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arXiv · 2205.09750

Near-deterministic hybrid generation of arbitrary photonic graph states using a single quantum emitter and linear optics

Paul Hilaire·Leonid Vidro·Hagai S. Eisenberg·Sophia E. Economou
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Abstract

Since linear-optical two-photon gates are inherently probabilistic, measurement-based implementations are particularly well suited for photonic platforms: a large highly-entangled photonic resource state, called a graph state, is consumed through measurements to perform a computation. The challenge is thus to produce these graph states. Several generation procedures, which use either interacting quantum emitters or efficient spin-photon interface, have been proposed to create these photonic graph states deterministically. Yet, these solutions are still out of reach experimentally since the state-of-the-art is the generation of a linear graph state. Here, we introduce near-deterministic solutions for the generation of graph states using the current quantum emitter capabilities. We propose hybridizing quantum-emitter-based graph state generation with all-photonic fusion gates to produce graph states of complex topology near-deterministically. Our results should pave the way towards the practical implementation of resource-efficient quantum information processing, including measurement-based quantum communication and quantum computing.

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Paul Hilaire, Leonid Vidro, Hagai S. Eisenberg, Sophia E. Economou. 2022-05-19. Near-deterministic hybrid generation of arbitrary photonic graph states using a single quantum emitter and linear optics. https://doi.org/10.22331/q-2023-04-27-992

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