[1] Sasa N, Satsuma J[J]. J. Phys. Soc. Jpn, 60, 409(1991).
[2] Porsezian K, Nakkeeran K[J]. Phys. Rev. Lett, 76, 3955(1996).
[3] Mihalache D, Torner L, Moldoveanu F, Panoiu N C, Truta N[J]. Phys. Rev. E, 48, 4699(1993).
[4] Ghosh S, Kundu A, Nandy S[J]. J. Math. Phys., 40, 1993(1999).
[5] Li Y S, Han W T[J]. Chin. Ann. Math., 22B, 171(2001).
[6] Gilson C, Hietarinta J, Nimmo J, Ohta Y[J]. Phys. Rev. E, 68, 016614(2003).
[7] Wright O C[J]. Chaos, Solitons Fractals, 33, 374(2007).
[8] Nimmo J, Yilmaz H[J]. J. Phys. A. Math. Theor., 48, 425202(2015).
[9] Bandelow U, Akhmediev N[J]. Phys. Rev. E, 86, 026606(2012).
[10] Li Z H, Li L, Tian H P, Zhou G S[J]. Phys. Rev. Lett., 84, 4096(2000).
[11] Ohta Y[J]. AIP Conference Proceeding, 1212, 114(2010).
[12] Zhao L C, Li S C, Ling L M[J]. Phys. Rev. E, 89, 023210(2014).
[13] Xu T, Li M, Li L[J]. Europhys. Lett., 109, 30006(2015).
[14] Liu Y K, Li B[J]. Chin. Phys. Lett., 34, 010202(2017).
[15] Ablowitz M J, Musslimani Z H[J]. Phys. Rev. Lett., 110, 064105(2013).
[16] Ablowitz M J, Musslimani Z H[J]. Stud. Appl. Math., 139, 7(2016).
[17] Ji J L, Zhu Z N[J]. Commun. Nonlinear Sci. Numer. Simul., 42, 699(2017).
[18] Lou S Y[J]. J. Math. Phys., 59, 083507(2018).
[19] Yang B, Yang J[J]. Stud. Appl. Math, 140, 178-201(2018).
[20] Song C Q, Xiao D M, Zhu Z N[J]. J. Phys. Soc. Jpn., 86, 054001(2017).
[21] Rao J, Cheng Y, He J S[J]. Stud. Appl. Math., 139, 568(2017).
[22] Rao J, Cheng Y, Porsezian K, Mihalache S, He J S[J]. Physica D, 401, 132180(2020).
[23] Ji J L, Zhu Z N[J]. J. Math. Anal. Appl., 453, 973-984(2017).