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nlin.CD2004
Encircling an Exceptional Point
C. Dembowski, B. Dietz, H. -D. Graef +4
We calculate analytically the geometric phases that the eigenvectors of a parametric dissipative two-state system described by a complex symmetric Hamiltonian pick up when an excep…
nlin.CD2002
Observation of a Chiral State in a Microwave Cavity
C. Dembowski, B. Dietz, H. -D. Graef +4
A microwave experiment has been realized to measure the phase difference of the oscillating electric field at two points inside the cavity. The technique has been applied to a diss…