Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Gregory A Fiete"'
Autor:
Kuan-Sen Lin, Giandomenico Palumbo, Zhaopeng Guo, Yoonseok Hwang, Jeremy Blackburn, Daniel P. Shoemaker, Fahad Mahmood, Zhijun Wang, Gregory A. Fiete, Benjamin J. Wieder, Barry Bradlyn
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-17 (2024)
Abstract Symmetry-protected topological crystalline insulators (TCIs) have primarily been characterized by their gapless boundary states. However, in time-reversal- ( $${{{{{{{\mathcal{T}}}}}}}}$$ T -) invariant (helical) 3D TCIs—termed higher-orde
Externí odkaz:
https://doaj.org/article/a76405e0d91d4c41ada160a4c9691ee8
Publikováno v:
New Journal of Physics, Vol 14, Iss 11, p 115029 (2012)
We theoretically studied an exactly solvable gamma matrix generalization of the Kitaev spin model on the ruby lattice, which is a honeycomb lattice with ‘expanded’ vertices and links. We find that this model displays an exceptionally rich phase d
Externí odkaz:
https://doaj.org/article/77cec3d1a79846539c64cc7b569212be
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013048 (2024)
We investigate the dependence of the photogalvanic response of a twofold degenerate multi-Weyl semimetal on its topological charge, tilt, and chemical potential. We derive analytical expressions for the shift and injection conductivities for tilted c
Externí odkaz:
https://doaj.org/article/919c04223755498fb6427a8427b4aaa5
Autor:
David Lujan, Jeongheon Choe, Martin Rodriguez-Vega, Zhipeng Ye, Aritz Leonardo, T. Nathan Nunley, Liang-Juan Chang, Shang-Fan Lee, Jiaqiang Yan, Gregory A. Fiete, Rui He, Xiaoqin Li
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
MnBi2Te4, referred to as MBT, is a van der Waals material combining topological electron bands with magnetic order. Here, Lujan et al study collective spin excitations in MBT, and show that magnetic fluctuations increase as samples reduce in thicknes
Externí odkaz:
https://doaj.org/article/748bcb3b3ac6442ea11a2ad887ebeeba
Autor:
Martin Rodriguez-Vega, Ella Carlander, Adrian Bahri, Ze-Xun Lin, Nikolai A. Sinitsyn, Gregory A. Fiete
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p 013196 (2022)
In this work, we study the real-time evolution of periodically driven (Floquet) systems on a quantum computer using IBM quantum devices. We consider a driven Landau-Zener model and compute the transition probability between the Floquet steady states
Externí odkaz:
https://doaj.org/article/f4c53ef99fa0400f82c4b0e2e18bb6bc
Publikováno v:
APL Materials, Vol 8, Iss 5, Pp 050904-050904-10 (2020)
We highlight recent advances in the theory, materials fabrication, and experimental characterization of strongly correlated and topological states in [111] oriented transition metal oxide thin films and heterostructures, which are notoriously difficu
Externí odkaz:
https://doaj.org/article/18bf4f9a551c470bad61be4b49bf92d3
Publikováno v:
Physics Today. 75:42-47
Illuminating materials with lasers can create intriguing magnetic and topological states of matter..
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab723d920772078eff0d299d2fb08f03
https://doi.org/10.1063/pt.3.5001
https://doi.org/10.1063/pt.3.5001
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043243 (2020)
Operator square roots are ubiquitous in theoretical physics. They appear, for example, in the Holstein-Primakoff representation of spin operators and in the Klein-Gordon equation. Often the use of a perturbative expansion is the only recourse when de
Externí odkaz:
https://doaj.org/article/df450661f3b84ec0917639b21501c0d8
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033494 (2020)
Motivated by the recent experimental realization of twisted double bilayer graphene (TDBG) samples, we study, both analytically and numerically, the effects of circularly polarized light propagating in free space and confined in a waveguide on the ba
Externí odkaz:
https://doaj.org/article/0694bcc5c44c47abb3ee2f7a2c5037d2
Publikováno v:
Physical Review X, Vol 10, Iss 2, p 021029 (2020)
Nonequilibrium phenomena are ubiquitous in nature and in a wide range of systems, including cold atomic gases and solid-state materials. While these phenomena are challenging to describe both theoretically and experimentally, they are essential for t
Externí odkaz:
https://doaj.org/article/5569b3af9caa435dabcbe6f577467722