gusucode.com > qit_matlab_0.10.0工具箱源码程序 > qit/+gate/single.m
function U = single(L, t, d_in) % SINGLE Single-qudit operator. % % U = single(L, t, d_in) % % Returns the operator U corresponding to the local operator L applied % to subsystem t (and identity applied to the remaining subsystems). % % d_in is the input dimension vector for U. % James Whitfield 2010 % Ville Bergholm 2010-2011 if isa(L, 'lmap') L = L.data; end if d_in(t) ~= size(L, 2) error('Input dimensions do not match.') end d_out = d_in; d_out(t) = size(L, 1); U = lmap(op_list({{L, t}}, d_in), {d_out, d_in});