E.P. Sheshin - Dr.Sc. (Phys.-Math.), Professor, Moscow Institute of Physics and Technology. E-mail: sheshin@mail.mipt.ru
A.J. Kolodjazhnyj - Student, Moscow Institute of Physics and Technology. E-mail: kolodyazhnyj@gmail.com
A.L. Shornikova - Post-graduate Student, Moscow Institute of Physics and Technology. E-mail: kolodyazhnyj@gmail.com

E.P. Sheshin - Dr.Sc. (Phys.-Math.), Professor, Moscow Institute of Physics and Technology. E-mail: sheshin@mail.mipt.ru A.J. Kolodjazhnyj - Student, Moscow Institute of Physics and Technology. E-mail: kolodyazhnyj@gmail.com A.L. Shornikova - Post-graduate Student, Moscow Institute of Physics and Technology. E-mail: kolodyazhnyj@gmail.com