23 citations · 52 across the 17 of their papers we have counts for
17 papers
Garrett approximation revisited
Victor Barsan
Three variants of the Garrett approximation are studied and their accuracy is analyzed, for symmetric and asymmetric square wells. Quite surprisingly, the simplest variants are als…
Inverse Langevin and Brillouin functions: mathematical properties and physical applications
Victor Barsan
This paper gives a coherent and comprehensive review of the results concerning the inverse Langevin L(x) and Brillouin functions B_J (x) and of the inverse of L(x)/x and B_J (x)/x.…
Garrett approximation for asymmetric rectangular potentials and its applications to quantum well infrared photodetectors
Victor Barsan
Garrett's approximation for the calculation of bound states energy in square wells is applied in a consistent way. So, one obtains simple formulas for these energies, with errors o…
Siewert solutions of transcendental equations, generalized Lambert functions and physical applications
Victor Barsan
We review the exact solutions of several transcendental equations, obtained by Siewert and his co-workers, in the '70s. Some of them are expressed in terms of the generalized Lambe…
Exact and approximate analytical solutions of Weiss equation of ferromagnetism and their experimental relevance
Victor Barsan, Victor Kuncser
The recent progress in the theory of generalized Lambert functions makes possible to solve exactly the Weiss equation of ferromagnetism. However, this solution is quite inconvenien…
Semiconductor quantum wells with BenDaniel - Duke boundary conditions: approximate analytical results
Victor Barsan, Mihaela-Cristina Ciornei
The Schrodinger equation for a particle moving in a square well potential with BenDaniel - Duke boundary conditions is solved. Using algebraic approximations for trigonometric func…