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Observation of a chiral state in a microwave cavity

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Dembowski,  C.
Prof. Hans A. Weidenmüller, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Harney,  H. L.
Prof. Hans A. Weidenmüller, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Citation

Dembowski, C., Dietz, B., Graf, H. D., Harney, H. L., Heine, A., Heiss, W. D., et al. (2003). Observation of a chiral state in a microwave cavity. Physical Review Letters, 90(3): 034101, pp. 034101-034101.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8F71-4
Abstract
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 dissipative resonator which exhibits a singularity-called exceptional point-in its eigenvalue and eigenvector spectrum. At the singularity, two modes coalesce with a phase difference of pi/2. We conclude that the state excited at the singularity has a definitive chirality.