Integration of Grassmann variables over invariant functions on flat superspaces
Integration of Grassmann variables over invariant functions on flat superspaces
复制标题
格拉斯曼变量在平坦超空间上的不变函数上的积分
DOI:
10.1063/1.3049630
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
T. Guhr
中科院分区:
文献类型:
--
作者:
M. Kieburg;H. Kohler;T. Guhr
We study integration over functions on superspaces. These functions are invariant under a transformation which maps the whole superspace onto the part of the superspace which only comprises purely commuting variables. We get a compact expression for the differential operator with respect to the commuting variables which results from Berezin integration over all Grassmann variables. Also, we derive Cauchy--like integral theorems for invariant functions on supervectors and symmetric supermatrices. This extends theorems partly derived by other authors. As an physical application, we calculate the generating function of the one--point correlation function in random matrix theory. Furthermore, we give another derivation of supermatrix Bessel--functions for U(k_1/k_2).
影响因子:
2.4
作者:
P. Littelmann;H.-J. Sommers;M.R. Zirnbauer
通讯作者:
M.R. Zirnbauer
影响因子:
1.6
作者:
J.E. Bunder;K.B. Efetov;V.E. Kravtsov;O.M. Yevtushenko;M.R. Zirnbauer
通讯作者:
M.R. Zirnbauer