Twist-angle dependence of the critical displacement field u_D^c

Determine the dependence of the critical displacement field u_D^c on the twist angle θ in twisted bilayer WSe2 at which the variational ground state changes from a chiral superconducting phase to a nematic superconducting phase.

Background

The authors find, via variational analysis, a chiral superconducting ground state at small displacement fields that transitions to a nematic state beyond a critical displacement field u_D^c. For θ = 5°, they estimate u_D^c ≈ 50 meV but do not determine how u_D^c varies with twist angle.

A systematic paper of u_D^c(θ) would clarify the phase diagram and guide experiments by identifying the parameter regimes where chiral versus nematic superconductivity is expected.