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

• URL: http://arxiv.org/abs/2205.09750v5
• Date: Wed, 26 Apr 2023 15:25:56 GMT
• Title: Near-deterministic hybrid generation of arbitrary photonic graph states using a single quantum emitter and linear optics
• Authors: Paul Hilaire, Leonid Vidro, Hagai S. Eisenberg, Sophia E. Economou
• Abstract summary: We introduce near-deterministic solutions for the generation of graph states using the current quantum emitter capabilities. Our results should pave the way towards the practical implementation of resource-efficient quantum information processing.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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