作者: Raphael F. Ribeiro , Joel Yuen-Zhou
DOI: 10.1021/ACS.JPCLETT.7B02592
关键词: Electronic states 、 Quantum mechanics 、 Ground state 、 Adiabatic process 、 Physics 、 Degeneracy (mathematics) 、 Continuous symmetry 、 Geometric phase 、 Homogeneous space 、 Perspective (geometry)
摘要: We develop a geometric construction to prove the inevitability of electronic ground-state (adiabatic) Berry phase for class Jahn–Teller (JT) models with maximal continuous symmetries and N > 2 intersecting states. Given that vibronic degeneracy in JT may be seen as consequence any problem obtained from subset we investigate this Letter by symmetry-breaking, our arguments reveal fundamental origin models.