Reconfigurable continuously-coupled 3D photonic circuit for Boson Sampling experiments

Abstract

Boson Sampling is a computational paradigm representing one of the most viable and pursued approaches to demonstrate the regime of quantum advantage. Recent results have demonstrated significant technological leaps in single-photon generation and detection, leading to progressively larger experimental instances of Boson Sampling experiments in different photonic systems. However, a crucial requirement for a fully-fledged platform solving this problem is the capability of implementing large-scale interferometers, that must simultaneously exhibit low losses, high degree of reconfigurability and the realization of arbitrary transformations. In this work, we move a step forward in this direction by demonstrating the adoption of a compact and reconfigurable 3D-integrated platform for photonic Boson Sampling. We perform 3- and 4-photon experiments by using such platform, showing the possibility of programming the circuit to implement a large number of unitary transformations. These results show that such compact and highly-reconfigurable layout can be scaled up to experiments with larger number of photons and modes, and can provide a viable direction for hybrid computing with photonic processors.

17 pages, 15 figures

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Cited by in corpus (19)

• 20-Mode Universal Quantum Photonic Processor
• Programmable high-dimensional Hamiltonian in a photonic waveguide array
• High-fidelity and polarization insensitive universal photonic processors fabricated by femtosecond laser writing
• Boson bunching is not maximized by indistinguishable particles
• Two-qubit quantum photonic processor manufactured by femtosecond laser writing
• Toward Higher Integration Density in Femtosecond-Laser-Written Programmable Photonic Circuits
• Characterization of multi-mode linear optical networks
• Quantum logical controlled-NOT gate in a lithium niobate-on-insulator photonic quantum walk
• Programmable quantum circuits in a large-scale photonic waveguide array
• Modular Quantum-to-Quantum Bernoulli Factory in an Integrated Photonic Processor
• Tunable Generation of Spatial Entanglement in Nonlinear Waveguide Arrays
• Certification of Gaussian Boson Sampling via graph theory
• Laser-written reconfigurable photonic integrated circuit directly coupled to a single-photon avalanche diode array
• Large-scale free-space photonic circuits in two dimensions
• Observation of light propagation through a three-dimensional cavity superlattice in a 3D photonic band gap
• A learning theory for quantum photonic processors and beyond
• Finding eigenvectors with a quantum variational algorithm
• Tailoring quantum walks in integrated photonic lattices
• Optical Quantum Computing