Designing spin and orbital sources of Berry curvature at oxide interfaces

Kavli Affiliate: Gary A. Steele | First 5 Authors: Edouard Lesne, Yildiz G. Saǧlam, Raffaele Battilomo, Maria Teresa Mercaldo, Thierry C. van Thiel | Summary: Quantum materials can display physical phenomena rooted in the geometry of electronic wavefunctions. The corresponding geometric tensor is characterized by an emergent field known as Berry curvature (BC). Large BCs […]


Continue.. Designing spin and orbital sources of Berry curvature at oxide interfaces

Designing Berry curvature dipoles and the quantum nonlinear Hall effect at oxide interfaces

Kavli Affiliate: Gary A. Steele | First 5 Authors: Edouard Lesne, Yildiz G. Saǧlam, Raffaele Battilomo, Thierry C. van Thiel, Ulderico Filippozzi | Summary: Quantum materials can display physical phenomena rooted in the geometric properties of their electronic wavefunctions, and governed by an emergent magnetic field known as Berry curvature. In materials with acentric crystalline […]


Continue.. Designing Berry curvature dipoles and the quantum nonlinear Hall effect at oxide interfaces

On the on-shell equivalence of general relativity and Holst theories with nonmetricity, torsion, and boundaries

Kavli Affiliate: J. S. Villasenor | First 5 Authors: J. Fernando Barbero G., Juan Margalef-Bentabol, Valle Varo, Eduardo J. S. Villaseñor, | Summary: We study a generalization of the Holst action where we admit nonmetricity and torsion in manifolds with timelike boundaries (both in the metric and tetrad formalism). We prove that its space of […]


Continue.. On the on-shell equivalence of general relativity and Holst theories with nonmetricity, torsion, and boundaries

Modular representation and control of floppy networks

Kavli Affiliate: L. Mahadevan | First 5 Authors: Siheng Chen, Fabio Giardina, Gary P. T. Choi, L. Mahadevan, | Summary: Geometric graph models of systems as diverse as proteins, robots, and mechanical structures from DNA assemblies to architected materials point towards a unified way to represent and control them in space and time. While much […]


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High-field transport and hot electron noise in GaAs from first principles: role of two-phonon scattering

Kavli Affiliate: Austin J. Minnich | First 5 Authors: Peishi S. Cheng, Shi-Ning Sun, Alexander Y. Choi, Austin J. Minnich, | Summary: High-field charge transport in semiconductors is of fundamental interest and practical importance. While the ab initio treatment of low-field transport is well-developed, the treatment of high-field transport is much less so, particularly for […]


Continue.. High-field transport and hot electron noise in GaAs from first principles: role of two-phonon scattering

Monitoring inner regions in the RY Tau jet

Kavli Affiliate: Moritz Guenther | First 5 Authors: Taichi Uyama, Michihiro Takami, Gabriele Cugno, Vincent Deo, Olivier Guyon | Summary: We present multi-epoch observations of the RY~Tau jet for H$alpha$ and [ion{Fe}{2}] 1.644 micron~emission lines obtained with Subaru/SCExAO+VAMPIRES, Gemini/NIFS, and Keck/OSIRIS in 2019–2021. These data show a series of four knots within 1$arcsec$ consistent with […]


Continue.. Monitoring inner regions in the RY Tau jet

Monitoring inner regions in the RY Tau jet

Kavli Affiliate: Moritz Guenther | First 5 Authors: Taichi Uyama, Michihiro Takami, Gabriele Cugno, Vincent Deo, Olivier Guyon | Summary: We present multi-epoch observations of the RY~Tau jet for H$alpha$ and [ion{Fe}{2}] 1.644 micron~emission lines obtained with Subaru/SCExAO+VAMPIRES, Gemini/NIFS, and Keck/OSIRIS in 2019–2021. These data show a series of four knots within 1$arcsec$ consistent with […]


Continue.. Monitoring inner regions in the RY Tau jet