Junction of three off-critical quantum Ising chains and two-channel Kondo effect in a superconductor Domenico Giuliano, Gabriele Campagnano and Arturo Tagliacozzo Eur. Phys. J. B, 89 11 (2016) 251 Published online: 21 November 2016 DOI: 10.1140/epjb/e2016-70477-7