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Rui P.-S.,Anhui Xinhua University
International Journal of Theoretical Physics | Year: 2017

We investigate the probabilistic quantum cloning (PQC) of three real states with average probability distribution. To get the analytic forms of the optimal success probabilities we assume that the three states have only two pairwise inner products. Based on the optimal success probabilities, we derive the explicit form of 1 →2 PQC for cloning three real states. The unitary operation needed in the PQC process is worked out too. The optimal success probabilities are also generalized to the M→N PQC case. © 2017 Springer Science+Business Media New York

Zhou J.,Anhui Xinhua University | Zhou J.,South China Normal University | Yu W.-C.,South China Normal University | Gao Y.-M.,University of Electronic Science and Technology of China | Xue Z.-Y.,South China Normal University
Optics Express | Year: 2015

A cavity QED implementation of the non-adiabatic holonomic quantum computation in decoherence-free subspaces is proposed with nitrogen-vacancy centers coupled commonly to the whispering-gallery mode of a microsphere cavity, where a universal set of quantum gates can be realized on the qubits. In our implementation, with the assistant of the appropriate driving fields, the quantum evolution is insensitive to the cavity field state, which is only virtually excited. The implemented non-adiabatic holonomies, utilizing optical transitions in the Λ type of three-level configuration of the nitrogen-vacancy centers, can be used to construct a universal set of quantum gates on the encoded logical qubits. Therefore, our scheme opens up the possibility of realizing universal holonomic quantum computation with cavity assisted interaction on solid-state spins characterized by long coherence times. © 2015 Optical Society of America.

Xie G.,Hefei University of Technology | Xu H.,Anhui Xinhua University
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | Year: 2012

In order to improve the modeling accuracy of the switching converter system, to reduce the deviation between the model and the actual circuit and to guide the design of system chips, an updated model of power stage for non-ideal Buck converters was established on the basis of the theory of energy conservation and switch average models. This model considered the influence of every element's equivalent parasitic parameters and inductor current ripples existing in actual converters, and the influence of the output current oscillation for the circuit performance. Based on these, small-signal model non-ideal parameters were modified for the control loop of the current programmed mode non-ideal Buck converters. In the end, a small-signal model was built for the current programmed mode non-ideal Buck converter system. Analysis and simulation by Matlab were implemented. It could be seen that the new model is intuitive and has clear physical meaning. Therefore, it can reflect the actual operation of the system more accurately. © 2012 Chin. Soc. for Elec. Eng.

Zhang W.,Anhui University | Rui P.,Anhui Xinhua University | Zhang Z.,Anhui University | Yang Q.,Anhui University
New Journal of Physics | Year: 2014

By using quantum nondemolition detectors (QNDs) based on weak cross-Kerr nonlinearities, we propose an experimental scheme for achieving 1 →2 probabilistic quantum cloning (PQC) of a single-photon state, secretly choosing from a two-state set. In our scheme, after a QND is performed on the to-be-cloned photon and the assistant photon, a single-photon projection measurement is performed by a polarization beam splitter (PBS) and two single-photon trigger detectors (SPTDs). The measurement is to judge whether the PQC should be continued. If the cloning fails, a cutoff is carried out and some operations are omitted. This makes our scheme economical. If the PQC is continued according to the measurement result, two more QNDs and some unitary operations are performed on the to-be-cloned photon and the cloning photon to achieve the PQC in a nearly deterministic way. Our experimental scheme for PQC is feasible for future technology. Furthermore, the quantum logic network of our PQC scheme is presented. In comparison with similar networks, our PQC network is simpler and more economical.

Liu J.-B.,Anhui University | Liu J.-B.,Anhui Xinhua University | Pan X.-F.,Anhui University
Physica A: Statistical Mechanics and its Applications | Year: 2015

The energy of a graph G arising in chemical physics, denoted by E(G), is defined as the sum of the absolute values of the eigenvalues of G. As an analogue to E(G), the incidence energy IE(G), defined as the sum of the singular values of the incidence matrix of G, is a much studied quantity with well known applications in chemical physics. In this paper, based on the results by Yan and Zhang (2009), we propose the incidence energy per vertex problem for lattice systems, and present the closed-form formulae expressing the incidence energy of the hexagonal lattice, triangular lattice, and 33.42 lattice, respectively. Moreover, we show that the incidence energy per vertex of lattices is independent of the toroidal, cylindrical, and free boundary conditions. In particular, the explicit asymptotic values of the incidence energy in these lattices are obtained by utilizing the applications of analysis approach with the help of calculational software. © 2014 Elsevier B.V. All rights reserved.

