On the Penning trap coherent states
Michael Genkin, Eva Lindroth · Journal of Physics A Mathematical and Theoretical · 2009
Recently, a class of coherent states of a particle in a Penning trap was derived by Fernández and Velázquez ( 2009 J. Phys. A: Math. Theor. 42 085304 ). By means of the Wigner function and density matrix associated with these states, we show that they are fully consistent with Morikawa's definition of the decoherence degree and hence they provide a possibility to directly access the decoherence process in a Penning trap.