The implementation of management accounting in China＇s government units is an inevitable requirement of economic development and the important deployment of efficient government establishment. Up to now, China has ma...The implementation of management accounting in China＇s government units is an inevitable requirement of economic development and the important deployment of efficient government establishment. Up to now, China has made a lot of theoretical explorations and tried about management accounting practice in government units. But in practice, there are still some shortcomings. Therefore, based on the thought of Accounting Research Methodology written by Professor Lu Yonghua, this article carries out a comprehensive, systematic, in-depth and concrete study on the implementation of management accounting in China＇s government units. This paper argues that there are some deficiencies in management accounting practice, including lack of a complete government management accounting system, the failure of combining management accounting implementation with specific national conditions, limitations of government management accounting itself, resistance existing in government management accounting implementation, and the low quality of management accounting practitioners. In this regard, this research paper learns from foreign experience and puts forward some corresponding improvement suggestions from the perspective of legislation, empirical research, information construction, education investment and so on.展开更多
A non-Markovianity measure based on Brukner–Zeilinger invariant information to characterize nonMarkovian effect of open systems undergoing unital dynamical maps is proposed. The method takes advantage of non-increasi...A non-Markovianity measure based on Brukner–Zeilinger invariant information to characterize nonMarkovian effect of open systems undergoing unital dynamical maps is proposed. The method takes advantage of non-increasing property of the Brukner–Zeilinger invariant information under completely positive and trace-preserving unital maps. The simplicity of computing the Brukner–Zeilinger invariant information is the advantage of the proposed measure because of mainly depending on the purity of quantum state. The measure effectively captures the characteristics of non-Markovianity of unital dynamical maps. As some concrete application, we consider two typical non-Markovian noise channels, i.e., the phase damping channel and the random unitary channel to show the sensitivity of the proposed measure. By investigation, we find that the conditions of detecting the non-Markovianity for the phase damping channel are consistent with the results of existing measures for non-Markovianity, i.e., information flow, divisibility and quantum mutual information. However, for the random unitary channel non-Markovian conditions are same to that of the information flow, but is different from that of the divisibility and quantum mutual information.展开更多
文摘The implementation of management accounting in China＇s government units is an inevitable requirement of economic development and the important deployment of efficient government establishment. Up to now, China has made a lot of theoretical explorations and tried about management accounting practice in government units. But in practice, there are still some shortcomings. Therefore, based on the thought of Accounting Research Methodology written by Professor Lu Yonghua, this article carries out a comprehensive, systematic, in-depth and concrete study on the implementation of management accounting in China＇s government units. This paper argues that there are some deficiencies in management accounting practice, including lack of a complete government management accounting system, the failure of combining management accounting implementation with specific national conditions, limitations of government management accounting itself, resistance existing in government management accounting implementation, and the low quality of management accounting practitioners. In this regard, this research paper learns from foreign experience and puts forward some corresponding improvement suggestions from the perspective of legislation, empirical research, information construction, education investment and so on.
基金Supported by the National Natural Science Foundation of China under Grant No.61505053the Natural Science Foundation of Hunan Province under Grant No.2015JJ3092+1 种基金the Research Foundation of Education Bureau of Hunan Province,China under Grant No.16B177the School Foundation from the Hunan University of Arts and Science under Grant No.14ZD01
文摘A non-Markovianity measure based on Brukner–Zeilinger invariant information to characterize nonMarkovian effect of open systems undergoing unital dynamical maps is proposed. The method takes advantage of non-increasing property of the Brukner–Zeilinger invariant information under completely positive and trace-preserving unital maps. The simplicity of computing the Brukner–Zeilinger invariant information is the advantage of the proposed measure because of mainly depending on the purity of quantum state. The measure effectively captures the characteristics of non-Markovianity of unital dynamical maps. As some concrete application, we consider two typical non-Markovian noise channels, i.e., the phase damping channel and the random unitary channel to show the sensitivity of the proposed measure. By investigation, we find that the conditions of detecting the non-Markovianity for the phase damping channel are consistent with the results of existing measures for non-Markovianity, i.e., information flow, divisibility and quantum mutual information. However, for the random unitary channel non-Markovian conditions are same to that of the information flow, but is different from that of the divisibility and quantum mutual information.
