Probmes with bonds passing through each other

Dear Lammps Users,


I have two strings of beads, where String-1 and String-2 are interacted by LJ potential.

Since the bond length (bead-bead distance) within one string is big, sometimes I observed that the bonds in two different strings passing through each other. So I was wondering if there is anything I can do to prevent this.

I did some searching, and found “pair_style srp”.
So I am wondering whether it is correct if I use “pair_style hybrid lj … srp …”, where lj for bead-bead interaction in different strings and srp for bond-bond interaction in different strings.

Any suggestions and recommendation would be appreciated.

Best regards,