On-demand continuous-variable quantum entanglement source for integrated circuits
arXiv:2205.12741 · doi:10.1515/nanoph-2022-0555
Abstract
Integration of devices generating nonclassical states~(such as entanglement) into photonic circuits is one of the major goals in achieving integrated quantum circuits~(IQCs). This is demonstrated successfully in recent decades. Controlling the nonclassicality generation in these micron-scale devices is also crucial for the robust operation of the IQCs. Here, we propose a micron-scale quantum entanglement device whose nonlinearity (so the generated nonclassicality) can be tuned by several orders of magnitude via an \textit{applied voltage} without altering the linear response. Quantum emitters~(QEs), whose level-spacing can be tuned by voltage, are embedded into the hotspot of a metal nanostructure~(MNS). QE-MNS coupling introduces a Fano resonance in the ``nonlinear response''. Nonlinearity, already enhanced extremely due to localization, can be controlled by the QEs' level-spacing. Nonlinearity can either be suppressed (also when the probe is on the device) or be further enhanced by several orders. Fano resonance takes place in a relatively narrow frequency window so that meV voltage-tunability for QEs becomes sufficient for a \textit{continuous} turning on/off of the nonclassicality. This provides as much as 5 orders of magnitude modulation depths.
arXiv comment8 pages, 3 figures
References in corpus (51)
- The Quantum Internet
- Quantum information with continuous variables
- Quantum computational advantage using photons
- Quantum Plasmonics
- The logarithmic negativity: A full entanglement monotone that is not convex
- Quantum Computational Supremacy
- Image sensor array based on graphene-CMOS integration
- Vacuum Rabi splitting in a plasmonic cavity at the single quantum emitter limit
- Entanglement by a beam splitter: nonclassicality as a prerequisite for entanglement
- Mode-matching in multiresonant plasmonic nanoantennas for enhanced second harmonic generation
- Quantum Internet: Networking Challenges in Distributed Quantum Computing
- Hybrid quantum information processing
- Development of Quantum InterConnects for Next-Generation Information Technologies
- Robust entanglement of a micromechanical resonator with output optical fields
- A computable measure of nonclassicality for light
- When Entanglement meets Classical Communications: Quantum Teleportation for the Quantum Internet (Invited Paper)
- An experimental investigation of criteria for continuous variable entanglement
- BosonSampling with single-photon Fock states from a bright solid-state source
- Programmable Multimode Quantum Networks
- Near-degenerate quadrature-squeezed vacuum generation on a silicon-nitride chip
- Energy-time entanglement preservation in plasmon-assisted light transmission
- Efficient photo-induced second harmonic generation in silicon photonics
- Waveguide-integrated, plasmonic enhanced graphene photodetectors
- High-Speed Electro-Optic Modulator Integrated with Graphene-Boron Nitride Heterostructure and Photonic Crystal Nanocavity
- Broadband quadrature-squeezed vacuum and nonclassical photon number correlations from a nanophotonic device
- Continuous variable entanglement on a chip
- Squeezed light from a nanophotonic molecule
- Entanglement swapping between discrete and continuous variables
- Demonstration of Quadrature Squeezed Surface-Plasmons in a Gold Waveguide
- Quantum Statistics of Surface Plasmon Polaritons in Metallic Stripe Waveguides
- Electrically pumped single-defect light emitters in WSe
- Chip-based squeezing at a telecom wavelength
- A bright triggered twin-photon source in the solid state
- Resonant-State Expansion of the Fano Peak in Open Quantum Systems
- Entanglement swapping of noisy states: A kind of superadditivity in nonclassicality
- Single Photon Source from a Nanoantenna-Trapped Single Quantum Dot
- Conservation relation of nonclassicality and entanglement for Gaussian states in a beam-splitter
- A method for achieving larger enhancement in Four-Wave Mixing via plasmonic path interference effects
- Tunable photon statistics exploiting the Fano effect in a waveguide
- Quantum superposition and entanglement of mesoscopic plasmons
- Electrical control of nonlinear quantum optics in a nano-photonic waveguide
- Engineering nonlinear response of nanomaterials using Fano resonances
- On-demand source of dual-rail photon pairs based on chiral interaction in a nanophotonic waveguide
- Monolithically integrated single quantum dots coupled to bowtie nanoantennas
- Quantum teleportation mediated by surface plasmon polariton
- A quantum emitter coated with graphene interacting in the strong coupling regime
- Controlling steady-state second harmonic signal via linear and nonlinear Fano resonances
- Adaptive control of necklace states in a photonic crystal waveguide
- Quantifications for multi-mode entanglement
- Nonclassicality and entanglement for wavepackets
- Measuring nonclasicality of single-mode systems