2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/109457In two recent articles [PRL 90, 026802 (2003); PRB 69, 085307 (2004)], we developed a transport theory for an extended tunnel junction between two interacting fractional-quantum-Hall edge channels, obtaining analytical results for the conductance. Ponomarenko and Averin (PA) have expressed disagreement with our theoretical approach and question the validity of our results (cond-mat/0602532). Here we show why PA's critique is unwarranted.1 page, no figures, RevTex4Mesoscale and Nanoscale Physicstext