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arXiv · 1711.07799

Single particle in a reflection-asymmetric potential

Yuanyuan Wang·Zhengxue Ren
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Abstract

Single particles moving in a reflection-asymmetric potential are investigated by solving the Schr\"{o}dinger equation of the reflection-asymmetric Nilsson Hamiltonian with the imaginary time method in 3D lattice space and the harmonic oscillator basis expansion method. In the 3D lattice calculation, the $\bm{l}^2$ divergence problem is avoided by introducing a damping function, and the$\langle \bm{l^2}\rangle_N$ term in the non-spherical case is calculated by introducing an equivalent $N$-independent operator. The efficiency of these numerical techniques is demonstrated by solving the spherical Nilsson Hamiltonian in 3D lattice space. The evolution of the single-particle levels in a reflection-asymmetric potential is obtained and discussed by the above two numerical methods, and their consistency is shown in the obtained single-particle energies with the differences smaller than 10$^{-4}~[\hbar\omega_0]$.

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Yuanyuan Wang, Zhengxue Ren. 2017-11-21. Single particle in a reflection-asymmetric potential. https://doi.org/10.1007/s11433-018-9213-7

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