The quantum adiabatic theorem is the basis of adiabatic quantum computation.However,the exact necessary and sufficient conditions for adiabatic evolution are still under debate.We discuss the adiabatic condition of a ...The quantum adiabatic theorem is the basis of adiabatic quantum computation.However,the exact necessary and sufficient conditions for adiabatic evolution are still under debate.We discuss the adiabatic condition of a system undergoing a special evolution route,and obtain an explicit formula that is necessary and sufficient for the adiabatic evolution in this route.Based on this formula,we find that the traditional adiabatic condition is neither sufficient nor necessary.Finally,we show that no adiabatic process can occur even the evolution speed goes to 0 in some examples,which is surprising since the adiabatic theorem states that if the evolution of a system is slow enough,the adiabatic process could occur.展开更多
A community of shared destiny(whose content is the same as community of shared future, an update translation) is the guiding principle and strategic objective of China's diplomacy, and is just, peaceful, inclusive...A community of shared destiny(whose content is the same as community of shared future, an update translation) is the guiding principle and strategic objective of China's diplomacy, and is just, peaceful, inclusive, comprehensive and scientific. It reflects a rational concept of how a rising China handles relations with the outside world. It rejects analysis and understanding of simple traditional thinking that a strong power is bound to seek hegemony. However, the Chinese diplomacy also needs Chinese thinking and perspectives. With analysis eclecticism and incorporated process constructivism to carry out study on the international relations, it can be found that the community of shared destiny is an economic, political and security order, is also a concept order; while a community of shared interests is its foundation, a community of shared security is its guarantee, the common knowledge composes its highest standard. Common security is the important guarantee and strategic goal for the community of shared destiny, i.e. it shows that the peaceful development strategy highlights the reasonable security demands of others China respects; win-win cooperation principle reflects the importance of cooperative security in the international pattern of deepening interdependence; partnership strategy shows diplomatic efforts of Chinese exploration and practice of the new security concept beyond "security alliance".展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 11174370.
文摘The quantum adiabatic theorem is the basis of adiabatic quantum computation.However,the exact necessary and sufficient conditions for adiabatic evolution are still under debate.We discuss the adiabatic condition of a system undergoing a special evolution route,and obtain an explicit formula that is necessary and sufficient for the adiabatic evolution in this route.Based on this formula,we find that the traditional adiabatic condition is neither sufficient nor necessary.Finally,we show that no adiabatic process can occur even the evolution speed goes to 0 in some examples,which is surprising since the adiabatic theorem states that if the evolution of a system is slow enough,the adiabatic process could occur.
文摘A community of shared destiny(whose content is the same as community of shared future, an update translation) is the guiding principle and strategic objective of China's diplomacy, and is just, peaceful, inclusive, comprehensive and scientific. It reflects a rational concept of how a rising China handles relations with the outside world. It rejects analysis and understanding of simple traditional thinking that a strong power is bound to seek hegemony. However, the Chinese diplomacy also needs Chinese thinking and perspectives. With analysis eclecticism and incorporated process constructivism to carry out study on the international relations, it can be found that the community of shared destiny is an economic, political and security order, is also a concept order; while a community of shared interests is its foundation, a community of shared security is its guarantee, the common knowledge composes its highest standard. Common security is the important guarantee and strategic goal for the community of shared destiny, i.e. it shows that the peaceful development strategy highlights the reasonable security demands of others China respects; win-win cooperation principle reflects the importance of cooperative security in the international pattern of deepening interdependence; partnership strategy shows diplomatic efforts of Chinese exploration and practice of the new security concept beyond "security alliance".
