“…This equation is of particular interest in fractional quantum mechanics in the study of particles on stochastic fields modeled by Lévy processes. 4,5 Also, a detailed mathematical descriptions of Caffarell and Silvestre 6 can be found in the Appendix of Dávila et al 7 In recent years, with the aid of variational methods, the existence, nonexistence, and multiplicity results of various solutions for (1) have been extensively investigated, see, for instance, previous studies [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] and the references therein. Furthermore, there have been enormous results considered the concentration property of solutions, see, for instance, previous studies 3,7,24,25 and the references therein.…”