Surface oxides, carbides, and impurities on RF superconducting Nb and Nb3Sn: A comprehensive analysis

Posted by dbos Cornell

Kavli Affiliate: David A. Muller | First 5 Authors: Zeming Sun, Zhaslan Baraissov, Catherine A. Dukes, Darrah K. Dare, Thomas Oseroff | Summary: Surface structures on radio-frequency (RF) superconductors are crucially important in determining their interaction with the RF field. Here we investigate the surface compositions, structural profiles, and valence distributions of oxides, carbides, and […]


Continue.. Surface oxides, carbides, and impurities on RF superconducting Nb and Nb3Sn: A comprehensive analysis

Emergent U(1) symmetry in non-particle-conserving one-dimensional models

Posted by dbos Delft

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Zakaria Jouini, Natalia Chepiga, Loic Herviou, Frédéric Mila, | Summary: The properties of stable Luttinger liquid phases in models with a non-conserved number of particles are investigated. We study the Luttinger liquid phases in one-dimensional models of hard-core boson and spinless fermion chains where particles can be […]


Continue.. Emergent U(1) symmetry in non-particle-conserving one-dimensional models

Cross-view Action Recognition via Contrastive View-invariant Representation

Posted by klaurent Cornell

Kavli Affiliate: Dan Luo | First 5 Authors: Yuexi Zhang, Dan Luo, Balaji Sundareshan, Octavia Camps, Mario Sznaier | Summary: Cross view action recognition (CVAR) seeks to recognize a human action when observed from a previously unseen viewpoint. This is a challenging problem since the appearance of an action changes significantly with the viewpoint. Applications […]


Continue.. Cross-view Action Recognition via Contrastive View-invariant Representation

Cross-view Action Recognition via Contrastive View-invariant Representation

Posted by klaurent Cornell

Kavli Affiliate: Dan Luo | First 5 Authors: Yuexi Zhang, Dan Luo, Balaji Sundareshan, Octavia Camps, Mario Sznaier | Summary: Cross view action recognition (CVAR) seeks to recognize a human action when observed from a previously unseen viewpoint. This is a challenging problem since the appearance of an action changes significantly with the viewpoint. Applications […]


Continue.. Cross-view Action Recognition via Contrastive View-invariant Representation

Correlated Terahertz phonon-ion interactions dominate ion conduction in solid electrolyte Li0.5La0.5TiO3

Posted by dbos Caltech

Kavli Affiliate: Scott K. Cushing | First 5 Authors: Kim H. Pham, Kiarash Gordiz, Jonathan M. Michelsen, Hanzhe Liu, Daniele Vivona | Summary: Ionic conduction in solids that exceeds 0.01 S/cm is predicted to involve collective phonon-ion interactions in the crystal lattice. Here, we use theory and experiment to measure the contribution of possible collective […]


Continue.. Correlated Terahertz phonon-ion interactions dominate ion conduction in solid electrolyte Li0.5La0.5TiO3

Integer and fractional Chern insulators in twisted bilayer MoTe2

Posted by klaurent Cornell

Kavli Affiliate: Jie Shan | First 5 Authors: Yihang Zeng, Zhengchao Xia, Kaifei Kang, Jiacheng Zhu, Patrick Knüppel | Summary: Chern insulators, which are the lattice analogs of the quantum Hall states, can potentially manifest high-temperature topological orders at zero magnetic field to enable next-generation topological quantum devices. To date, integer Chern insulators have been […]


Continue.. Integer and fractional Chern insulators in twisted bilayer MoTe2

Integer and fractional Chern insulators in twisted bilayer MoTe2

Posted by klaurent Cornell

Kavli Affiliate: Jie Shan | First 5 Authors: Yihang Zeng, Zhengchao Xia, Kaifei Kang, Jiacheng Zhu, Patrick Knüppel | Summary: Chern insulators, which are the lattice analogs of the quantum Hall states, can potentially manifest high-temperature topological orders at zero magnetic field to enable next-generation topological quantum devices. To date, integer Chern insulators have been […]


Continue.. Integer and fractional Chern insulators in twisted bilayer MoTe2

Enhanced sensitivity and tunability of thermomechanical resonance near the buckling bifurcation

Posted by dbos Delft

Kavli Affiliate: Herre S. J. Van Der Zant | First 5 Authors: Hanqing Liu, Gabriele Baglioni, Carla B. Constant, Herre S. J. van der Zant, Peter G. Steeneken | Summary: The high susceptibility of ultrathin two-dimensional (2D) material resonators to force and temperature makes them ideal systems for sensing applications and exploring thermomechanical coupling. Although […]


Continue.. Enhanced sensitivity and tunability of thermomechanical resonance near the buckling bifurcation

High-resolution three-dimensional imaging of topological textures in single-diamond networks

Posted by dbos Cornell

Kavli Affiliate: Ulrich B. Wiesner | First 5 Authors: Dmitry Karpov, Kenza Djeghdi, Mirko Holler, S. Narjes Abdollahi, Karolina Godlewska | Summary: Highly periodic structures are often said to convey the beauty of nature. However, most material properties are strongly influenced by the defects they contain. On the mesoscopic scale, molecular self-assembly exemplifies this interplay; […]


Continue.. High-resolution three-dimensional imaging of topological textures in single-diamond networks

High-resolution three-dimensional imaging of topological textures in single-diamond networks

Posted by dbos Cornell

Kavli Affiliate: Ulrich B. Wiesner | First 5 Authors: Dmitry Karpov, Kenza Djeghdi, Mirko Holler, S. Narjes Abdollahi, Karolina Godlewska | Summary: Highly periodic structures are often said to convey the beauty of nature. However, most material properties are strongly influenced by the defects they contain. On the mesoscopic scale, molecular self-assembly exemplifies this interplay; […]


Continue.. High-resolution three-dimensional imaging of topological textures in single-diamond networks