Electrostatic control of valley-dependent phase in tilted Dirac/Weyl channels

Can Yesilyurt

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arXiv · 2603.11635

Electrostatic control of valley-dependent phase in tilted Dirac/Weyl channels

Can Yesilyurt

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Abstract

Valley degrees of freedom represent a promising resource for solid-state quantum information. This work demonstrates electrostatic control of the valley-dependent phase in tilted Dirac/Weyl semimetals. When wave packets traverse a shaped electrostatic barrier, the valley-dependent tilt induces differential spatial drift and dwell times, resulting in the accumulation of a continuously tunable relative dynamical phase. The barrier thereby functions as a valley-phase shift element. Time-dependent transport simulations employing a coupled two-valley model yield electrically tunable relative phases between equal-energy valleys, including $\pi/4$, $\pi/2$, and $\pi$, with high transmission probabilities.

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Can Yesilyurt. 2026-03-12. Electrostatic control of valley-dependent phase in tilted Dirac/Weyl channels. https://arxiv.org/abs/2603.11635

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