Results 51 to 60 of about 1,706 (214)
Free-space continuous-variable quantum key distribution under high background noise
npj Quantum InformationOne of the difficulties in the application of quantum communication is the fragility of its encoded quantum states. Conventional quantum key distribution (QKD) requires strict filtering operations at the receiver.
Xue-Tao Zheng +4 more
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IEEE Photonics Journal, 2023 There are several groups have implemented polarization encoding measurement-device-independent quantum key distribution (MDI-QKD). However, these groups use manual polarization controller to achieve the initial polarization state for encoders, and some ...
Yongjie Chen +7 more
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FUTURES &FORESIGHT SCIENCE, Volume 7, Issue 3, December 2025.ABSTRACT Quantum technologies, driven by principles of quantum mechanics like superposition and entanglement, have shown transformative potential in drug discovery, medical diagnosis, precision medicine, and other therapeutic interventions. However, the research on emerging quantum technologies at early to late stages of development for healthcare ...
Oshin Sharma +4 more
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Small, Volume 21, Issue 50, December 17, 2025.This work addresses a fundamental bottleneck in scalable quantum photonics by enabling high‐purity single‐photon extraction from individual NV centers into ultra‐low numerical aperture (NA) optics. As low‐NA optics are essential for compact and fiber‐integrated quantum platforms, the defect‐selective metalens provides a practical and timely pathway ...
Minseok Jeon +9 more
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Numerical finite-key analysis of quantum key distribution
npj Quantum Information, 2020 Quantum key distribution (QKD) allows for secure communications safe against attacks by quantum computers. QKD protocols are performed by sending a sizeable, but finite, number of quantum signals between the distant parties involved. Many QKD experiments,
Darius Bunandar +3 more
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IEEE Access, 2023 Quantum key distribution (QKD) is a technique for distributing symmetric encryption keys securely using quantum physics. The rate of key distribution is low and decreases exponentially with increasing distance.
Omar Shirko, Shavan Askar
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A New Security Proof for Twin-Field Quantum Key Distribution (QKD) [PDF]
, 2023 Walter O. Krawec
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Advanced Optical Integration Processes for Photonic‐Integrated Circuit Packaging
Advanced Materials Technologies, Volume 10, Issue 19, October 7, 2025.Photonic integrated chip packaging is a growing technology that helps make devices faster, more efficient, and more compact by using light instead of electricity. This review highlights recent progress in making these chips work better at different levels, discusses current challenges like heat and alignment, and looks at future possibilities for ...
Keuntae Baek +4 more
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Practical Side-Channel Attack on Free-Space QKD Systems With Misaligned Sources and Countermeasures
IEEE Access, 2022 Practical implementations of quantum key distribution (QKD) protocols can introduce additional degrees of freedom in the quantum states that may render them distinguishable to an eavesdropper.
Pablo Arteaga-Diaz +2 more
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Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network
Advanced Quantum Technologies, Volume 8, Issue 10, October 2025.The article explores securing a dynamic global quantum network using continuous variable QKD, proposing a unified three‐layer network architecture for integrating existing QKD networks. It evaluates secret key rates across various channels and introduces the link capacity as a metric for determining the optimum path for secret key distribution in a ...
Mikhael T. Sayat +4 more
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