Characteristics of regionally reflectionless potentials
-
2015-01-30 https://doi.org/10.14419/ijamr.v4i1.4099 -
Gelfand-Levitan, Inverse Scattering, Relfectionless Potentials. -
Abstract
This paper considers potentials that are reflectionless for a range of energies and not reflectionless elsewhere. The focus of this paper is to see if reflection coefficients of this type have characteristics that would make it possible to solve for the associated potentials using known methods. Using the Gelfand-Levitan equation it is shown that the spectral measure function has several limits that match well to known solved cases. Thus, it seems that pursuing cases of potentials of this type is reasonable.
-
References
[1] I.M. Gelfand, B.M. Levitan, On the determination of a differential equation by its spectral function, Dokl. Akad. Nauk. USSR 77 (1951) 557-560.
[2] I.M. Gelfand, B.M. Levitan, On the determination of a differential equation by its spectral measure function, Izv. Akad. Nauk. SSR 15 (1951) 309-360.
[3] K. Chadan, P.C. Sabatier, Inverse Problems in Quantum Scattering Theory, Springer-Verlag, New York, 1977. http://dx.doi.org/10.1007/978-3-662-12125-2.
[4] R. Jost, W. Kohn, On the relation between phase shift energy levels and the potential, Danske Vid. Selsk. Math. Fys. 27 (1953) 3-19.
[5] E. Kincanon, A method to construct reflectionless potentials, Applied Mathematics and Computation, 165 (2005) 565-569. http://dx.doi.org/10.1016/j.amc.2004.04.075.
[6] J.Lekner,Reflectionless Eigenstates of the sech potential, American Journal of Physics, 75 (2007) 1151-1157. http://dx.doi.org/10.1119/1.2787015.
[7] I. Kay, H.E. Moses, Reflectionless transmission through dielectrics and scattering potentials, Journal of Applied Physics, 27 (1956) 1503-1508. http://dx.doi.org/10.1063/1.1722296.
[8] N. Kiriushcheva, S. Kuzmin, Scattering of a Gaussian wave packet by a reflectionless potential, American Journal of Physics, 66 (1998) 867-872. http://dx.doi.org/10.1119/1.18985.
[9] V. Bargmann, Remarks on the determination of the central field of force from the elastic scattering phase shift, Physical Review, 75 (1949) 301-303. http://dx.doi.org/10.1103/PhysRev.75.301.
[10] V. Bargmann, On connections between phase shifts and scattering potential, Review of Modern Physics, 21 (1949) 488-493. http://dx.doi.org/10.1103/RevModPhys.21.488.
[11] E. Kincanon, Approximate solution it the Gelfand-Levitan equation, Applied Mathematics and Computation, 53 (1993) 121-128. http://dx.doi.org/10.1016/0096-3003(93)90097-X.
-
Downloads
-
How to Cite
Kincanon, E. (2015). Characteristics of regionally reflectionless potentials. International Journal of Applied Mathematical Research, 4(1), 150-152. https://doi.org/10.14419/ijamr.v4i1.4099Received date: 2014-12-30
Accepted date: 2015-01-26
Published date: 2015-01-30