Dirac Sea Contribution in Relativistic Random Phase Approximation
Dirac Sea Contribution in Relativistic Random Phase Approximation
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DOI：
10.1088/0954-3899/32/9/005
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发表时间：
2003-12
影响因子：
8.6
通讯作者：
S. S. Wu-S.;H. Zhang;Y. J. Yao
中科院分区：
文献类型：
--
作者：
S. S. Wu-S.;H. Zhang;Y. J. Yao
在流体动力学（QHD）中，有两种方法可以考虑相对论随机相近似（RRPA）中负能态的贡献。道森和弗恩斯塔尔推测狄拉克海是空的，而根据狄拉克空穴理论，狄拉克海应该是满的。这两种方法似乎相互矛盾。探讨了它们的密切关系和相容性，特别讨论了由Dawson-Furnstanhl的ansatz引起的基态（GS）不稳定性问题。
In the hadrodynamics (QHD) there are two methods to take account of the contribution of negative-energy states in the relativistic random phase approximation (RRPA). Dawson and Furnstahl made the ansatz that the Dirac sea were empty, while according to the Dirac hole theory the sea should be fully occupied. The two methods seem contradictory. Their close relationship and compatibility are explored and in particular the question of the ground-state (GS) instability resulting from Dawson-Furnstanhl's ansatz is discussed.