Spin-dependent linear confinement in a magnetic medium.

The linear confinement in two-dimensions can yield an analogue of a triangular well or a quantum bouncer. We discuss a way of achieving a linear confinement of a neutral particle with a permanent magnetic dipole moment in a magnetic medium by dealing with a two-dimensional system with cylindrical symmetry. This linear confinement is characterized by being spin-dependent. Then, by including the Aharonov–Casher geometric quantum phase, we show that bound states analogous to those of the quantum bouncer can be achieved, where the energy levels are infinitely degenerated with regard to the ℓ -waves. Further, we obtain the revival time of the system. • Spin-dependent linear potential. • Analogue of the triangular well with the cylindrical symmetry. • Energy levels are infinitely degenerated with regard to the l -waves. [ABSTRACT FROM AUTHOR]