Generating $N00N$-states of surface plasmon-polariton pairs with a nanoparticle

Abstract

We consider a generation of two-particle quantum states in the process of spontaneous parametric down-conversion of light by a dielectric nanoparticle with ${\chi }^{(2)}$ response. As a particular example, we study the generation of surface plasmon-polariton pairs with a $\mathrm{GaAs}$ nanoparticle located at the silver-air interface. We show that for certain excitation geometries, $N00N$-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 $N00N$-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 $N00N$-states of surface waves using spontaneous parametric down-conversion in ${\chi }^{(2)}$ nanoparticles.

8 pages, 5 figures

References in corpus (14)

• Photonic quantum technologies
• Resonant Semiconductor Metasurfaces for Generating Complex Quantum States
• General criterion for the entanglement of two indistinguishable particles
• Observation of strongly entangled photon pairs from a nanowire quantum dot
• Spatially entangled photon-pairs from lithium niobate nonlocal metasurfaces
• Entanglement in indistinguishable particle systems
• Dielectric nanoantenna as an efficient and ultracompact demultiplexer for surface waves
• Efficient single-photon pair generation by spontaneous parametric down-conversion in nonlinear plasmonic metasurfaces
• Generating Spatially Entangled Itinerant Photons with Waveguide Quantum Electrodynamics
• Observation of the Modification of Quantum Statistics of Plasmonic Systems
• Nonlinear Nanoresonators for Bell State Generation
• Directional emission of down-converted photons from a dielectric nano-resonator
• Spectral characterization of photon-pair sources via classical sum-frequency generation
• Disorder-Protected Quantum State Transmission through Helical Coupled-Resonator Waveguides

Cited by in corpus (2)

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