Fig. 3: Deformation-induced acoustic pseudo-magnetic field (PMF).
From: Observation of chiral Landau levels in a synthetic acoustic Weyl semimetal
a Structural deformation is introduced through modulating the interval distance between two cylinders as characterized by η. b The projected band diagrams of the first band with η = 0 (bottom) and η = 0.4 (top). Right panel shows the zoom-in view of the region near the Brillouin zone (BZ) corner. Blue and red dots represent the positions of the Weyl points (WPs). c Variations of the WPs' positions along kx while tuning the deformation η. Dashed curves indicate the first two bands with the red dots for the WPs. The shift Δk exhibits good linearity with respect to η while the blue line being the fitted line. d Dispersion relations evolve with θ at point W when η = 0.4. e WPs shifted in the synthesized 3D BZ. f Band diagram calculated along the path labeled by the green frame in (e). Dashed lines indicate the positions of the WPs which are shifted from the high-symmetric points.
