Quadratic PT-symmetric operators with real spectrum and similarity to self-adjoint operators
classification
🧮 math-ph
math.MPquant-ph
keywords
operatoroperatorspt-symmetricquadraticrealself-adjointspectrumassociated
read the original abstract
It is established that a PT-symmetric elliptic quadratic differential operator with real spectrum is similar to a self-adjoint operator precisely when the associated fundamental matrix has no Jordan blocks.
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