Research paperTheoreticalTunneling spectroscopy of two-dimensional superconductors with the quantum twisting microscopeNemin Wei, Felix von Oppen, Leonid I. Glazman2025·10.1103/qsx1-7zmy·arXiv:2509.22902AbstractWe develop a theory that facilitates the use of the quantum twisting microscope (QTM) for probing momentum-conserving tunneling across a planar junction formed by a normal monolayer graphene tip and a superconducting graphene sample. The bias dependence of the zero-temperature tunneling conductance exhibits singularities that provide momentum-resolved information about the Bogoliubov quasiparticle spectra, including the superconducting gap. Using a model of superconducting twisted bilayer graphene, we show that tuning the tip doping level and tip-sample twist angle can enable measurement of the momentum-resolved superconducting gap in twisted bilayer graphene. The results suggest that QTM tunneling spectroscopy is a promising method for exploring superconductivity in two-dimensional van der Waals materials.Read more
Research paperTheoreticalTunneling spectroscopy of two-dimensional superconductors with the quantum twisting microscopeNemin Wei, Felix von Oppen, Leonid I. Glazman2025·10.1103/qsx1-7zmy·arXiv:2509.22902AbstractWe develop a theory that facilitates the use of the quantum twisting microscope (QTM) for probing momentum-conserving tunneling across a planar junction formed by a normal monolayer graphene tip and a superconducting graphene sample. The bias dependence of the zero-temperature tunneling conductance exhibits singularities that provide momentum-resolved information about the Bogoliubov quasiparticle spectra, including the superconducting gap. Using a model of superconducting twisted bilayer graphene, we show that tuning the tip doping level and tip-sample twist angle can enable measurement of the momentum-resolved superconducting gap in twisted bilayer graphene. The results suggest that QTM tunneling spectroscopy is a promising method for exploring superconductivity in two-dimensional van der Waals materials.Read more
Research paperTheoreticalTunneling spectroscopy of two-dimensional superconductors with the quantum twisting microscopeNemin Wei, Felix von Oppen, Leonid I. Glazman2025·10.1103/qsx1-7zmy·arXiv:2509.22902AbstractWe develop a theory that facilitates the use of the quantum twisting microscope (QTM) for probing momentum-conserving tunneling across a planar junction formed by a normal monolayer graphene tip and a superconducting graphene sample. The bias dependence of the zero-temperature tunneling conductance exhibits singularities that provide momentum-resolved information about the Bogoliubov quasiparticle spectra, including the superconducting gap. Using a model of superconducting twisted bilayer graphene, we show that tuning the tip doping level and tip-sample twist angle can enable measurement of the momentum-resolved superconducting gap in twisted bilayer graphene. The results suggest that QTM tunneling spectroscopy is a promising method for exploring superconductivity in two-dimensional van der Waals materials.Read more
Research paperTheoreticalTunneling spectroscopy of two-dimensional superconductors with the quantum twisting microscopeNemin Wei, Felix von Oppen, Leonid I. Glazman2025·10.1103/qsx1-7zmy·arXiv:2509.22902AbstractWe develop a theory that facilitates the use of the quantum twisting microscope (QTM) for probing momentum-conserving tunneling across a planar junction formed by a normal monolayer graphene tip and a superconducting graphene sample. The bias dependence of the zero-temperature tunneling conductance exhibits singularities that provide momentum-resolved information about the Bogoliubov quasiparticle spectra, including the superconducting gap. Using a model of superconducting twisted bilayer graphene, we show that tuning the tip doping level and tip-sample twist angle can enable measurement of the momentum-resolved superconducting gap in twisted bilayer graphene. The results suggest that QTM tunneling spectroscopy is a promising method for exploring superconductivity in two-dimensional van der Waals materials.Read more
