Thermal fluctuations and vortex lattice structures in chiral p -wave superconductors: Robustness of double-quanta vortices

We use large-scale Monte-Carlo simulations to study thermal fluctuations in chiral $p$-wave superconductors an applied magnetic field three dimensions. consider the stability of previously predicted unusual double-quanta flux-line lattice ground states such superconductors. In previous works it was shown that, neglecting fluctuations, a superconductor forms hexagonal doubly-quantized vortices, except extremely close vicinity ${H}_{c2}$ where vortices split apart. find dissociation driven by fluctuations. However, our calculations also show that predictions were ignored, are very robust considered model.