By Carl Bender and others

PT-symmetric quantum mechanics began with a study of the Hamiltonian *H=p^2+x^2(ix)^\varepsilon*. When *\varepsilon\geq0*, the eigenvalues of this non-Hermitian Hamiltonian are discrete, real, and positive. This portion of parameter space is known as the region of unbroken PT symmetry. In the region of broken PT symmetry *\varepsilon<0* only a finite number... Show more

February 26, 2017

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Behavior of eigenvalues in a region of broken-PT symmetry

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