Pair coherent state, is a state of a two-mode radiation field that is known as a state with non-gaussian wave function. In this paper, study on the pair coherent state, we notice that with superposition of two first t...Pair coherent state, is a state of a two-mode radiation field that is known as a state with non-gaussian wave function. In this paper, study on the pair coherent state, we notice that with superposition of two first terms of this states, one two-qubits formed. Because of the importance of two-qubits in theory of quantum entanglement, with two different measures with the title of concurrence and D-concurrence, we have studied the amount of entanglement and discussed its details. At the end, we describe these measures for pair coherent states as a function of the amplitude of the SU（2） coherent states.展开更多
This study explores the effects of the 4/3/2 technique on Chinese non-English majors' spoken English production by means of linguistic indices and performing indices. The findings provide further encouraging suppo...This study explores the effects of the 4/3/2 technique on Chinese non-English majors' spoken English production by means of linguistic indices and performing indices. The findings provide further encouraging support that the 4/3/2 technique has some good effects on spoken English production, not only in oral fluency but also in linguistic accuracy, complexity, and appropriateness. The qualitative analyses indicate that omitting or reducing some information is the major strategy for the subject to fit the talk into reduced available time. In addition, pauses (including ah-phenomenon) and lexical repetitions are the major strategies adopted by the subjects to gain time for planning and they use relatively fewer verbal fillers (e.g. 'I mean', 'as you know'). This paper finally puts forward some pedagogical implications of the 4/3/2 technique in foreign language teaching.展开更多
文摘Pair coherent state, is a state of a two-mode radiation field that is known as a state with non-gaussian wave function. In this paper, study on the pair coherent state, we notice that with superposition of two first terms of this states, one two-qubits formed. Because of the importance of two-qubits in theory of quantum entanglement, with two different measures with the title of concurrence and D-concurrence, we have studied the amount of entanglement and discussed its details. At the end, we describe these measures for pair coherent states as a function of the amplitude of the SU（2） coherent states.
文摘This study explores the effects of the 4/3/2 technique on Chinese non-English majors' spoken English production by means of linguistic indices and performing indices. The findings provide further encouraging support that the 4/3/2 technique has some good effects on spoken English production, not only in oral fluency but also in linguistic accuracy, complexity, and appropriateness. The qualitative analyses indicate that omitting or reducing some information is the major strategy for the subject to fit the talk into reduced available time. In addition, pauses (including ah-phenomenon) and lexical repetitions are the major strategies adopted by the subjects to gain time for planning and they use relatively fewer verbal fillers (e.g. 'I mean', 'as you know'). This paper finally puts forward some pedagogical implications of the 4/3/2 technique in foreign language teaching.
