TY - RPRT TI - Optical Fermi-edge singularities in a one-dimensional electron system with tunable effective mass. AU - JM Calleja AU - AR Goñi AU - A Pinczuk AU - BS Dennis AU - JS Weiner AU - LN Pfeiffer AU - KW West PY - 1995 DO - 10.1103/physrevb.51.4285 UR - https://pubmed.ncbi.nlm.nih.gov/9979270/ ID - 9979270 ER -