Generating ${\rm N00N}$-states of surface plasmon-polariton pairs with a nanoparticle
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arXiv
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| Format: | Preprint |
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2020
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| author | Olekhno, Nikita A. Petrov, Mihail I. Iorsh, Ivan V. Sukhorukov, Andrey A. Solntsev, Alexander S. |
| author_facet | Olekhno, Nikita A. Petrov, Mihail I. Iorsh, Ivan V. Sukhorukov, Andrey A. Solntsev, Alexander S. |
| contents | We consider a generation of two-particle quantum states in the process of spontaneous parametric down-conversion of light by a dielectric nanoparticle with $χ^{(2)}$ response. As a particular example, we study the generation of surface plasmon-polariton pairs with a ${\rm GaAs}$ nanoparticle located at the silver-air interface. We show that for certain excitation geometries, ${\rm N00N}$-states of surface plasmon-polariton pairs could be obtained. The effect can be physically interpreted as a result of quantum interference between pairs of induced sources, each emitting either signal or idler plasmon. We then relate the resulting ${\rm N00N}$-pattern to the general symmetry properties of dyadic Green's function of a dipole emitter exciting surface waves. It renders the considered effect as a general way towards a robust generation of ${\rm N00N}$-states of surface waves using spontaneous parametric down-conversion in $χ^{(2)}$ nanoparticles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2002_05268 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Generating ${\rm N00N}$-states of surface plasmon-polariton pairs with a nanoparticle Olekhno, Nikita A. Petrov, Mihail I. Iorsh, Ivan V. Sukhorukov, Andrey A. Solntsev, Alexander S. Optics Mesoscale and Nanoscale Physics Quantum Physics We consider a generation of two-particle quantum states in the process of spontaneous parametric down-conversion of light by a dielectric nanoparticle with $χ^{(2)}$ response. As a particular example, we study the generation of surface plasmon-polariton pairs with a ${\rm GaAs}$ nanoparticle located at the silver-air interface. We show that for certain excitation geometries, ${\rm N00N}$-states of surface plasmon-polariton pairs could be obtained. The effect can be physically interpreted as a result of quantum interference between pairs of induced sources, each emitting either signal or idler plasmon. We then relate the resulting ${\rm N00N}$-pattern to the general symmetry properties of dyadic Green's function of a dipole emitter exciting surface waves. It renders the considered effect as a general way towards a robust generation of ${\rm N00N}$-states of surface waves using spontaneous parametric down-conversion in $χ^{(2)}$ nanoparticles. |
| title | Generating ${\rm N00N}$-states of surface plasmon-polariton pairs with a nanoparticle |
| topic | Optics Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2002.05268 |