Breaking of PT-symmetry in bounded and unbounded scattering systems

• Main Authors: Ambichl, Philipp, Makris, Konstantinos G., Ge, Li, Chong, Yidong, Stone, A. Douglas, Rotter, Stefan
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Mathematics
• Online Access: https://hdl.handle.net/10356/102331; http://hdl.handle.net/10220/18974
• Institution: Nanyang Technological University

PT-symmetric scattering systems with balanced gain and loss can undergo a symmetry-breaking transition in which the eigenvalues of the nonunitary scattering matrix change their phase shifts from real to complex values. We relate the PT-symmetry-breaking points of such an unbounded scattering system...