Matt Fishman

If you have the time and already have it prepared, that would be very nice if you could make a pull request for adding support for ?gesdd (I was also...

Hello, This is meant to be an error (defining any ITensor with repeated indices is not well defined behavior). It would definitely be good to have a better error message,...

Internally, a prime level of -1 is interpreted as the state that no prime level was input, and certain TagSet functions act differently if a prime level does or does...

I think the new issue Alexios is seeing is not an issue directly with the position function (see the email I sent him). Thanks for handling the change to the...

Yeah, just putting it here as a reminder. I added the `V3` label just to help specify which issues are specific to V3 (as opposed to V2), not as a...

Yes we should definitely have that operation, it just has not been very high up on the priority list. One thing you could do right now is `toDense(delta(i,prime(i))) - T`.

Hi, thanks for the pull request. You may have noticed that I recently added an implementation of gmres, which is an iterative solver for linear systems. In general in tensor...

@mingruyang, these new changes to the density matrix algorithm make the code look more complicated than before. What problems were you seeing before that this fixes? (I mean besides the...

Hi, thanks for the pull request. May I ask what your use case for adding this function is? I ask because in general, it is better to treat this type...

I see, you would like this function as a way to help create your starting density matrix `rho = |psi>`, and this function is just a convenient constructor for a...