China-LAC trade volume has risen more than 20 times in the past decade,and reached269 billion US dollars in2014.China has become the secondlargest trade partner of the LAC and largest trade partner of Brazil,Chile and...China-LAC trade volume has risen more than 20 times in the past decade,and reached269 billion US dollars in2014.China has become the secondlargest trade partner of the LAC and largest trade partner of Brazil,Chile and other LAC countries.What the influence will economically-transforming China exert on LAC economy?How will ChinaLAC trade and economic relationship diversify?What new elements will emerge in the corporate展开更多
The world New Fiber Materials Forum ＆ the 23rd China International Man-made Fiber Conference Xiaoshan 2017）China is faced with external and internal development pressures,where the world economy is gestating depth a...The world New Fiber Materials Forum ＆ the 23rd China International Man-made Fiber Conference Xiaoshan 2017）China is faced with external and internal development pressures,where the world economy is gestating depth adjustment to accelerate the upgrade of manufacturing industry,while China＇s economy has entered the new normal to promote the supply-side structural reform.展开更多
We study how can an angular momentum coherent state |τ> keeps its form-invariant during time evolution governed by the Hamiltonian H = f(t)J++ f^*(t)J-+ g(t)Jz. We discuss this topic in the context of boson realiz...We study how can an angular momentum coherent state |τ> keeps its form-invariant during time evolution governed by the Hamiltonian H = f(t)J++ f^*(t)J-+ g(t)Jz. We discuss this topic in the context of boson realization of |τ>. By employing the entangled state representation |ζ> and deriving a new binomial theorem involving two-subscript Hermite polynomials, we derive the wave function <ζ|τ>, which turns out to be a single-subscript Hermite polynomial. Based on this result the maintenance of angular momentum coherent state during time evolution is examined, and the value of τ(t) is totally determined by the parameters involved in the Hamiltonian.展开更多
文摘China-LAC trade volume has risen more than 20 times in the past decade,and reached269 billion US dollars in2014.China has become the secondlargest trade partner of the LAC and largest trade partner of Brazil,Chile and other LAC countries.What the influence will economically-transforming China exert on LAC economy?How will ChinaLAC trade and economic relationship diversify?What new elements will emerge in the corporate
文摘The world New Fiber Materials Forum ＆ the 23rd China International Man-made Fiber Conference Xiaoshan 2017）China is faced with external and internal development pressures,where the world economy is gestating depth adjustment to accelerate the upgrade of manufacturing industry,while China＇s economy has entered the new normal to promote the supply-side structural reform.
基金Project supported by the National Natural Science Foundation of China(Grant No.11347026)the Natural Science Foundation of Shandong Province,China(Grant Nos.ZR2016AM03 and ZR2017MA011)
文摘We study how can an angular momentum coherent state |τ> keeps its form-invariant during time evolution governed by the Hamiltonian H = f(t)J++ f^*(t)J-+ g(t)Jz. We discuss this topic in the context of boson realization of |τ>. By employing the entangled state representation |ζ> and deriving a new binomial theorem involving two-subscript Hermite polynomials, we derive the wave function <ζ|τ>, which turns out to be a single-subscript Hermite polynomial. Based on this result the maintenance of angular momentum coherent state during time evolution is examined, and the value of τ(t) is totally determined by the parameters involved in the Hamiltonian.
