Expansions for one quasiparticle states in spin 1/2 systems

Nilanjana Datta, Thomas G Kennedy

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Convergent expansions of the wavefunctions for the ground state and low-lying excited states of quantum transverse Ising systems are obtained. These expansions are employed to prove that the dispersion relation for a single quasi-particle has a convergent expansion.

Original languageEnglish (US)
Pages (from-to)373-399
Number of pages27
JournalJournal of Statistical Physics
Volume108
Issue number3-4
DOIs
StatePublished - 2002

Fingerprint

Quasiparticles
expansion
Excited States
elementary excitations
Dispersion Relation
Ising
Ground State
Transverse
ground state
excitation

Keywords

  • Expansions
  • Quantum spins
  • Quasiparticles
  • Transverse Ising model

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Statistical and Nonlinear Physics
  • Mathematical Physics

Cite this

Expansions for one quasiparticle states in spin 1/2 systems. / Datta, Nilanjana; Kennedy, Thomas G.

In: Journal of Statistical Physics, Vol. 108, No. 3-4, 2002, p. 373-399.

Research output: Contribution to journalArticle

@article{ba40b0a636414a11b0553d892006d065,
title = "Expansions for one quasiparticle states in spin 1/2 systems",
abstract = "Convergent expansions of the wavefunctions for the ground state and low-lying excited states of quantum transverse Ising systems are obtained. These expansions are employed to prove that the dispersion relation for a single quasi-particle has a convergent expansion.",
keywords = "Expansions, Quantum spins, Quasiparticles, Transverse Ising model",
author = "Nilanjana Datta and Kennedy, {Thomas G}",
year = "2002",
doi = "10.1023/A:1015713005441",
language = "English (US)",
volume = "108",
pages = "373--399",
journal = "Journal of Statistical Physics",
issn = "0022-4715",
publisher = "Springer New York",
number = "3-4",

}

TY - JOUR

T1 - Expansions for one quasiparticle states in spin 1/2 systems

AU - Datta, Nilanjana

AU - Kennedy, Thomas G

PY - 2002

Y1 - 2002

N2 - Convergent expansions of the wavefunctions for the ground state and low-lying excited states of quantum transverse Ising systems are obtained. These expansions are employed to prove that the dispersion relation for a single quasi-particle has a convergent expansion.

AB - Convergent expansions of the wavefunctions for the ground state and low-lying excited states of quantum transverse Ising systems are obtained. These expansions are employed to prove that the dispersion relation for a single quasi-particle has a convergent expansion.

KW - Expansions

KW - Quantum spins

KW - Quasiparticles

KW - Transverse Ising model

UR - http://www.scopus.com/inward/record.url?scp=0036092681&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036092681&partnerID=8YFLogxK

U2 - 10.1023/A:1015713005441

DO - 10.1023/A:1015713005441

M3 - Article

VL - 108

SP - 373

EP - 399

JO - Journal of Statistical Physics

JF - Journal of Statistical Physics

SN - 0022-4715

IS - 3-4

ER -