Review Materials challenges and opportunities for quantum computing hardware View ORCID Profile Nathalie P. de Leon 1, .Kohei M. Itoh 2, .View ORCID Profile Dohun Kim 3, .Karan K. Mehta 4, .View ORCID Profile Tracy E. Northup 5, .View ORCID Profile Hanhee Paik 6 , * , .View ORCID Profile B. S. Palmer 7 , 8, .View ORCID Profile N. Samarth 9, .View ...