Fig. 2: The electric field amplitudes and spin texture from simulations.
From: Topological holographic quench dynamics in a synthetic frequency dimension
a, b The normalized electric field amplitudes \(\left| {\psi _{{{\mathrm{A}}}}} \right|\) and \(\left| {\psi _{{{\mathrm{C}}}}} \right|\) versus discrete time collected from the output waveguides. One hundred and sixty data points are collected in one round-trip (\(T_{{{\mathrm{R}}}}\)). c, d The time evolution of normalized spin textures (\(\left\langle {\sigma _z} \right\rangle\) and \(\left\langle {\sigma _y} \right\rangle\)). Right panels are the corresponding zoom-in plots, where data points are connected with lines, showing that \(\left| {\psi _{{{\mathrm{A}}}}} \right|\), \(\left| {\psi _{{{\mathrm{C}}}}} \right|\), \(\left\langle {\sigma _z} \right\rangle\), and \(\left\langle {\sigma _y} \right\rangle\) are evolving continuously along the time dimension
