Motivated by a recent argument that the superconducting (SC) transition fieldof three-dimensional (3D) disordered superconductors with granular structure ina nonzero magnetic field should lie above $H_{c2}(0)$ in low $T$ limit, theglass transition (or, in 2D, crossover) curve $H_g(T)$ of disordered quantumJosephson junction arrays is examined by incorporating SC fluctuations. It isfound that the glass transition or crossover in the granular materials can bedescribed on the same footing as the vortex-glass (VG) transition inamorphous-like (i.e., nongranular) materials. In most of 3D granular systems,the vanishing of resistivity upon cooling should occur even above $H_{c2}(0)$,while the corresponding sharp drop of the resistivity in 2D case may appearonly below $H_{c2}$ as a result of an enhanced quantum fluctuation.
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