Liu D.,Anhui Xinhua University
Guangxue Jishu/Optical Technique | Year: 2016

Based on the reflection of symmetric multi-layer thin-film, a periodic multilayer photonic crystal waveguide with a working wavelength at near 1550 mm is designed. The transmission characteristics of electromagnetic wave with the wavelength between 1515~1587 nm is analyzed according to the related theory of planar optical waveguide. The results show that only the fundamental mode (TE0 and TM0) can be transmitted and the power constraint factor (Γ) is limited between in 0.99~1, which proves that the transmission of light wave is almost completely limited within it and shows that the light control capacity of the structure is apparently greater advantage than ordinary three-layer thin-film waveguide. The omnidirectional band-gap optical waveguide can be constructed with a periodic multilayer band-gap structure. © 2016, Editorial Board of Optical Technique. All right reserved.

Wu W.W.,Anhui Xinhua University
Applied Mechanics and Materials | Year: 2013

The Chinese microblog (Weibo) grows quickly and eventually has been an essential tool for Chinese netizens. This paper proposes a cooperation-competition model for the trend of the hot issues of Sina Weibo based on some hypothesis and parameter settings. After using the equilibrium solution theory of differential equations to solve the cooperation-competition model, the appropriate strategies to control the trend of hot issues are stated. © (2013) Trans Tech Publications, Switzerland.

Li X.,Anhui Xinhua University
Proceedings of the International Conference on Management, Information and Educational Engineering, MIEE 2014 | Year: 2015

With the advent of the 21st century, within today’s globalization era, a nation or virtually the whole world is striding for a higher human civilization level. During the cross-linguistic and intercultural communication between various nations, preeminent translation work from an intercultural perspective serves as vital links to bridge those gaps and discrepancies due to the impact of culture context. Like an art, translation teaching, as well as training, demands ceaseless in-depth exploration into the more interdisciplinary domains, its tactics and techniques go far beyond the linguistic category. While proceeding with this work, teachers focus on the cultural connotations of both original language and target language in the given culture context. In the undergraduate syllabus of the English major, Translation Studies, a compulsory course, is conducted to enhance student’s translating competence and cultural appreciation capability, assist them to solve some corresponding issues induced by cultural discrepancies during transformation between original language and target language, and advance cross-cultural communicative awareness and quality, by introducing general theories and principles of translation, with languages as the cultural carrier, which involves studies such as the English language, British and American cultures as well as different customs, cultural elements of inter-lingual activity and its strategic option, etc. © 2015 Taylor & Francis Group, London.

Wang L.,Anhui Xinhua University
Proceedings of the International Conference on Management, Information and Educational Engineering, MIEE 2014 | Year: 2015

This paper explicates the importance of spoken English and its connotation. Based on the implication of grammatical competence and investigation of the status quo of college English majors’ spoken English, this paper proposes a set of strategies for use in oral English teaching practice, including input strategy and output strategy, interactive strategy, competition strategy, affective strategies, and evaluation strategies. Teachers play a leading role in the teaching process, by making flexible use of various strategies, with a view to carrying out oral activities, and guiding students’ development of oral language. Finally, a viable model for teaching strategies is proposed. © 2015 Taylor & Francis Group, London.

Wang Z.H.,Anhui Xinhua University
Proceedings of the International Conference on Management, Information and Educational Engineering, MIEE 2014 | Year: 2015

The current situation of the English major in China shows that humanistic qualities are indispensable factors in the cultivation of English majors. An experimental study is adopted to compare academic achievement and humanistic qualities of the experimental class with those of the control class both before and after the teaching experiment, aiming to explore the validity of the implementation of humanistic quality-based education in Integrated English teaching. The results indicate that humanistic quality-based education is helpful to enhance the students’ overall qualities, improve academic achievement and reform the teaching mode. © 2015 Taylor & Francis Group, London.

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