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Open access Aug 2026

Near-maximal Bell inequality violation of time–frequency entangled photon pairs from a warm atomic vapor

The realization of high-quality and stable entangled states is crucial for the advancement of quantum information science and technology. The entangled photons generated from a warm atomic ensemble exhibit high spectral purity and indistinguishability, offering significant potential for atom–photon-based quantum networ...

Youngwoong Choi, Jinhyuk Bae, H. Moon · 0 citations
Preprint Sep 2026

Polariton Bell Node for Quantum Repeaters

We propose a Bell-measurement node for quantum repeaters based on a planar semiconductor microcavity operating in the strong-coupling regime. Cavity photons hybridize with quantum-well excitons to form polaritons combining properties of photons and matter quasiparticles. A control photon loaded into one polariton mode...

Jun-Hui Cao, Alexey Kavokin · 0 citations
Preprint Aug 2026

Programmable cavity QED with a fiber-integrated atomic array

Strong atom-photon interactions in optical cavities are a key resource for quantum information processing, quantum networking, and the exploration of quantum optical effects. Optical tweezer arrays offer scalable, site-resolved control of neutral atoms, but their integration with high-cooperativity cavity QED systems r...

S. Roschinski, Johannes Schabbauer, Franz von Silva-Tarouca et al. · 3 citations
Preprint Sep 2026

A thermal microwave bus for neutral atom quantum computing

High-fidelity two-qubit gates in neutral-atom arrays rely on the Rydberg blockade, which is intrinsically short ranged and requires long range connectivity to be achieved through atom shuttling. We propose a four level architecture, where the typical ground state qubit can be leveraged for its long lifetime and the Ryd...

Matthew J. H. Kendall, Christopher J. E. Watson, Michael Ben Shem et al. · 0 citations
Preprint Sep 2026

Spin-to-polarization mapping with a coherent quantum dot-cavity receiver

Coherent light-matter interfaces controllably modifying the state of a photon upon interaction with a stationary qubit are a key resource for implementing deterministic entangling gates for optical quantum technologies. This requires a one-to-one mapping between the state of the scattered photon and that of the embedde...

Adrià Medeiros, V. Vinel, Eliott Rambeau et al. · 0 citations
Aug 2026

Entangled Telecom Photons Generation Using Twisted van der Waals Crystals.

Nanoscale quantum light sources are essential building blocks for integrated quantum photonic systems. Here, we report a wavelength-scale entangled-photon source based on van der Waals-engineered NbOBr2 and benchmark its performance for telecom-wavelength quantum light generation. By exploiting the material's second-or...

Nidhin Prasannan, K. Mourzidis, V. Jindal et al. · 0 citations

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