Nanoscience – Page 92 – Kavli Institute Pre-Print Publications

Controllable suppression of the unconventional superconductivity in bulk and thin-film Sr$_{2}$RuO$_{4}$ via high-energy electron irradiation

Posted by dbos February 29, 2024March 11, 2024Cornell

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Jacob P. Ruf, Hilary M. L. Noad, Romain Grasset, Ludi Miao, Elina Zhakina | Summary: In bulk Sr$_{2}$RuO$_{4}$, the strong sensitivity of the superconducting transition temperature $T_{text{c}}$ to nonmagnetic impurities provides robust evidence for a superconducting order parameter that changes sign around the Fermi surface. In […]

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Signatures of Majorana protection in a three-site Kitaev chain

Posted by dbos February 29, 2024March 11, 2024Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: Alberto Bordin, Chun-Xiao Liu, Tom Dvir, Francesco Zatelli, Sebastiaan L. D. ten Haaf | Summary: Majorana zero modes (MZMs) are non-Abelian excitations predicted to emerge at the edges of topological superconductors. One proposal for realizing a topological superconductor in one dimension involves a chain of spinless fermions, […]

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Operating semiconductor quantum processors with hopping spins

Posted by dbos February 28, 2024Delft

Kavli Affiliate: Menno Veldhorst | First 5 Authors: Chien-An Wang, Valentin John, Hanifa Tidjani, Cécile X. Yu, Alexander Ivlev | Summary: Qubits that can be efficiently controlled are pivotal in the development of scalable quantum hardware. Resonant control is commonly embraced to execute high-fidelity quantum gates but demands integration of high-frequency oscillating signals and results […]

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Operating semiconductor quantum processors with hopping spins

Posted by dbos February 28, 2024Delft

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Operating semiconductor quantum processors with hopping spins

Posted by dbos February 28, 2024Delft

Kavli Affiliate: Menno Veldhorst | First 5 Authors: Chien-An Wang, Valentin John, Hanifa Tidjani, Cécile X. Yu, Alexander S. Ivlev | Summary: Qubits that can be efficiently controlled are essential for the development of scalable quantum hardware. While resonant control is used to execute high-fidelity quantum gates, the scalability is challenged by the integration of […]

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Phononic Crystals in Superfluid Thin-Film Helium

Posted by dbos February 28, 2024March 11, 2024Delft

Kavli Affiliate: Simon Groblacher | First 5 Authors: Alexander Rolf Korsch, Niccolò Fiaschi, Simon Gröblacher, , | Summary: In recent years, nanomechanical oscillators in thin films of superfluid helium have attracted attention in the field of optomechanics due to their exceptionally low mechanical dissipation and optical scattering. Mechanical excitations in superfluid thin films – so-called […]

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Model X-ray:Detect Backdoored Models via Decision Boundary

Posted by dbos February 27, 2024March 11, 2024Berkeley

Kavli Affiliate: Ting Xu | First 5 Authors: Yanghao Su, Jie Zhang, Ting Xu, Tianwei Zhang, Weiming Zhang | Summary: Deep neural networks (DNNs) have revolutionized various industries, leading to the rise of Machine Learning as a Service (MLaaS). In this paradigm, well-trained models are typically deployed through APIs. However, DNNs are susceptible to backdoor […]

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Model X-ray:Detecting Backdoored Models via Decision Boundary

Posted by dbos February 27, 2024Berkeley

Kavli Affiliate: Ting Xu | First 5 Authors: Yanghao Su, Jie Zhang, Ting Xu, Tianwei Zhang, Weiming Zhang | Summary: Backdoor attacks pose a significant security vulnerability for deep neural networks (DNNs), enabling them to operate normally on clean inputs but manipulate predictions when specific trigger patterns occur. Currently, post-training backdoor detection approaches often operate […]

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Mechanics and wrinkling patterns of pressurized bent tubes

Posted by dbos February 26, 2024March 11, 2024Harvard

Kavli Affiliate: Ariel Amir | First 5 Authors: Cesar L. Pastrana, Luyi Qiu, John W. Hutchinson, Ariel Amir, Ulrich Gerland | Summary: Take a drinking straw and bend it from its ends. After sufficient bending, the tube buckles forming a kink, where the curvature is localized in a very small area. This instability, known generally […]

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Mechanics and wrinkling patterns of pressurized bent tubes

Posted by dbos February 26, 2024Harvard

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