The spectral abscissa alpha determines whether a reduced-state transform yields a protected zero (unitary) or a pole (non-unitary) in dispersion relations, with a measurable law for the zero.
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Dispersion Relations Across the Unitarity Boundary
The spectral abscissa alpha determines whether a reduced-state transform yields a protected zero (unitary) or a pole (non-unitary) in dispersion relations, with a measurable law for the zero.
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