Accurately modeling supercooled liquids and granular materials across a wide range of spatial dimensions with hdMD

Much insight into the physics of materials has been gained by modeling them across multiple length and time scales. Another approach that has proven particularly useful for glass-forming and granular materials is modeling them across multiple spatial dimensions d. However, the very small (and d-dependent) system sizes employed in most previous studies of these systems in d > 3 raise doubts about the validity of these studies’ conclusions. To help the glass/jamming community overcome this issue, we have developed a publicly available, open-source, parallel MD code called hdMD [Phys. Rev. E 105, 055305 (2022)] that works in arbitrary d and allows simulation of much larger systems. This poster will highlight how hdMD can be used to obtain novel results, focusing on how the character of the Gardner transition deep within the glassy state and the character of stringlike cooperative rearrangements in moderately supercooled liquids vary over the range 2 ≤ d ≤ 6.