Progress of Theoretical Physics
On the Velocity Operator in Many-Boson System
Sigenobu Sunakawa, Shuichiro Yamasaki, T. Kebukawa
Abstract
Progress of Theoretical Physics Vol. 53 No. 5 (1975) pp. 1243-1266 On the Collective Variables in Many-Boson System Shuichiro Yamasaki, Takeji Kebukawa and Sigenobu Sunakawa Progress of Theoretical Physics Vol. 54 No. 2 (1975) pp. 348-369 On the Interaction between Elementary Excitations in Many-Boson System Shuichiro Yamasaki, Takeji Kebukawa and Sigenobu Sunakawa