Quantum mechanical modeling of the multi-stage Stern$unicode{x2013}$Gerlach experiment conducted by Frisch and Segrè

Posted by dbos Caltech

Kavli Affiliate: Lihong V. Wang | First 5 Authors: S. Süleyman Kahraman, Kelvin Titimbo, Zhe He, Jung-Tsung Shen, Lihong V. Wang | Summary: The multi-stage Stern$unicode{x2013}$Gerlach experiment conducted by Frisch and Segr`e includes two cascaded quantum measurements with a nonadiabatic flipper in between. The Frisch and Segr`e experiment has been modeled analytically by Majorana without […]


Continue.. Quantum mechanical modeling of the multi-stage Stern$unicode{x2013}$Gerlach experiment conducted by Frisch and Segrè

Quantum mechanical modeling of the multi-stage Stern$unicode{x2013}$Gerlach experiment conducted by Frisch and Segrè

Posted by dbos Caltech

Kavli Affiliate: Lihong V. Wang | First 5 Authors: S. Süleyman Kahraman, Kelvin Titimbo, Zhe He, Jung-Tsung Shen, Lihong V. Wang | Summary: The multi-stage Stern$unicode{x2013}$Gerlach experiment conducted by Frisch and Segr`e includes two cascaded quantum measurements with a nonadiabatic flipper in between. The Frisch and Segr`e experiment has been modeled analytically by Majorana without […]


Continue.. Quantum mechanical modeling of the multi-stage Stern$unicode{x2013}$Gerlach experiment conducted by Frisch and Segrè

Roadmap on spatiotemporal light fields

Posted by dbos Cornell

Kavli Affiliate: Frank W. Wise | First 5 Authors: Yijie Shen, Qiwen Zhan, Logan G. Wright, Demetrios N. Christodoulides, Frank W. Wise | Summary: Spatiotemporal sculpturing of light pulse with ultimately sophisticated structures represents the holy grail of the human everlasting pursue of ultrafast information transmission and processing as well as ultra-intense energy concentration and […]


Continue.. Roadmap on spatiotemporal light fields

Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets

Posted by klaurent Cornell

Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Lijun Zhu, Daniel C Ralph, , , | Summary: Spin-orbit torques (SOTs) have been widely understood as an interfacial transfer of spin that is independent of the bulk properties of the magnetic layer. Here, we report that SOTs acting on ferrimagnetic FexTb1-x layers decrease and vanish […]


Continue.. Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets

Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale

Posted by klaurent Berkeley

Kavli Affiliate: Alex Zettl | First 5 Authors: Joel Martis, Sandhya Susarla, Archith Rayabharam, Cong Su, Timothy Paule | Summary: Four-dimensional scanning transmission electron microscopy (4D-STEM) has recently gained widespread attention for its ability to image atomic electric fields with sub-{AA}ngstrom spatial resolution. These electric field maps represent the integrated effect of the nucleus, core […]


Continue.. Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale

Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale

Posted by klaurent Berkeley

Kavli Affiliate: Alex Zettl | First 5 Authors: Joel Martis, Sandhya Susarla, Archith Rayabharam, Cong Su, Timothy Paule | Summary: Four-dimensional scanning transmission electron microscopy (4D-STEM) has recently gained widespread attention for its ability to image atomic electric fields with sub-{AA}ngstrom spatial resolution. These electric field maps represent the integrated effect of the nucleus, core […]


Continue.. Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale

A minimal model of solitons in nematic liquid crystals

Posted by klaurent Cornell

Kavli Affiliate: Nicholas L. Abbott | First 5 Authors: Noe Atzin, Ali Mozaffari, Xingzhou Tang, Soumik Das, Nicholas L. Abbott | Summary: Solitons in liquid crystals have generated considerable interest. Several hypotheses of varying complexity have been advanced to explain how they emerge, and a consensus has not emerged yet about the underlying forces responsible […]


Continue.. A minimal model of solitons in nematic liquid crystals

A minimal model of solitons in nematic liquid crystals

Posted by klaurent Cornell

Kavli Affiliate: Nicholas L. Abbott | First 5 Authors: Noe Atzin, Ali Mozaffari, Xingzhou Tang, Soumik Das, Nicholas L. Abbott | Summary: Solitons in liquid crystals have generated considerable interest. Several hypotheses of varying complexity have been advanced to explain how they emerge, and a consensus has not emerged yet about the underlying forces responsible […]


Continue.. A minimal model of solitons in nematic liquid crystals

HP-GMN: Graph Memory Networks for Heterophilous Graphs

Posted by klaurent Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Junjie Xu, Enyan Dai, Xiang Zhang, Suhang Wang, | Summary: Graph neural networks (GNNs) have achieved great success in various graph problems. However, most GNNs are Message Passing Neural Networks (MPNNs) based on the homophily assumption, where nodes with the same label are connected in graphs. Real-world […]


Continue.. HP-GMN: Graph Memory Networks for Heterophilous Graphs

Periodic Artifact Reduction in Fourier transforms of Full Field Atomic Resolution Images

Posted by klaurent Cornell

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Robert Hovden, Yi Jiang, Huolin L. Xin, Lena F. Kourkoutis, | Summary: The discrete Fourier transform is among the most routine tools used in high-resolution scanning / transmission electron microscopy (S/TEM). However, when calculating a Fourier transform, periodic boundary conditions are imposed and sharp discontinuities between […]


Continue.. Periodic Artifact Reduction in Fourier transforms of Full Field Atomic Resolution Images