An ultra-thin optical polarizer based on weyl semimetals

Hong, Sen; Zhang, Ruihong; Yin, Chengping; Xu, Kunyuan

doi:10.1016/j.physleta.2024.129528

Cited by 1 publication

(1 citation statement)

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“…These discoveries have offerred the opportunity to design and develop novel devices based on Weyl fermions instead of electrons, leading to a new branch of electronics, Weyltronics [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. It should also be noted that, recently, thin films of Weyl semimetals have also been realized [ 4 ], facilitating further the development of Weyltronic devices in photonics [ 11 , 12 , 13 , 14 , 15 , 16 , 17 ], spintronics [ 18 , 19 , 20 , 21 , 22 ], and other applications [ 23 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

A Proposed Device for Controlling the Flow of Information Based on Weyl Fermions

Tsigaridas,

Kechriniotis,

Tsonos

et al. 2024

Sensors

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In this work we propose a novel device for controlling the flow of information using Weyl fermions. Based on a previous work by our group, we show that it is possible to fully control the flow of Weyl fermions on several different channels by applying an electric field perpendicular to the direction of motion of the particles on each channel. In this way, we can transmit information as logical bits, depending on the existence or not of a Weyl current on each channel. We also show that the response time of this device is exceptionally low, less than 1 ps, for typical values of its parameters, allowing for the control of the flow of information at extremely high rates of the order of 100 Petabits per second. Alternatively, this device could also operate as an electric field sensor. In addition, we demonstrate that Weyl fermions can be efficiently guided through the proposed device using appropriate magnetic fields. Finally, we discuss some particularly interesting remarks regarding the electromagnetic interactions of high-energy particles.

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