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Titolo:
(1+1)-dimensional massive sine-Gordon field theory and the Gaussian wave-functional approach - art. no. 105021
Autore:
Lu, WF;
Indirizzi:
Shanghai Jiao Tong Univ, Dept Appl Phys, Shanghai 200030, Peoples R China Shanghai Jiao Tong Univ Shanghai Peoples R China 200030 Peoples R China CCAST, World Lab, Beijing 100080, Peoples R China CCAST Beijing Peoples R China 100080 ab, Beijing 100080, Peoples R China
Titolo Testata:
PHYSICAL REVIEW D
fascicolo: 10, volume: 5910, anno: 1999,
pagine: 5021 -
SICI:
0556-2821(19990515)5910:10<5021:(MSFTA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
+ 1 DIMENSIONS; SCHWINGER MODEL; PERTURBATION-THEORY; BOUND-STATES; QUARK CONFINEMENT; THIRRING MODEL; EXCITED-STATES; FIXED-POINT; HIGGS-MODEL; LIGHT-CONE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
74
Recensione:
Indirizzi per estratti:
Indirizzo: Lu, WF Shanghai Jiao Tong Univ, Dept Appl Phys, Shanghai 200030, Peoples RChina Shanghai Jiao Tong Univ Shanghai Peoples R China 200030 s R China
Citazione:
W.F. Lu, "(1+1)-dimensional massive sine-Gordon field theory and the Gaussian wave-functional approach - art. no. 105021", PHYS REV D, 5910(10), 1999, pp. 5021

Abstract

The ground, one- and two-particle states of (1 + 1)-dimensional massive sine-Gordon field theory are investigated within the framework of the Gaussian wave-functional approach. We demonstrate that for a certain region of model parameter space, the vacuum of the field system is asymmetrical. Furthermore, it is shown that a two-particle bound state can exist upon the asymmetric vacuum for a part of the aforementioned region. In addition, for the bosonic equivalent to the massive Schwinger model, the masses of the one-boson and two-boson bound states agree with the recent second-order results ofa fermion-mass perturbation calculation when the fermion mass is small. [S0556-2821(99)02010-X].

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Documento generato il 29/03/20 alle ore 23:11:54