VTechWorks staff will be away for the Thanksgiving holiday starting at noon on Wednesday, November 21, through Friday, November 23, and will not be replying to requests during this time. Thanks for your patience, and happy holidays!
on the number of bound states for the one-dimensional Schrodinger equation
Abstract
The number of bound states of the one-dimensional Schrodinger equation is analyzed in terms of the number of bound states corresponding to ''fragments'' of the potential. When the potential is integrable and has a finite first moment, the sharp inequalities 1 -p + Sigma(j=1)(p) N(j)less than or equal to N less than or equal to Sigma(j=1)(p) N-j are proved, where p is the number of fragments, N is the total number of bound states, and N-j is the number of bound states for the jth fragment. When p=2 the question of whether N=N-1 +N-2 or N=N-1+N-2-1 is investigated in detail. An illustrative example is also provided. (C) 1998 American Institute of Physics.