Chiral superconducting trial wavefunctions (Pfaffian and K2a) have lower variational energy than an optimized quarter Fermi liquid in a rhombohedral graphene model near the flat-band regime.
If we add a negative quadratic term (c 2 <0), the chiral superconducting states become more favorable
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Variational Monte Carlo Optimization of Topological Chiral Superconductors
Chiral superconducting trial wavefunctions (Pfaffian and K2a) have lower variational energy than an optimized quarter Fermi liquid in a rhombohedral graphene model near the flat-band regime.