C. M. Bender and S. Boettcher, Phys. Rev. Lett, vol.80, p.5243, 1998.

A. Mostafazadeh, J. Math. Phys, vol.43, p.205, 2002.

M. , Phys. Lett. A, vol.259, p.220, 1999.

F. Cannata, G. Junker, and J. Trost, Phys. Lett. A, vol.246, p.219, 1998.

M. , Phys. Lett. A, vol.264, p.108, 1999.

M. Znojil and G. Lévai, Phys. Lett. A, vol.271, p.327, 2000.

A. Khare and B. P. , Phys. Lett. A, vol.272, p.53, 2000.

M. Znojil and M. Tater, J. Phys. A: Gen, vol.34, p.1793, 2001.

Z. Ahmed, Phys. Lett. A, vol.282, p.343, 2001.

B. Roy and R. Roychoudhury, J. Phys. A Math. Theor, vol.40, p.8479, 2007.

C. M. Bender, D. C. Brody, and H. F. Jones, Phys. Rev. Lett, vol.89, p.270401, 2002.

, Phys. Rev. Lett, vol.92, p.119902, 2004.

A. Ruschhaupt, F. Delgado, and J. G. Muga, J. Phys. A: Math. Gen, vol.38, p.171, 2005.

B. Liu, L. Li, and D. Mihalache, Rom. Rep. Phys, vol.67, p.802, 2015.

D. Mihalache, Rom. Rep. Phys, vol.67, p.1383, 2015.

M. Wimmer, M. Miri, D. Christodoulides, and U. Peschel, Sci. Rep, vol.5, pp.112-113, 2015.

R. J. Lombard and R. Mezhoud,

P. Li, B. Liu, L. Li, and D. Mihalache, Rom. J. Phys, vol.61, p.577, 2016.

Y. Chen, Nonl. Dyn, vol.85, p.2801, 2016.

C. M. Bender, Rep. Prog. Phys, vol.70, p.947, 2007.

Y. He, X. Zhu, and D. Mihalache, Rom. J. Phys, vol.61, p.595, 2016.

V. V. Konotop, J. Yang, and D. A. Zezyulin, Rev. Mod. Phys, vol.88, p.35002, 2016.

C. M. Bender, F. Cooper, P. N. Meisinger, and V. M. Savage, Phys. Lett. A, vol.259, p.224, 1999.

. See, S. Instance, and . Flügge, Practical Quantum Mechanics, 1994.

M. Abramovitz and I. A. , Stegun Handbook of Mathematical Functions National Bureau of Standards, 1972.

A. Comtet, J. Luck, C. Texier, and Y. Tourigny, J. Stat. Phys, vol.150, p.13, 2013.

O. Vallée and M. Soares, Airy functions and applications to physics, 2010.

K. Kumar, K. J. Le-couteur, and M. K. Roy, Nucl. Phys, vol.42, p.524, 1963.

K. A. Brueckner, S. Buchler, R. J. Jorna, and . Lombard, Phys. Rev, vol.171, pp.112-113, 1968.