1. Physics Department, Tsinghua University, Beijing 100084, China;2. School of Physics, Peking University, Beijing 100871, China;3. Institute of Theoretical Physics, Academia Sinica, Beijing 100080, China
Abstract:
Bound states, such as qq and q^-q, may exist the volume of the bound states may evoke a reduction in investigate qualitatively the volume effect on the properties states start to be completely melted.