Spatiospectral separation of exceptional points in PT-symmetric optical potentials

Sunkyu Yu; Xianji Piao; Daniel R. Mason; Sungjun In; Namkyoo Park

doi:10.1103/PhysRevA.86.031802

Spatiospectral separation of exceptional points in PT-symmetric optical potentials

Sunkyu Yu
, Xianji Piao
, Daniel R. Mason
, Sungjun In
, Namkyoo Park

School of Electrical and Computer Engineering

Seoul National University

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Non-Hermitian Hamiltonians satisfying parity-time (PT) symmetry reveal unusual physical phenomena related to exceptional points, where the onset of PT symmetry breaking occurs. Here, by permitting dispersive variations in the PT-symmetric potential along the propagation axis of a wave, we show that it is possible to obtain PT-induced exceptional points of spatiospectral separation. As an example, we demonstrate "rainbow nonreciprocity" using a PT-symmetric chirped optical potential.

Original language	English
Article number	031802
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	86
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.86.031802
State	Published - 11 Sep 2012

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10.1103/PhysRevA.86.031802

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title = "Spatiospectral separation of exceptional points in PT-symmetric optical potentials",

abstract = "Non-Hermitian Hamiltonians satisfying parity-time (PT) symmetry reveal unusual physical phenomena related to exceptional points, where the onset of PT symmetry breaking occurs. Here, by permitting dispersive variations in the PT-symmetric potential along the propagation axis of a wave, we show that it is possible to obtain PT-induced exceptional points of spatiospectral separation. As an example, we demonstrate {"}rainbow nonreciprocity{"} using a PT-symmetric chirped optical potential.",

author = "Sunkyu Yu and Xianji Piao and Mason, \{Daniel R.\} and Sungjun In and Namkyoo Park",

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AU - Yu, Sunkyu

AU - Piao, Xianji

AU - Mason, Daniel R.

AU - In, Sungjun

AU - Park, Namkyoo

PY - 2012/9/11

Y1 - 2012/9/11

N2 - Non-Hermitian Hamiltonians satisfying parity-time (PT) symmetry reveal unusual physical phenomena related to exceptional points, where the onset of PT symmetry breaking occurs. Here, by permitting dispersive variations in the PT-symmetric potential along the propagation axis of a wave, we show that it is possible to obtain PT-induced exceptional points of spatiospectral separation. As an example, we demonstrate "rainbow nonreciprocity" using a PT-symmetric chirped optical potential.

AB - Non-Hermitian Hamiltonians satisfying parity-time (PT) symmetry reveal unusual physical phenomena related to exceptional points, where the onset of PT symmetry breaking occurs. Here, by permitting dispersive variations in the PT-symmetric potential along the propagation axis of a wave, we show that it is possible to obtain PT-induced exceptional points of spatiospectral separation. As an example, we demonstrate "rainbow nonreciprocity" using a PT-symmetric chirped optical potential.

UR - https://www.scopus.com/pages/publications/84866357327

U2 - 10.1103/PhysRevA.86.031802

DO - 10.1103/PhysRevA.86.031802

M3 - Article

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SN - 1050-2947

VL - 86

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 3

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Spatiospectral separation of exceptional points in PT-symmetric optical potentials

Abstract

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