Fermions and Gravitational Anomaly in Lattice Gravity

Fermions and Gravitational Anomaly in Lattice Gravity
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晶格引力中的费米子和引力异常

DOI:
10.1143/ptp/84.2.331
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
M. Shimono
M. Shimono
中科院分区:
--
文献类型:
--
作者:
M. Shimono

文献摘要

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本文将Kahler关于费米子的几何描述推广到一般离散流形上。它表明,这个处方给出了一个广义版本的Susskind费米子。在这个框架下研究了费米子与格点引力的相互作用。由二维时空中的泛函积分得到的有效作用量表明了迹反常和引力反常的格点类似物的存在。
Kahler's geometrical description of fermions without the use of spinors is extended to the systems on general discretized manifolds. It is shown that this prescription gives a generalized version of the Susskind fermions. In this framework the interaction between fermions and lattice gravity is studied. The effective action obtained from the functional integrals in two·dimensional space· time shows the existence of the lattice analogues of the trace anomaly and the gravitational anomaly.