Is an effort to clearly present the physical aspects of PT-symmetry in optical Proposals on PT symmetry, and initiate new possibilities for shaping opticalīeams and pulses beyond conservative structures. With gain and loss provide a powerful platform for testing various theoretical Help to accelerate the research in the area. Optical microcavity systems, we also wish to present some new results that may Here, although we concentrate upon reviewing recent progress on PT symmetry in Where a judicious balance of gain and loss constitutes a PT-symmetric system. Nevertheless, the notion of PT symmetry has highly survived in many otherīranches of physics including optics, photonics, AMO physics, acoustics,Įlectronic circuits, material science over the past ten years, and others, Quantum mechanics, an experimental observation of pseudo-Hermiticity remainsĮlusive as these systems with a complex potential seem absent in Nature. Including non-Hermitian but PT-symmetric operators in the last two decades.ĭespite much fundamental theoretical success in the development of PT-symmetric Such a counterintuitive discovery has arousedĮxtensive theoretical interest in extending canonical quantum theory by Counterintuitively, a non-Hermitian Hamiltonian, satisfyingĬombined parity-time (PT) symmetry, could display entirely real spectra above Download a PDF of the paper titled Parity-time symmetry in optical microcavity systems, by Jianming Wen and 3 other authors Download PDF Abstract: Canonical quantum mechanics postulates Hermitian Hamiltonians to ensure realĮigenvalues.
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