Babu Varghese, Sastry Srikanth
Theoretical Sciences Unit and School of Advanced Materials, Jawaharlal Nehru Center for Advanced Scientific Research, Jakkur Campus, Bengaluru 560064, India.
Phys Rev E. 2022 Apr;105(4):L042901. doi: 10.1103/PhysRevE.105.L042901.
We study numerically the critical behavior and marginal stability of the shear jamming transition for frictionless soft spheres, observed to occur over a finite range of densities, associated with isotropic jamming for densities above the minimum jamming (J-point) density. Several quantities are shown to scale near the shear jamming point in the same way as the isotropic jamming point. We compute the exponents associated with the small force distribution and the interparticle gap distribution and show that the corresponding exponents are consistent with the marginal stability condition observed for isotropic jamming and with predictions of the mean-field theory of jamming in hard spheres.
我们对无摩擦软球的剪切堵塞转变的临界行为和边际稳定性进行了数值研究，观察到这种转变发生在有限的密度范围内，与高于最小堵塞（J点）密度的各向同性堵塞相关。结果表明，在剪切堵塞点附近，几个量的标度方式与各向同性堵塞点相同。我们计算了与小力分布和粒子间间隙分布相关的指数，并表明相应的指数与各向同性堵塞所观察到的边际稳定性条件以及硬球堵塞平均场理论的预测一致。
