Zobrazeno 1 - 10
of 3 541
pro vyhledávání: '"Ali, G. A."'
We propose a network-model realization of magnetic higher-order topological phases (HOTPs) in the presence of the combined space-time symmetry $C_4\mathcal{T}$ -- the product of a fourfold rotation and time-reversal symmetry. We show that the system
Externí odkaz:
http://arxiv.org/abs/2407.03396
Measurement-induced entanglement phase transitions in monitored quantum circuits have stimulated activity in a diverse research community. However, the study of measurement-induced dynamics, due to the requirement of exponentially complex postselecti
Externí odkaz:
http://arxiv.org/abs/2406.19052
Autor:
Rostami, Habib, Moghaddam, Ali G.
In magnetic topological insulators, the surface states can exhibit a gap due to the breaking of time-reversal symmetry. Various experiments, while suggesting the existence of the surface gap, have raised questions about its underlying mechanism in th
Externí odkaz:
http://arxiv.org/abs/2404.18917
Autor:
Huang, Botsz, Huang, You-Ting, Yang, Jan-Chi, Chen, Tse-Ming, Moghaddam, Ali G., Chang, Ching-Hao
The high-order Hall effects, which go beyond the ordinary, unlock more possibilities of electronic transport properties and functionalities. Pioneer works focus on the manufacture of complex nanostructures with low lattice symmetry to produce them. I
Externí odkaz:
http://arxiv.org/abs/2404.03639
Autor:
Martini, Mickey, Reichlova, Helena, Corredor, Laura T., Kriegner, Dominik, Lee, Yejin, Tomarchio, Luca, Nielsch, Kornelius, Moghaddam, Ali G., Brink, Jeroen van den, Büchner, Bernd, Wurmehl, Sabine, Romaka, Vitaliy, Thomas, Andy
PrRhC2 belongs to the rare-earth carbides family whose properties are of special interest among topological semimetals due to the simultaneous breaking of both inversion and time-reversal symmetry. The concomitant absence of both symmetries grants th
Externí odkaz:
http://arxiv.org/abs/2309.06963
Publikováno v:
Phys. Rev. B 109, 035425(2024)
The dislocation skin effect exhibits the capacity of topological defects to trap an extensive number of modes in two-dimensional non-Hermitian systems. Similar to the corresponding skin effects caused by system boundaries, this phenomenon also origin
Externí odkaz:
http://arxiv.org/abs/2307.14753
Autor:
Sheikh, Ali G., Pellizzari, Casey J., Kisner, Sherman J., Buzzard, Gregery T., Bouman, Charles A.
Directed energy applications require the estimation of digital-holographic (DH) phase errors due to atmospheric turbulence in order to accurately focus the outgoing beam. These phase error estimates must be computed with very low latency to keep pace
Externí odkaz:
http://arxiv.org/abs/2305.03284
Publikováno v:
Phys. Rev. Lett. 131, 020401 (2023)
Recently discovered measurement-induced entanglement phase transitions in monitored quantum circuits provide a novel example of far-from-equilibrium quantum criticality. Here, we propose a highly efficient strategy for experimentally accessing these
Externí odkaz:
http://arxiv.org/abs/2302.14044
Observation of an unexpected negative magnetoresistance in magnetic Weyl semimetal Co$_3$Sn$_2$S$_2$
Autor:
Moghaddam, Ali G., Geishendorf, Kevin, Schlitz, Richard, Facio, Jorge I., Vir, Praveen, Shekhar, Chandra, Felser, Claudia, Nielsch, Kornelius, Goennenwein, Sebastian T. B., Brink, Jeroen van den, Thomas, Andy
Publikováno v:
Mater. Today Phys. 29, 100896 (2022)
Time-reversal symmetry breaking allows for a rich set of magneto-transport properties related to electronic topology. Focusing on the magnetic Weyl semimetal Co$_3$Sn$_2$S$_2$, we prepared micro-ribbons and investigated their transverse and longitudi
Externí odkaz:
http://arxiv.org/abs/2211.09798
Autor:
Könye, Viktor, Mertens, Lotte, Morice, Corentin, Chernyavsky, Dmitry, Moghaddam, Ali G., van Wezel, Jasper, Brink, Jeroen van den
We show that tilted Weyl semimetals with a spatially varying tilt of the Weyl cones provide a platform for studying analogues to problems in anisotropic optics as well as curved spacetime. Considering particular tilting profiles, we numerically evalu
Externí odkaz:
http://arxiv.org/abs/2210.16145