PreprintCC BY-NC-ND 4.0arXiv
Nonreciprocity Propels Nematic Defects
Abstract
Nonreciprocal interactions are a generic source of nonequilibrium dynamics, yet their consequences for nematic topological defects remain unexplored. We introduce a nonreciprocal nematic model on a two-dimensional hexagonal lattice and formulate a continuum theory containing a nematic nonreciprocal torque. In the deterministic limit, simulations and symmetry analysis show that this torque drives +1/2 defects to self-propel along their polar axes. Nonreciprocity modifies the splitting pathway of integer +1 defects. These results identify a symmetry-resolved route from nonreciprocity to nematic defect transport and topological reorganization, distinct from active-stress-driven motion.
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BibTeX
@misc{cao2026nonreciprocity,
title = {{Nonreciprocity Propels Nematic Defects}},
author = {Yunpeng Cao and Yu Du and Yao Li},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.39037},
eprint = {2610.39037},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.39037},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Nonreciprocity Propels Nematic Defects
AU - Yunpeng Cao
AU - Yu Du
AU - Yao Li
PY - 2026
DA - 2026/10/28
PB - arXiv
DO - 10.48550/arxiv.2610.39037
UR - https://arxiv.org/abs/2610.39037
AB - Nonreciprocal interactions are a generic source of nonequilibrium dynamics, yet their consequences for nematic topological defects remain unexplored. We introduce a nonreciprocal nematic model on a two-dimensional hexagonal lattice and formulate a continuum theory containing a nematic nonreciprocal torque. In the deterministic limit, simulations and symmetry analysis show that this torque drives +1/2 defects to self-propel along their polar axes. Nonreciprocity modifies the splitting pathway of integer +1 defects. These results identify a symmetry-resolved route from nonreciprocity to nematic defect transport and topological reorganization, distinct from active-stress-driven motion.
ER -