奇异物质 meaning in Chinese
exotic matter
Examples
- Because the neutrino energy loss rate in strange matter is much higher than that in neutron matter , the surface temperature of a young strange star is lower than that of an ordinary neutron star of the same age
奇异星与中子星的表面热辐射特性有显著的不同。由于奇异物质发射较多中微子，所以能量损失速度较快，因此一颗年青的奇异星，表面温度会比同年的中子星为低。 - The results show that the chiral symmetry is restored partially when the strange matter density increases and 2 plays a very important role in the strange matter which may approach the constituents of the neutron stars . in additions , we can find that the strange matter density where the - condensate emerges is led to the ratio of the nucleon number to baryon number . and the occurrence of - condensate is only in certain density and gradually increases for higher density , so we guess that - field may be necessary to carefully consider for studying the neutron stars
( 3 ) -凝聚出现时所对应的奇异物质密度值与核子在奇异物质中的比例有关。另外，虽然本文对夸克凝聚的讨论是在低密度的奇异物质中进行的，但是-凝聚的出现却需达到一定的密度值并且随密度的增大而递增，所以我们推测场可能对于仔细研究中子星是一必要因素。 - Such a process can take place in the low mass x - ray binary systems where the mass transfer from the companion to the neutron star can be larger than 0 . 5 solar masses . if the neutron star in the low mass x - ray binary accretes the matter , the central densities can reach to a state that strange - matter seeds are formed in the interiors of the star
在这个系统内，中子星可能会吞噬超过0 . 5个太阳质量的伴星物质，当中子星吸收了这些物质后，中心的密度会增加至足以产生奇异物质种子，这些种子会开始吞噬四周的中子物质，释放出大量中微子和反中微子，令星体冷却。 - There has been many papers to discuss the in - medium quark and gluon condensates in nuclear matter which use the models with su ( 2 ) l su ( 2 ) r sym - metry . now , we make use of the chiral model su ( 3 ) l su ( 3 ) n including the baryon octet to discuss the quark condensate < qq > in strange matter , where q is an up or down quark field . on the one hand , from the experimetal data , it is found that < qq > vac = - ( 225 25mev ) 3 , on the other hand , with the hellmann - feynman theorem , quark condensate can be evaluated on the hadronic level . in this paper , we will investigate the quark condensate in strange matter with the chiral symmetry su ( 3 ) l x su ( 3 ) rspontaneous breaking lagrangian to obtain the variation of the quark condensate in the strange matter when the baryon number change . it can be applied to understand the neutron stars when the neutron star are considered to be constructed by the strange matter . because nertron stars are homogeneous and at very low temperature , we will use the mean - field approximation and zero temperature throughout this paper
鉴于已有大量文献讨论了核物质中的夸克凝聚，本文将讨论在奇异物质中的夸克凝聚。而在介质中的夸克凝聚的基本公式可由hellmann - feynman理论导出，所以运用手征对称自发破缺拉氏量以及平均场近似，我们就可以讨论在奇异物质中的夸克凝聚，由所计算的结果表明： ( 1 )奇异物质中的夸克凝聚随奇异物质密度的增大而单调减小。 ( 2 ) -凝聚的出现对衰减率有影响。