Simulation of the spin-boson model with superconducting phase qubit coupled to a transmission line

被引：0
作者：
LongBao Yu
NingHua Tong
ZhengYuan Xue
ZiDan Wang
ShiLiang Zhu
机构：
[1] South China Normal University,Laboratory of Quantum Information Technology, and School of Physics and Telecommunication Engineering
[2] Hefei Normal University,School of Electronic and Information Electronic Engineering
[3] Renmin University of China,Department of Physics
[4] the University of Hong Kong,Department of Physics and Center of Theoretical and Computational Physics
来源：
Science China Physics, Mechanics and Astronomy | 2012年 / 55卷
关键词：
spin-boson model; superconducting qubit; quantum phase transition; numerical renormalization group method;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on the rapid experimental developments of circuit QED, we propose a feasible scheme to simulate the spin-boson model with superconducting circuits, which can be used to detect quantum Kosterlitz-Thouless (KT) phase transition. We design the spinboson model by using a superconducting phase qubit coupled to a semi-infinite transmission line, which is regarded as a bosonic reservoir with a continuum spectrum. By tuning the bias current or the coupling capacitance, the quantum KT transition can be directly detected through tomography measurement on the states of the phase qubit. We also estimate the experimental parameters using the numerical renormalization group method.
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页码：1557 / 1561
页数：4
相关论文
共 46 条
[1]  
Feynman R. P.(1982)Simulating physics with computers Int J Theor Phys 216-7 467-488
[2]  
Leggett A. J.(1987)Dynamics of the dissipative two-state system Rev Mod Phys 591 1-85
[3]  
Chakravarty S.(2008)Numerical renormalization group method for quantum impurity systems Rev Mod Phys 802 395-450
[4]  
Dorsey A. T.(2005)Numerical renormalization group for quantum impurities in a bosonic bath Phys Rev B 71 045122-400
[5]  
Bulla R.(2006)Signatures of a noise-induced quantum phase transition in a mesoscopic metal ring Phys Rev Lett 971 016802-47
[6]  
Costi T. A.(2004)Coulomb blockade of a noisy metallic box: A realization of Bose-Fermi kondo models Phys Rev Lett 9219 196804-892
[7]  
Pruschke T.(2002)Occupation of a resonant level coupled to a chiral luttinger liquid Phys Rev Lett 8822 226404-167
[8]  
Bulla R.(2008)Dissipative quantum Ising model in a coldatom spin-boson mixture Phys Rev A 775 051601-314
[9]  
Lee H. J.(2007)Universal and measurable entanglement entropy in the spin-boson model Phys Rev Lett 98 220401-undefined
[10]  
Tong N. H.(2001)Quantum-state engineering with Josephson-junction devices Rev Mod Phys 732 357-undefined
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