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Avoid First Order Quantum Phase Transition by Changing Problem Hamiltonians
Quantum Phase Transition Changing Problem Hamiltonians
2010/10/29
The problem Hamiltonian of the adiabatic quantum algorithm for the maximum-weight independent set problem (MIS) that is based on the reduction to the Ising problem has flexible parameters. We show tha...
Multi-partite entanglement and quantum phase transition in the one-, two-, and three-dimensional transverse field Ising model
Multi-partite entanglement quantum phase transition transverse field Ising model
2010/10/19
In this paper we consider the quantum phase transition in the Ising model in the presence of
a transverse field in one, two and three dimensions from a multi-partite entanglement point of
view. Usin...
Ion-trap simulation of the quantum phase transition in an exactly solvable model of spins coupled to bosons
phase transition bosons Ion-trap simulation
2010/3/10
It is known that arrays of trapped ions can be used to efficiently simulate a variety of many-body quantum systems. Here, we show how it is possible to build a model representing a spin chain interact...
Decoherence due to an excited state quantum phase transition in a two-level boson model
Decoherence excited state quantum phase transition two-level boson model
2010/3/10
The decoherence induced on a single qubit by its interaction with the environment is studied. The environment is modelled as a scalar two-level boson system that can go through either first order or c...
Decoherence as a signature of an excited state quantum phase transition
Decoherence excited state quantum phase transition
2010/3/10
We analyze the decoherence induced on a single qubit by the interaction with a two-level boson system with critical internal dynamics. We explore how the decoherence process is affected by the presenc...
Quantum Phase Transition in a Pseudo-hermitian Dicke model
Quantum Phase Transition Pseudo-hermitian Dicke model
2010/4/8
We show that a Dicke-type pseudo-hermitian Hamiltonian undergoes quantum phase transition by mapping it to the "Dressed Dicke Model" through a similarity transformation. We find the positive-definite ...
Quantum Phase Transition in Two Species of Cold Bosonic Atoms
Bose-Einstein condensate phase transition
2007/8/15
2007Vol.47No.3pp.467-470DOI:
Quantum Phase Transition in Two Species of Cold Bosonic Atoms
YU Zhao-Xian,1,2,3 LIANG Jiu-Qing,1 JIAO Zhi-Yong,3 and WANG
Ji-Suo4
1 Institu...
Quantum Phase Transition in Quasi-two-dimensional
Heisenberg Antiferromagnet with Single-Ion Anisotropy
spatially anisotropic Heisenberg model single-ion anisotropy
functional integration Schwinger-Boson representation
2007/8/15
2007Vol.47No.1pp.171-180DOI:
Quantum Phase Transition in Quasi-two-dimensional
Heisenberg Antiferromagnet with Single-Ion Anisotropy
JI An-Chun and TIAN Guang-Shan
Schoo...
期刊信息
篇名
Quantum phase transition of condensed bosons in optical lattices
语种
英文
撰写或编译
作者
J.J. Liang,J.Q. Liang,W.M. Liu
第一作者单位
刊物名称
Phys. Rev
页面
A68, 043605 (2003).
出版日期
2003年
月
日
文章标识(ISSN)
相关项目
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