National Changhua University of Education Institutional Repository : Item 987654321/14101

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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/14101

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/14101

Title:	Low-energy Effective Theory for One-dimensional Lattice Bosons Near Integer Filling
Authors:	Lee, Yu-Wen;Lee, Yu-Li;Yang, Min-Fong
Contributors:	物理學系
Date:	2007
Issue Date:	2012-09-10T06:08:05Z
Publisher:	The American Physical Society
Abstract:	A low-energy effective theory for interacting bosons on a one-dimensional lattice at and near integer fillings is proposed. It is found that two sets of bosonic phase fields are necessary in order to explain the complete phase diagram. Using the present effective theory, the nature of the quantum phase transitions among various phases can be identified. Moreover, the general condition for the appearance of the recently proposed Pfaffian-like state can be realized from our effective action.
Relation:	Phys. Rev. B, 76(7): 075117
Appears in Collections:	[Department of Physics] Periodical Articles

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