Deterministic generation of all-photonic quantum repeaters from solid-state emitters

By Donovan Buterakos, Edwin Barnes, Sophia E. Economou. 2016

144 citations recorded by the source corpus.

Quantum repeaters are nodes in a quantum communication network that allow reliable transmission of entanglement over large distances. It was recently shown that highly entangled photons in so-called graph states can be used for all-photonic quantum repeaters, which require substantially fewer resources compared to atomic-memory based repeaters. However, standard approaches to building multi-photon entangled states through pairwise probabilistic entanglement generation severely limit the size of the state that can be created. Here, we present a protocol for the deterministic generation of large photonic repeater states using quantum emitters such as semiconductor quantum dots and defect centers in solids. We show that arbitrarily large repeater states can be generated using only two coupled emitters, reducing the necessary number of photon sources by six orders of magnitude. Our protocol includes a built-in redundancy which makes it resilient to photon loss.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/b19eec2a9bee9883451147567c4ab77fa211314c

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Integrated Quantum Photonics with Silicon Carbide: Challenges and Prospects (2020, background): “[16] Donovan Buterakos, Edwin Barnes, and Sophia E.”
One-Way Quantum Repeater Based on Near-Deterministic Photon-Emitter Interfaces (2019, methodology): “Recent work [21] showed that sequential excitation of the quantum emitter, together with controlled-phase gates between the emitter and the memory spins, allows us to deterministically generate an arbitrary photonic tree-cluster state.”
Quantum-dot based photonic quantum networks (2017, background): “Another exciting potential applications of photonic cluster states would be in quantum repeater protocols without the necessity of amatter-based quantummemory [74, 75].”