Berger, H.Garnier, M.Bommeli, F.Degiorgi, L.Schlenker, C.Grioni, M.2010-04-072010-04-072010-04-07199610.1088/0031-8949/1996/T66/031https://infoscience.epfl.ch/handle/20.500.14299/49221We briefly review some recent photoelectron spectroscopy (PES) studies of quasi one- and two-dimensional metallic systems. We discuss the spectral features of a metallic system, the expected fingerprints of the metal-insulator transition and some experimental and conceptual limitations of the single particle framework. This approach gives a satisfactory interpretation of PES experiments in 2D charge-density-wave materials. The single particle picture is however incompatible with experiments on 1D systems.Band Electronic-StructureCharge-DensitySpectral-FunctionTemperature-DependenceOrganic ConductorsLuttinger ModelFermi GasTransitionSpectroscopyLiquidstext::journal::journal article::research article