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Year I · No. 113
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Thursday, 10 Sep 2026

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· Quantum Physics · 10 · 09 · 2026

Security Vulnerability Found in Chip-Based Quantum Key Distribution

Researchers have identified a new attack vector in chip-based quantum key distribution (QKD) systems. The vulnerability stems from luminescence induced by variable optical attenuators (VOAs) used to control light intensity. This luminescence can be detected by an eavesdropper, revealing information about the transmitted quantum state and compromising the security of the key.

§ Today’s briefing

5 dispatches · 10 · 09 · 2026
· General

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Monolayer Superconductors Integrated into Circuits

Scientists have successfully integrated single-atomic-layer superconducting materials into functional electronic circuits. This breakthrough represents a significant step towards the miniaturization of quantum devices and next-generation computing. Until now, superconductivity in two-dimensional materials had been primarily studied in isolated environments, but its integration into circuits opens the door to practical applications in low-power electronics and quantum computing.

The research team utilized a transfer technique to deposit molybdenum disulfide (MoS2) monolayers, a semiconductor material that can be induced into superconductivity, onto substrates already containing circuit elements. The key to success lay in maintaining the superconducting properties of MoS2 during the fabrication process, a considerable challenge due to the fragility of these atomic-scale materials. Advanced characterization methods were employed to confirm the preservation of the superconducting phase and its interaction with circuit components.

Scientists have successfully integrated single-atomic-layer superconducting materials into functional electronic circuits.
§ Technical sheet
Source
Nature
Category
Applied Physics
Edition
113
Date
2026-09-10
Reading
1 min
Origin
Source ↗

§ arXiv briefing

— ex praeprintis hodiernis —
  1. 2609.10486 · cuantica

    New RC-QMC Method Reduces Systematic Errors in Quantum Simulations

  2. 2609.10520 · cuantica

    Zero-private-capacity quantum channels enable secure communication

  3. 2609.10383 · cuantica

    Quantifying Information Hierarchy for Neutrino Oscillation Parameters

  4. 2609.10306 · cuantica

    Improved Calculation of Relativistic Three-Body Scattering Amplitudes

  5. 2609.10332 · teoria

    New Family of Generalized Black Holes with Fully Non-Aligned Electromagnetic Fields Developed

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