Generalised tanh-shaped hyperbolic potential: Klein–Gordon equation's bound state solution  

作　　者：V H Badalov S V Badalov 

机构地区：[1]Institute for Physical Problems,Baku State University,1148 Baku,Azerbaijan [2]Theoretical Materials Physics,Paderborn University,D-33098 Paderborn,Germany [3]Theoretical PhysicsⅦ,University of Bayreuth,D-95440 Bayreuth,Germany

出　　处：《Communications in Theoretical Physics》2023年第7期22-32,共11页理论物理通讯（英文版）

摘　　要：The development of potential theory heightens the understanding of fundamental interactions in quantum systems.In this paper,the bound state solution of the modified radial Klein–Gordon equation is presented for generalised tanh-shaped hyperbolic potential from the Nikiforov–Uvarov method.The resulting energy eigenvalues and corresponding radial wave functions are expressed in terms of the Jacobi polynomials for arbitrary l states.It is also demonstrated that energy eigenvalues strongly correlate with potential parameters for quantum states.Considering particular cases,the generalised tanh-shaped hyperbolic potential and its derived energy eigenvalues exhibit good agreement with the reported findings.Furthermore,the rovibrational energies are calculated for three representative diatomic molecules,namely H2,HCl and O2.The lowest excitation energies are in perfect agreement with experimental results.Overall,the potential model is displayed to be a viable candidate for concurrently prescribing numerous quantum systems.

关 键 词：Klein-Gordon equation hyperbolic potential Nikiforov-Uvarov method diatomic molecules 

分 类 号：O413.1[理学—理论物理] O175.27[理学—物理]