THEORY EXCITONS, P52
[3] AGRANOVICH VM, 1967, ZH EKSP TEOR FIZ, V53, P149
[4] ARTONI M, NPUB ANHARMONIC NONC
[5] QUANTUM ALGEBRA AS THE DYNAMIC SYMMETRY OF THE DEFORMED JAYNES-CUMMINGS MODEL
CHAICHIAN, M
ELLINAS, D
KULISH, P
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (08) : 980 - 983
[6] DAVYDOV AS, 1965, QUANTUM MECHANICS, P116
[7] DAVYDOV AS, 1973, THEORY SOLID STATE, V1
[8] DEVEGA H, 1989, ADV STUD PURE MATH, V19, P489
[9] FADDEV LD, 1990, 1988 P LAND C TEL AV, P113
[10] FETTER AL, 1971, QUANTUM THEORY MANY, P38

← 1 2 →