Related papers: Fast Quantum Interconnects via Neutral Atom Ensembles

Fast Quantum Interconnects via Neutral Atom Ensembles

URL: http://arxiv.org/abs/2608.05147v1
Date: Wed, 05 Aug 2026 17:59:38 GMT
Title: Fast Quantum Interconnects via Neutral Atom Ensembles
Abstract summary: We describe a scalable quantum interconnect that generates entanglement at rates approaching those compatible with two-qubit gates of current neutral-atom quantum processors.<n>The proposed approach exploits the strong dipole-dipole interactions between atomic Rydberg states to generate entanglement between stationary qubits and propagating photons.
Score: 10.212687160226638
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Distributing entanglement between distant qubits is a crucial element of scalable quantum computing. Here, we describe a scalable quantum interconnect that generates remote entanglement at rates approaching those compatible with two-qubit gates of current neutral-atom quantum processors. The proposed approach exploits the strong dipole-dipole interactions between atomic Rydberg states to generate entanglement between stationary qubits and propagating photons, without the need for an optical cavity. We provide a thorough description of the optimal conditions for the developed entanglement-generation protocol for realistic experimental parameters and demonstrate that entanglement-generation rates $\gtrsim 3\times 10^5$ s$^{-1}$ can be achieved using Rydberg states of ytterbium atoms. Given the inherent scalability and design flexibility of the proposed interconnect, our results suggest a promising approach towards distributed networks based on neutral-atom quantum architectures.

Related papers

Enabling Deterministic Passive Quantum State Transfer with Giant Atoms [30.634025315483466]
Achieving quantum state transfer in passive ways can become a powerful asset for scalable quantum networks.<n>We show that giant atoms coupled to 1D waveguides provide a platform for such a passive, deterministic transfer.<n>Our results establish giant atoms as a powerful platform for realizing high-fidelity quantum state transfer in a setting without time-dependent control.
arXiv Detail & Related papers (2026-05-12T12:06:28Z)
A Universal Quantum Information Preserving Photonic Switch for Scalable Quantum Networks [5.53515119748664]
We propose the Universal Quantum Switch, a building block allowing on-demand, non-blocking, and encoding-agnostic routing of quantum information.<n>We experimentally demonstrate robust switching with $le 4%$ decoherence via thermo-optic modulation and high-speed electro-optic switching of arbitrary entangled states at 1 MHz.<n>To our knowledge, this work represents the first demonstration of multi-node dynamic entanglement distribution at these speeds.
arXiv Detail & Related papers (2026-04-23T17:48:51Z)
Realization of a cavity-coupled Rydberg array [0.0]
We present a novel cavity-coupled Rydberg array that achieves this long-standing goal.<n>We show that strong coupling to an optical cavity can be achieved in our setup at the same spatial location.<n>Our presented platform opens the path to several new directions, including the realization of quantum network nodes.
arXiv Detail & Related papers (2026-02-12T16:34:41Z)
Hybrid digital-analog protocols for simulating quantum multi-body interactions [37.8143463294838]
Quantum simulators promise to explore quantum many-body physics beyond classical computation.<n>Their capabilities are limited by the available native interactions in the hardware.<n>We introduce and experimentally demonstrate a hybrid digital-analog protocol that overcomes these limitations.
arXiv Detail & Related papers (2025-12-24T19:00:36Z)
Cold atomic ensembles as quantum antennas for distributed networks of single-atom arrays [0.0]
Single neutral atoms in optical tweezer arrays offer a promising platform for high-fidelity quantum computing at local nodes.<n>We design a distributed quantum network architecture in which cold atomic ensembles act as quantum antennas.<n>By leveraging the complementary strengths of single-atom qubits for local operations and cold atomic ensembles for networking, this approach paves the way for scalable distributed quantum computing and sensing.
arXiv Detail & Related papers (2025-08-11T19:55:53Z)
High-fidelity entanglement and coherent multi-qubit mapping in an atom array [34.82692226532414]
We show the creation and coherent mapping of entangled quantum states across multiple qubits in Ytterbium-171 tweezer arrays.<n>Results establish a versatile architecture that advances multiple fields of quantum information science while also establishing bridges between them.
arXiv Detail & Related papers (2025-06-16T15:58:53Z)
Phonon-Coupled Hole-Spin Qubits in High-Purity Germanium: Design and Modeling of a Scalable Architecture [0.0]
We present a design and modeling of a scalable quantum processor architecture utilizing hole-spin qubits defined in gate-controlled germanium (Ge) quantum dots.<n>The architecture exploits the strong, electrically tunable spin-orbit interactions intrinsic to hole states in Ge, integrated with high-quality phononic crystal cavities (PnCCs) to enable fully electrical qubit control and phonon-mediated coupling.
arXiv Detail & Related papers (2025-04-16T16:14:30Z)
Quantum Gate Optimization for Rydberg Architectures in the Weak-Coupling Limit [55.05109484230879]
We demonstrate machine learning assisted design of a two-qubit gate in a Rydberg tweezer system. We generate optimal pulse sequences that implement a CNOT gate with high fidelity. We show that local control of single qubit operations is sufficient for performing quantum computation on a large array of atoms.
arXiv Detail & Related papers (2023-06-14T18:24:51Z)
Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems. Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
arXiv Detail & Related papers (2022-06-03T14:52:34Z)
Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z)
A quantum processor based on coherent transport of entangled atom arrays [44.62475518267084]
We show a quantum processor with dynamic, nonlocal connectivity, in which entangled qubits are coherently transported in a highly parallel manner. We use this architecture to realize programmable generation of entangled graph states such as cluster states and a 7-qubit Steane code state.
arXiv Detail & Related papers (2021-12-07T19:00:00Z)
Universal deterministic quantum operations in microwave quantum links [0.0]
We propose a realistic setup, inspired by already existing experiments, within which we develop a general formalism for the implementation of distributed quantum gates. We identify the most relevant imperfections in the quantum links as well as optimal points of operation with resulting infidelities of $1-F approx 10-2-10-3$.
arXiv Detail & Related papers (2021-10-05T14:45:13Z)
Hybrid quantum photonics based on artificial atoms placed inside one hole of a photonic crystal cavity [47.187609203210705]
Hybrid quantum photonics with SiV$-$-containing nanodiamonds inside one hole of a one-dimensional, free-standing, Si$_3$N$_4$-based photonic crystal cavity is presented. The resulting photon flux is increased by more than a factor of 14 as compared to free-space. Results mark an important step to realize quantum network nodes based on hybrid quantum photonics with SiV$-$- center in nanodiamonds.
arXiv Detail & Related papers (2020-12-21T17:22:25Z)

This list is automatically generated from the titles and abstracts of the papers in this site.