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Ai Qing; Wang YingDan; Long GuiLu; Sun ChangPu; Long, GL , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
Two mode photon bunching effect as witness of quantum criticality in circuit QED
Source PublicationSCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
KeywordPhase-transition Entanglement
AbstractWe suggest a scheme to probe critical phenomena at a quantum phase transition (OPT) using the quantum correlation of two photonic modes simultaneously coupled to a critical system. As an experimentally accessible physical implementation, a circuit QED system is formed by a capacitively coupled Josephson junction qubit array interacting with one superconducting transmission line resonator (TLR). It realizes an Ising chain in the transverse field (ICTF) which interacts with the two magnetic modes propagating in the TLR. We demonstrate that in the vicinity of criticality the originally independent fields tend to display photon bunching effects due to their interaction with the ICTF. Thus, the occurrence of the OPT is reflected by the quantum characteristics of the photonic fields.
2009
ISSN1672-1799
Volume52Issue:12Pages:1898-1905
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Basic Research Program of China[2006CB921106]; National Natural Science Foundation of China[10874098]; ECIST-FET; Swiss SNF; NCCR Nanoscience ; National Basic Research Program of China[2006CB921106]; National Natural Science Foundation of China[10874098]; ECIST-FET; Swiss SNF; NCCR Nanoscience ; National Basic Research Program of China[2006CB921106]; National Natural Science Foundation of China[10874098]; ECIST-FET; Swiss SNF; NCCR Nanoscience ; National Basic Research Program of China[2006CB921106]; National Natural Science Foundation of China[10874098]; ECIST-FET; Swiss SNF; NCCR Nanoscience
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5205
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLong, GL , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Ai Qing,Wang YingDan,Long GuiLu,et al. Two mode photon bunching effect as witness of quantum criticality in circuit QED[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(12):1898-1905.
APA Ai Qing,Wang YingDan,Long GuiLu,Sun ChangPu,&Long, GL , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.(2009).Two mode photon bunching effect as witness of quantum criticality in circuit QED.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(12),1898-1905.
MLA Ai Qing,et al."Two mode photon bunching effect as witness of quantum criticality in circuit QED".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.12(2009):1898-1905.
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