Zobrazeno 1 - 10
of 204
pro vyhledávání: '"Ogitsu, Tadashi"'
Autor:
Rajpurohit, Sangeeta, Karaalp, Revsen, Ping, Yuan, Tan, Liang Z., Ogitsu, Tadashi, Blöchl, Peter E.
Manipulating and controlling the band structure and the spin-splitting in the newly discovered class of magnetic materials known as 'altermagnets' is highly desirable for their application in spintronics. Based on real-time simulations for an interac
Externí odkaz:
http://arxiv.org/abs/2409.17718
First principles real-time time dependent density functional theory (rt-TDDFT) calculations reveal the existence of ballistic photocurrents generated by Coulomb scattering, a form of photocurrent that has not previously been considered as a mechanism
Externí odkaz:
http://arxiv.org/abs/2408.06320
Autor:
Rajpurohit, Sangeeta, Jooss, Christian, Techert, Simone, Ogitsu, Tadashi, Blöchl, P. E., Tan, L. Z.
We study the generation of collective orbital modes, their evolution, and the characteristic nonlinear optical response induced by them in a photoinduced orbital-ordered correlated oxide using real-time simulations based on an interacting multiband t
Externí odkaz:
http://arxiv.org/abs/2306.09107
We investigate the effect of local electron-phonon coupling on nonlinear optical conductivity in an interacting ferroelectric system. Using real-time simulations, we show an enhancement in nonlinear conductivity under linearly-polarized light due to
Externí odkaz:
http://arxiv.org/abs/2208.09545
INQ, a modern GPU-accelerated computational framework for (time-dependent) density functional theory
Autor:
Andrade, Xavier, Pemmaraju, Chaitanya Das, Kartsev, Alexey, Xiao, Jun, Lindenberg, Aaron, Rajpurohit, Sangeeta, Tan, Liang Z., Ogitsu, Tadashi, Correa, Alfredo A.
We present INQ, a new implementation of density functional theory (DFT) and time-dependent DFT (TDDFT) written from scratch to work on graphical processing units (GPUs). Besides GPU support, INQ makes use of modern code design features and takes adva
Externí odkaz:
http://arxiv.org/abs/2106.03872
Solid systems with strong correlations and interactions under light illumination have the potential for exhibiting interesting bulk photovoltaic behavior in the non-perturbative regime, which has remained largely unexplored in the past theoretical st
Externí odkaz:
http://arxiv.org/abs/2105.11310
Publikováno v:
Phys. Rev. Materials 5, 053605 (2021)
The complex crystal chemistry of elemental boron has led to numerous proposed structures with distinctive motifs as well as contradictory findings. Herein, evolutionary structure searches performed at 100 GPa have uncovered a series of potential new
Externí odkaz:
http://arxiv.org/abs/2101.00309
Publikováno v:
In Journal of Solid State Chemistry January 2024 329
Autor:
Zhang, Shuai, Marshall, Michelle C., Yang, Lin H., Sterne, Philip A., Militzer, Burkhard, Daene, Markus, Gaffney, James A., Shamp, Andrew, Ogitsu, Tadashi, Caspersen, Kyle, Lazicki, Amy E., Erskine, David, London, Richard A., Celliers, Peter M., Nilsen, Joseph, Whitley, Heather D.
Publikováno v:
Phys. Rev. E 102, 053203 (2020)
Boron carbide (B$_4$C) is of both fundamental scientific and practical interest in inertial confinement fusion (ICF) and high energy density physics experiments. We report the results of a comprehensive computational study of the equation of state (E
Externí odkaz:
http://arxiv.org/abs/2008.01271
Autor:
Whitley, Heather D., Kemp, G. Elijah, Yeamans, Charles, Walters, Zachary, Blue, Brent E., Garbett, Warren, Schneider, Marilyn, Craxton, R. Stephen, Garcia, Emma M., McKenty, Patrick W., Gatu-Johnson, Maria, Caspersen, Kyle, Castor, John I., Däne, Markus, Ellison, C. Leland, Gaffney, James, Graziani, Frank R., Klepeis, John, Kostinski, Natalie, Kritcher, Andrea, Lahmann, Brandon, Lazicki, Amy E., Le, Hai P., London, Richard A., Maddox, Brian, Marshall, Michelle, Martin, Madison E., Militzer, Burkhard, Nikroo, Abbas, Nilsen, Joseph, Ogitsu, Tadashi, Pask, John, Pino, Jesse E., Rubery, Michael, Shepherd, Ronnie, Sterne, Philip A., Swift, Damian C., Yang, Lin, Zhang, Shuai
We examine the performance of pure boron, boron carbide, high density carbon, and boron nitride ablators in the polar direct drive exploding pusher (PDXP) platform. The platform uses the polar direct drive configuration at the National Ignition Facil
Externí odkaz:
http://arxiv.org/abs/2006.15635