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math-ph2019★ 25 cited
Relativistic PT-symmetric fermionic theories in 1+1 and 3+1 dimensions
Alireza Beygi, S. P. Klevansky, C. M. Bender
Relativistic PT-symmetric fermionic interacting systems are studied in 1+1 and 3+1 dimensions. The objective is to include non-Hermitian PT-symmetric interaction terms that give {\…
math-ph2017★ 11 cited
Analytic structure of eigenvalues of coupled quantum systems
Carl M. Bender, Alexander Felski, Nima Hassanpour +2
By analytically continuing the coupling constant of a coupled quantum theory, one can, at least in principle, arrive at a state whose energy is lower than the ground state of t…