Hi Hamideh, Most SymPy users do not use the quantum module and probably don't know anything about quantum mechanics. Your question probably does not have enough detail for anyone to be able to answer it. It would be better to be more explicit:
1. What system are you considering? 2. What would the "reduced density matrix" look like? 3. How would you calculate it by hand? 4. What code have you already tried? Oscar On Sunday, 31 July 2022 at 07:36:47 UTC+1 hmaso...@ku.edu.tr wrote: > Hi, > I'm new to SymPy, and I'm in the middle of a calculation where I use the > groundstates of a Heisenberg model hamiltonian to write my density matrix. > I found the function Density() which rewrites the matrix as a superposition > of qubits, but then I am stuck. > Is there any function to calculate the reduced density matrix? > Or any function for partial trace? > Or any way to decompose, let's say, |000> to |0>|0>|0>? > > Any help is appreciated > Hamideh > -- 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/4aeae5cc-2709-4866-85a3-e92c0766f0b7n%40googlegroups.com.
