Observation of PT-Symmetry Breaking in Complex Optical Potentials
Abbreviated Journal Title
Phys. Rev. Lett.
NON-HERMITIAN HAMILTONIANS; REAL; EIGENVALUES; CAVITY; LIGHT; Physics, Multidisciplinary
In 1998, Bender and Boettcher found that a wide class of Hamiltonians, even though non-Hermitian, can still exhibit entirely real spectra provided that they obey parity-time requirements or PT symmetry. Here we demonstrate experimentally passive PT-symmetry breaking within the realm of optics. This phase transition leads to a loss induced optical transparency in specially designed pseudo-Hermitian guiding potentials.
Physical Review Letters
"Observation of PT-Symmetry Breaking in Complex Optical Potentials" (2009). Faculty Bibliography 2000s. 1600.