Light propagation in systems with anti-Hermitian coupling, described by a spinor-like wave equation, provides a general route for the observation of antiparity-time (PT) symmetry in optics. Remarkably, under a different definition of parity operator, a PT symmetry can be found as well in such systems. Such symmetries are ubiquitous in nonlinear optical interactions and are exemplified by considering modulation instability in optical fibers and optical parametric amplification.
PT symmetry and antisymmetry by anti-Hermitian wave coupling and nonlinear optical interactions
Longhi, S.
2018-01-01
Abstract
Light propagation in systems with anti-Hermitian coupling, described by a spinor-like wave equation, provides a general route for the observation of antiparity-time (PT) symmetry in optics. Remarkably, under a different definition of parity operator, a PT symmetry can be found as well in such systems. Such symmetries are ubiquitous in nonlinear optical interactions and are exemplified by considering modulation instability in optical fibers and optical parametric amplification.File in questo prodotto:
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