Hello everyone, my question is about Euclidean correlators (say a 2-pt function to be specific) in presence of non-zero chemical potential. The question in particular is: is it still true that the Minkowski time ordered 2-pt function can be simply obtained from the Euclidean one by analytic continuation? Is this property spoiled by the presence of a chemical potential? My confusion is mostly due to the fact that, if I'm not mistaken, a real chemical potential in Minkowski should be analytically continued to an imaginary one in Euclidean signature and I don't know if this is a problem or not. Thanks!