Tootfinder

Observation of polarization density waves in SrTiO3
Gal Orenstein, Viktor Krapivin, Yijing Huang, Zhuquan Zhan, Gilberto de la Pena Munoz, Ryan A. Duncan, Quynh Nguyen, Jade Stanton, Samuel Teitelbaum, Hasan Yavas, Takahiro Sato, Matthias C. Hoffmann, Patrick Kramer, Jiahao Zhang, Andrea Cavalleri, Riccardo Comin, Mark P. M. Dean, Ankit S. Disa, Michael Forst, Steven L. Johnson, Matteo Mitrano, Andrew M. Rappe, David Reis, Diling Zhu, Keith A. Nelson, Mariano Trigo

Observation of polarization density waves in SrTiO3
The nature of the "failed" ferroelectric transition in SrTiO3 has been a long-standing puzzle in condensed matter physics. A compelling explanation is the competition between ferroelectricity and an instability with a mesoscopic modulation of the polarization. These polarization density waves, which should become especially strong near the quantum critical point, break local inversion symmetry and are difficult to probe with conventional x-ray scattering methods. Here we combine a femtosecond x…

William Caslon? That’s clearly @…!

NFC Championship: Revisiting the beef between the 49ers' Deebo Samuel and the Lions' C.J. Gardner-Johnson

https://www.cbssports.com/nfl/news…

NFC Championship: Revisiting the beef between the 49ers' Deebo Samuel and the Lions' C.J. Gardner-Johnson
The Detroit safety trashed Samuel's route-running ability earlier this year

#SeniorFitness at 68
Let's start Sunday with 82 decline push-ups (29½-cm offset) before brunch. After a 45-minute walk with my wife, I did 16 minutes of primal squatting while reading aloud for breathing regularity from Samuel Johnson's "Rasselas" (1759; this edition, 1942).
75 more declines in set 2. Another 24 with parallettes for full chest-to-floor range-o…

William Caslon? That’s clearly @…!

NFC Championship: Revisiting the beef between the 49ers' Deebo Samuel and the Lions' C.J. Gardner-Johnson

https://www.cbssports.com/nfl/news…

NFC Championship: Revisiting the beef between the 49ers' Deebo Samuel and the Lions' C.J. Gardner-Johnson
The Detroit safety trashed Samuel's route-running ability earlier this year

Ultrafast lattice disordering can be accelerated by electronic collisional forces
Gilberto A. de la Pena Munoz, Alfredo A. Correa, Shan Yang, Olivier Delaire, Yijing Huang, Allan S. Johnson, Tetsuo Katayama, Viktor Krapivin, Ernest Pastor, David A. Reis, Samuel Teitelbaum, Luciana Vidas, Simon Wall, Mariano Trigo
https://arxiv.o…

Ultrafast lattice disordering can be accelerated by electronic collisional forces
In the prevalent picture of ultrafast structural phase transitions, the atomic motion occurs in a slowly varying potential energy surface determined adiabatically by the fast electrons. However, this ignores non-conservative forces caused by electron-lattice collisions, which can significantly influence atomic motion. Most ultrafast techniques only probe the average structure and are less sensitive to random displacements, and therefore do not detect the role played by non-conservative forces i…

Epidemic modelling requires knowledge of the social network
Samuel Johnson
https://arxiv.org/abs/2403.07881 https://arxiv.org/pdf/240…

Epidemic modelling requires knowledge of the social network
Compartmental models of epidemics are widely used to forecast the effects of communicable diseases such as COVID-19 and to guide policy. Although it has long been known that such processes take place on social networks, the assumption of random mixing is usually made, which ignores network structure. However, super-spreading events have been found to be power-law distributed, suggesting that the underlying networks may be scale free or at least highly heterogeneous. The random-mixing assumption…