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Correlation functions at generic superfluid-insulator transition in two dimensions

Title
Correlation functions at generic superfluid-insulator transition in two dimensions
Author
차민철
Issue Date
2006-11
Publisher
한국물리학회
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v. 49, No. 5, Page. 1986-1990
Abstract
We have investigated the correlation functions of interacting bosons at the generic superfluid-insulator transition, a prototypical quantum phase transition, in two dimensions in the spherical limit. The spatial correlation functions show non-power-law behavior consisting of two parts: a short-range correlation due to particle-hole pair excitations and a long-range off-diagonal order due to single-particle condensation. The temporal correlation functions, on the other hand, show a power-law behavior.
URI
http://www.jkps.or.kr/journal/view.html?uid=8059&vmd=Fullhttp://repository.hanyang.ac.kr/handle/20.500.11754/108797
ISSN
0374-4884; 1976-8524
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > PHOTONICS AND NANOELECTRONICS(나노광전자학과) > Articles
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