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考文獻(xiàn)[1] EINSTAIN A. Ann. Phys[J]. 1905 (17): 132148; G. N. Lewis, Nature [J]. 1926 (118): 874.[2] ZEILINGER A., WEIHS G., JENNEWEIN T., ASPELMEYER M., Nature[J]. 2005 (433): 230. [3] LUCAS R. Europhysics News[J] 2001(31).[4] IACHELLO F ,Arima A. The interacting boson model[M].Cambridge: Cambridge University Press, 1987.?!?… … …圖1 時原子核的極形變的形狀示意圖(取自文獻(xiàn)[3])Fig. 1 Sketch of the shape of a nucleus in pole deformation with ( taken from Ref. [3] )近年來的研究表明,在較高激發(fā)能和較高角動量情況下,原子核的集體能譜消失,即出現(xiàn)帶終結(jié)現(xiàn)象[5],這表明發(fā)生了由集體運(yùn)動到單粒子運(yùn)動的相變。人們通常利用將核半徑按球諧函數(shù)展開來描述原子核的形狀,并將相應(yīng)的形變稱為極形變(如圖1所示)。關(guān)鍵詞:原子核物理;強(qiáng)相互作用物質(zhì);相與相變Phase Transitions of Nucleus and Strong Interacting MatterLIU Yuxin 1,2,3 MU Liangzhu1 CHANG Lei1(1. Department of Physics, Peking University, Beijing 100871,China2. The Key Laboratory of Heavy Ion Physics at Peking University, Ministry of Education, Beijing 100871,China3. Center of Theoretical Nuclear Physics, National Laboratory o