Hi, I am a beginner in the field (about halfway through my first course) and I too think you are right about this being a bug. I think making `Dagger` a subclass of `Operator` should work as a hermitian conjugate should behave as an operator.
On Wed, Jul 1, 2020 at 3:18 AM Aaron Meurer <asmeu...@gmail.com> wrote: > I don't know enough about the quantum module to know what sorts of > automatic evaluation would be expected, but this looks like it is a > bug. Can you open an issue on the issue tracker about it > https://github.com/sympy/sympy/issues/new > > Aaron Meurer > > On Mon, Jun 29, 2020 at 11:28 AM Michele Cotrufo > <michelecotr...@gmail.com> wrote: > > > > It worked, thanks! > > > > On Sunday, June 28, 2020 at 3:17:15 PM UTC-4, Oscar wrote: > >> > >> Hi Michele, > >> > >> I don't know the quantum module so well but does qapply work in this > case? > >> > >> Oscar > >> > >> On Sat, 27 Jun 2020 at 19:52, Michele Cotrufo <michele...@gmail.com> > wrote: > >> > > >> > Is there a way to specify that the identity operator must act as > identity also on the adjoint operators? > >> > > >> > from sympy.physics.quantum.dagger import Dagger > >> > from sympy.physics.quantum.operator import Operator > >> > from sympy.physics.quantum import IdentityOperator > >> > A = Operators('A') > >> > Identity = IdentityOperator() > >> > A * Identity #This gives A, correctly > >> > B = Dagger(A) > >> > B * Identity #This returns A^\dagger I . so it does not remove the > identity operator > >> > > >> > -- > >> > You received this message because you are subscribed to the Google > Groups "sympy" group. > >> > To unsubscribe from this group and stop receiving emails from it, > send an email to sy...@googlegroups.com. > >> > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/83e0e21a-4f5a-48b9-9010-74a392928245o%40googlegroups.com > . > > > > -- > > You received this message because you are subscribed to the Google > Groups "sympy" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to sympy+unsubscr...@googlegroups.com. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/1deb24bf-4d9b-4252-88dd-797dde4234f1o%40googlegroups.com > . > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sympy+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/CAKgW%3D6LMdygsJoo4fZ1xyKDzaz5x8uYUoP8Dv6Qo%2Bn5zfgAAzA%40mail.gmail.com > . > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAFcc4sHeLieZfFBUeA7G4V_fRnjduW0_GzhkoqwS0_7Ld1kr2Q%40mail.gmail.com.