We study supercooled dynamics in quantum hard-sphere liquid using quantum mode-coupling formulation. In the moderate quantum regime, classical cage effects lead to slower dynamics compared to strongly quantum regime, where tunneling overcomes classical caging, leading to faster relaxation. As a result, the glass transition critical density can become significantly higher than for the classical liquids. Perturbative approach is used to solve time dependent quantum mode-coupling equations to study in detail the dynamics of the supercooled liquid in moderate quantum regime. Similar to the classical case, relaxation time shows power-law increase with increasing density in the supercooled regime. However, the power-law exponent is found to be dependent on the quantumness; it increases linearly as the quantumness is increased in the moderate quantum regime.
@article{arxiv.2010.03723,
title = {Structural relaxation in quantum supercooled liquids: A mode-coupling approach},
author = {Ankita Das and Eran Rabani and Kunimasa Miyazaki and Upendra Harbola},
journal= {arXiv preprint arXiv:2010.03723},
year = {2021}
}