Jiongning Che

Oct 11, 2023 | link.aps.org | Xiaodong Zhang |Weihua Zhang |Jiongning Che |Barbara Dietz

Figure 4Two-point correlation functions of the S-matrix elements for a≠b in the frequency ranges indicated in the panels. Shown are the results for the cavity SB1 (black) and SB2 (red), the exact analytical results deduced from Eq. (1) with Ĥ replaced by Ĥ1→2(ξ) (turquoise), and the results obtained from Monte Carlo simulations for the S matrix, given by Eq. (1), with Ĥ replaced by Ĥ0→2(λ) (orange).

Apr 27, 2023 | link.aps.org | Weihua Zhang |Xiaodong Zhang |Jiongning Che |Maksym Miski-Oglu

Abstract We report on experimental studies that were performed with a microwave Dirac billiard (DB), that is, a flat resonator containing metallic cylinders arranged on a triangular grid, whose shape has a threefold rotational (C3) symmetry. Its band structure exhibits two Dirac points (DPs) that are separated by a nearly flat band.