▎ 摘　　要

Selection rules and interference effects in angle-resolved photoemission spectra (ARPES) from twisted graphene bilayers are studied within a long-wavelength theory for the electronic structure. Using a generic model for the interlayer coupling, we identify features in the calculated ARPES momentum distributions that are controlled by the singularities and topological character of its long-wavelength spectrum. We distinguish spectral features that are controlled by single-layer singularities in the spectrum, their modification by gauge potentials in each layer generated by the interlayer coupling, and energy-dependent interference effects that directly probe the interlayer coherence. The results demonstrate how the energy- and polarization-dependence of ARPES spectra can be used to characterize the interlayer coupling in twisted bilayer graphenes.