中国物理B ›› 2016, Vol. 25 ›› Issue (5): 50504-050504.doi: 10.1088/1674-1056/25/5/050504
Zhi-Zhong Tan(谭志中)
Zhi-Zhong Tan(谭志中)
摘要:
A rectangular m×n resistor network with an arbitrary boundary is investigated, and a general resistance formula between two nodes on an arbitrary axis is derived by the Recursion-Transform (RT) method, a problem that has never been resolved before, for the Green's function technique and the Laplacian matrix approach are inapplicable to it. To have the exact solution of resistance is important but it is difficult to obtain under the condition of arbitrary boundary. Our result is directly expressed in a single summation and mainly composed of characteristic roots, which contain both finite and infinite cases. Further, the current distribution is given explicitly as a byproduct of the method. Our framework can be effectively applied to RLC networks. As an application to the LC network, we find that our formulation leads to the occurrence of resonances at h1 = 1-cosφi-sinφicotnφi. This somewhat curious result suggests the possibility of practical applications of our formulae to resonant circuits.
中图分类号: (Lattice theory and statistics)