Hierarchical Generation and Design of Tree-Codes for Resource-Efficient Loss-Tolerant Quantum Communications
arXiv:2501.18693 · doi:10.1103/1r46-y9lc
Abstract
We develop protocols for generating loss-tolerant quantum tree-codes; these are designed to safeguard information against qubit losses, with wide applications in quantum communications. Contrary to previous proposals, our method enables top-to-bottom fast encoding and decoding, thereby reducing losses due to the lagging and photon-reordering at the repeater stations. At the hardware level, we show how to achieve this with a single quantum emitter equipped with a static feedback mechanism, which we leverage to engineer entangling gates between a fed-back qubit and multiple emitted qubits in parallel. In addition, analyzing typical patterns within the error-correction decoding graphs, we find optimizations of the structure of tree-codes, which enable improved performance by also reducing the code size; these are based on the introduction of asymmetries in the code, which mimic the intrinsic adaptiveness of the recovery procedure. We show numerically that these improvements together significantly enhance the loss-correction performance. Specifically, focusing on quantum repeater protocols, we show that our fast recovery scheme (decoding-encoding) allows for improved repeater rates with smaller photon numbers per code.
References in corpus (49)
- Quantum cryptography: Public key distribution and coin tossing
- The Security of Practical Quantum Key Distribution
- Photonic quantum technologies
- Interfacing single photons and single quantum dots with photonic nanostructures
- Fundamental Limits of Repeaterless Quantum Communications
- General Benchmarks for Quantum Repeaters
- Cavity-based quantum networks with single atoms and optical photons
- Experimental demonstration of memory-enhanced quantum communication
- All photonic quantum repeaters
- Nanophotonic quantum phase switch with a single atom
- Quantum repeaters: From quantum networks to the quantum internet
- Silicon-Vacancy Spin Qubit in Diamond: A Quantum Memory Exceeding 10 ms with Single-Shot State Readout
- Quantum error-correcting codes associated with graphs
- A Quantum Gate between a Flying Optical Photon and a Single Trapped Atom
- Security in Quantum Cryptography
- A photonic cluster state machine gun
- Photon-mediated interactions between quantum emitters in a diamond nanocavity
- Scalable integrated single-photon source
- Entanglement of Nanophotonic Quantum Memory Nodes in a Telecom Network
- Single-photon nonlinear optics with a quantum dot in a waveguide
- A gated quantum dot far in the strong-coupling regime of cavity-QED at optical frequencies
- Single-photon quantum hardware: towards scalable photonic quantum technology with a quantum advantage
- Loss tolerance in one-way quantum computation via counterfactual error correction
- Photonic tensor networks produced by a single quantum emitter
- One-way quantum repeater based on near-deterministic photon-emitter interfaces
- Optically generated 2-dimensional photonic cluster state from coupled quantum dots
- A multinode quantum network over a metropolitan area
- Time-delayed quantum feedback control
- Continuous entanglement distribution over a transnational 248 km fibre link
- Deterministic generation of all-photonic quantum repeaters from solid-state emitters
- A Quantum Network Node with Crossed Optical Fibre Cavities
- Metropolitan-scale heralded entanglement of solid-state qubits
- Deploying an inter-European quantum network
- Ideal refocusing of an optically active spin qubit under strong hyperfine interactions
- Deterministic generation of large-scale entangled photonic cluster state from interacting solid state emitters
- Dynamical photon-photon interaction mediated by a quantum emitter
- Photon Sorting, Efficient Bell Measurements and a Deterministic CZ Gate using a Passive Two-level Nonlinearity
- Deterministic Generation of Loss-Tolerant Photonic Cluster States with a Single Quantum Emitter
- Fusion of deterministically generated photonic graph states
- Photonic resource state generation from a minimal number of quantum emitters
- Coherence of a dynamically decoupled quantum-dot hole spin
- Realization of a Universal Quantum Gate Set for Itinerant Microwave Photons
- Near-deterministic hybrid generation of arbitrary photonic graph states using a single quantum emitter and linear optics
- Deterministic generation of multidimensional photonic cluster states using time-delay feedback
- Performance analysis of quantum repeaters enabled by deterministically generated photonic graph states
- Deterministic and reconfigurable graph state generation with a single solid-state quantum emitter
- Violation of Bell inequality by photon scattering on a two-level emitter
- Resource-efficient fault-tolerant one-way quantum repeater with code concatenation
- Atom-mediated deterministic generation and stitching of photonic graph states