scholarly journals Bound states in the one-dimensional two-particle Hubbard model with an impurity

2013 ◽  
Vol 87 (2) ◽  
Author(s):  
J. M. Zhang ◽  
Daniel Braak ◽  
Marcus Kollar
AIP Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 125127
Author(s):  
Václav Janiš ◽  
Antonín Klíč ◽  
Jiawei Yan

2020 ◽  
Vol 35 (23) ◽  
pp. 2050140
Author(s):  
Eduardo López ◽  
Clara Rojas

We solve the one-dimensional time-independent Klein–Gordon equation in the presence of a smooth potential well. The bound state solutions are given in terms of the Whittaker [Formula: see text] function, and the antiparticle bound state is discussed in terms of potential parameters.


2014 ◽  
Vol 90 (24) ◽  
Author(s):  
Luis Seabra ◽  
Fabian H. L. Essler ◽  
Frank Pollmann ◽  
Imke Schneider ◽  
Thomas Veness

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