Berry Phase in the Gravitational Quantum Well and the Seiberg-Witten map

TL;DR

This paper calculates the Berry phase in a noncommutative gravitational quantum well, showing that different Seiberg-Witten maps affect partial contributions but do not alter the total phase, confirming physical invariance.

Contribution

It provides an explicit computation of the Berry phase for various Seiberg-Witten maps in the noncommutative gravitational quantum well, demonstrating invariance of physical properties.

Findings

Partial Berry phase contributions depend on the chosen SW map.

Total Berry phase over a closed path is zero, independent of the SW map.

Physical properties remain unaffected by the choice of SW map.

Abstract

We explicitly compute the geometrical Berry phase for the noncommutative gravitational quantum well for different SW maps. We find that they lead to different partial contributions to the Berry phase. For the most general map we obtain that $\Delta\gamma(S)\sim{\eta}^3$, in a segment S of the path in the configuration space where $\sqrt{\eta}$ is the fundamental momentum scale for the noncommutative gravitational quantum well. For the full closed path, we find, through an explicit computation, that $\gamma(C)=0$. This result is consistent with the fact that physical properties are independent of the SW map and shows that these maps do not introduce degeneracies or level crossing in the noncommutative extensions of the gravitational quantum well.