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| 1 | Simulation of the spin-boson model with superconducting phase qubit coupled to a transmission line显示文摘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. | YU LongBao TONG NingHua XUE ZhengYuan WANG ZiDan ZHU ShiLiang | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，9： | 6 |
| 2 | Quantum cloning with multicopy in d-dimensions显示文摘The explicit transformations of the 1→ 3 optimal universal quantum cloning and the optimal phase-covariant quantum cloning in d-dimensions are presented, and the dimensionalities of their ancillary systems are both d-dimensions. As d→∞ , their clone fidelities move toward 1/3, showing a classical limit for the fidelity of quantum cloning. Based on the reduction of the unitary transformation of quantum cloning, the transformation of the 1→M=d+1 optimal economical phase-covariant quantum cloning in d-dimensions is derived, and the clone fidelity is covered by the theoretical value. | ZHANG WenHai YU LongBao YANG Ming CAO ZhuoLiang | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，12： | 3 |
| 3 | Optical scheme for realization of optimal unambiguous state discrimination of the JS limit显示文摘We exploit optimal probabilistic cloning to rederive the JS limit.Dependent on the formulation given by the optimal probabilistic cloning,the explicit transformation of a measure of the JS limit is presented.Based on linear optical devices,we propose an experimentally feasible scheme to implement the JS limit measure of a general pair of two nonorthogonal quantum states.The success probability of the proposed scheme is unity. | ZHANG WenHai YU LongBao CAO ZhuoLiang YE Liu | 2013 | Science China Chemistry2013，56，3： | 1 |
| 4 | Gas phase dehydration of glycerol catalyzed by rutile TiO 2 -supported heteropolyacids显示文摘 | Lingqin Shen Yonghai Feng Hengbo Yin Aili Wang Longbao Yu Tingshun Jiang Yutang Shen Zhanao Wu | 2011 | Journal of Industrial and Engineering Chemistry2011，，3： | 1 |
| 5 | Multicopy quantum state discrimination显示文摘In this paper, we study the problem of multicopy quantum two-state discrimination. By exploring the quantum hypothesis testing, i.e., the probabilistic quantum cloning, we derive the upper bounds of the minimal error discrimination (MED) and the optimal unambiguous discrimination (OUD), which coincides with the Helstrom theorem and the JS limit. Furthermore, when prior probabilities are unknown, we derive the minimax MED and the minimax OUD. Based on the optimal N→M probabilistic quantum cloning, we present the optimal strategies of collective measurements of the MED and the OUD. When the number of the copies is infinite, regardless of whether prior probabilities are known or not, the success probabilities of the MED and the OUD go to 100%, in accordance with the quantum measurement hypothesis that unknown quantum state can be determined if and only if infinite identical quantum state copies are given. | ZHANG WenHai YU LongBao YANG Ming ZhuoLiang | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，1： | 1 |
| 6 | Ultrasmall silver nanoparticles supported on silica and their catalytic performances for carbonmonoxide oxidation显示文摘 | Yu Longbao Shi Yayu Zhao Zhen | 2011 | Catalysis Communications2011，12，7： | 1 |
| 7 | Evolution of rutile TiO 2 coating layers on lamellar sericite surface induced by Sn 4+ and the pigmentary properties显示文摘 | Min Ren Hengbo Yin Zhangzhun Lu Aili Wang Longbao Yu Tingshun Jiang | 2010 | Powder Technology2010，，2： | 1 |
| 8 | Sequential stabilization of RNF220 by RLIM and ZC4H2 during cerebellum development and Shh-group medulloblastoma progression显示文摘Sonic hedgehog (Shh) signaling is essential for the proliferation of cerebellar granule neuron progenitors (CGNPs), and its misregulation is linked to various disorders, including cerebellar cancer medulloblastoma (MB). During vertebrate neural development, RNF220, a ubiquitin E3 ligase, is involved in spinal cord patterning by modulating the subcellular location of glioma-associated oncogene homologs (Glis) through ubiquitination. RNF220 is also required for full activation of Shh signaling during cerebellum development in an epigenetic manner through targeting embryonic ectoderm development. ZC4H2 was reported to be involved in spinal cord patterning by acting as an RNF220 stabilizer. Here, we provided evidence to show that ZC4H2 is also required for full activation of Shh signaling in CGNP and MB progression by stabilizing RNF220. In addition, we found that the ubiquitin E3 ligase RING finger LIM domain-binding protein (RLIM) is responsible for ZC4H2 stabilization via direct ubiquitination, through which RNF220 is also thus stabilized. RLIM is a direct target of Shh signaling and is also required for full activation of Shh signaling in CGNP and MB cell proliferation. We further provided clinical evidence to show that the RLIM‒ZC4H2‒RNF220 cascade is involved in Shh-group MB progression. Disease-causative human RLIM and ZC4H2 mutations affect their interaction and regulation. Therefore, our study sheds light on the regulation of Shh signaling during cerebellar development and MB progression and provides insights into neural disorders caused by RLIM or ZC4H2 mutations. | Yuwei Li Chencheng Yang Huishan Wang Ling Zhao Qinghua Kong Yu Cang Shuhua Zhao Longbao Lv Yan Li Bingyu Mao Pengcheng Ma | 2022 | Journal of Molecular Cell Biology2022，14，1： | 0 |
| 9 | Geometric measure of quantum discord and the geometry of a class of two-qubit states显示文摘We investigate the geometric picture of the level surfaces of quantum entanglement and geometric measure of quantum discord(GMQD) of a class of X-states, respectively. This pictorial approach provides us a direct understanding of the structure of entanglement and GMQD. The dynamic evolution of GMQD under two typical kinds of quantum decoherence channels is also investigated. It is shown that there exists a class of initial states for which the GMQD is not destroyed by decoherence in a finite time interval. Furthermore, we establish a factorization law between the initial and final GMQD, which allows us to infer the evolution of entanglement under the influences of the environment. | SONG Wei YU LongBao DONG Ping LI DaChuang YANG Ming CAO ZhuoLiang | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，4： | 0 |
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