Exponential asymptotics predict the eigenvalues of H = p² + x²(ix)^ε for ε < 0 with excellent agreement to numerical results.
(B.10) Notice that had we chosen the constant of integration in A0 in (4.1b) to be a general value of a0 (instead of a0 = 1), then Λ = a0/(2π) above
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Exponential asymptotics for the eigenvalues in the broken PT-symmetric region
Exponential asymptotics predict the eigenvalues of H = p² + x²(ix)^ε for ε < 0 with excellent agreement to numerical results.