Optical non-Hermitian para-Fermi oscillators

Abstract

We present a proposal for the optical simulation of para-Fermi oscillators in arrays of coupled waveguides. We use a representation that arises as a deformation of the $su(2)$ algebra. This provides us with a set of chiral and a zero-energy-like normal modes. The latter is its own chiral pair and suggest the addition of controlled losses/gains following a pattern defined by parity. In these non-Hermitian para-Fermi oscillators, the analog of the zero-energy mode presents the largest effective loss/gain and it is possible to tune the system to show sequences of exceptional points and varying effective losses/gains. These arrays can be used for mode suppression or enhancement depending on the use of loss or gain, in that order. We compare our coupled mode theory predictions with finite element method simulations to good agreement.

12 pages, 4 figures

References in corpus (4)

• Coherent Quantum Transport in Photonic Lattices
• Symmetry-protected zero-mode laser with a tunable spatial profile
• Quantum simulation of driven para-Bose oscillators
• Ermakov-Lewis symmetry in photonic lattices

Cited by in corpus (6)

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• Experimental realization of para-particle oscillators
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• Lasing in para-Fermi class-B microring resonator arrays
• Generalized para-Bose states
• Reconfigurable multiport switch in coupled mode devices