Listening is the breakthrough for conquering English castle, it is not only the requirement of English test, but also the practical use of English knowledge and the embodiment of English comprehensive ability. Listeni...Listening is the breakthrough for conquering English castle, it is not only the requirement of English test, but also the practical use of English knowledge and the embodiment of English comprehensive ability. Listening teaching plays a crucial role in foreign language teaching. However, the effect of listening teaching is undesirable. In recent years, multi-modality theory has been focused by many researchers. In view of particularity of the listening teaching, it is urgent to apply the multi-modality theory to English listening teaching which will produce very good teaching result.展开更多
By using the concept of negativity, we investigate the thermal entanglement of a two-spin (1/2, 3/2) mixed-spin Heisenberg XX chain with an inhomogeneous external magnetic field. We obtain the analytical results of en...By using the concept of negativity, we investigate the thermal entanglement of a two-spin (1/2, 3/2) mixed-spin Heisenberg XX chain with an inhomogeneous external magnetic field. We obtain the analytical results of entanglement of this model. For the case of uniform magnetic field, we find that the critical temperature is higher than the results of the spin-1/2 chain and (1/2,1) mixed-spin chain. And by adjusting the nonuniform parameter b, one is able to obtain more entanglement at a higher temperature.展开更多
文摘Listening is the breakthrough for conquering English castle, it is not only the requirement of English test, but also the practical use of English knowledge and the embodiment of English comprehensive ability. Listening teaching plays a crucial role in foreign language teaching. However, the effect of listening teaching is undesirable. In recent years, multi-modality theory has been focused by many researchers. In view of particularity of the listening teaching, it is urgent to apply the multi-modality theory to English listening teaching which will produce very good teaching result.
文摘By using the concept of negativity, we investigate the thermal entanglement of a two-spin (1/2, 3/2) mixed-spin Heisenberg XX chain with an inhomogeneous external magnetic field. We obtain the analytical results of entanglement of this model. For the case of uniform magnetic field, we find that the critical temperature is higher than the results of the spin-1/2 chain and (1/2,1) mixed-spin chain. And by adjusting the nonuniform parameter b, one is able to obtain more entanglement at a higher temperature.
