Browsing by Subject "PT -symmetric theories"
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Isomorphic Hilbert spaces associated with different complex contours of the PT-symmetric (-x^4) theory
( World Scientific Publishing Co. , 2014 , Article)In this work, we stress the existence of isomorphisms which map complex contours from the upper half to contours in the lower half of the complex plane. The metric operator is found to depend on the chosen contour but the ...