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Results tagged with density-matrix
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user 10028
For questions about density matrices and related concepts and ideas, e.g. procedures for computing properties of quantum states from their density matrices.
2
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1
answer
625
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Computation of qubits with quantum gates using density matrix form
I'm making a quantum circuit with qubits and quantum gates. While I'm doing it, I have some problem with it. My calculation process is below.
As you can see, start qubit is $|0 \rangle$ and after 'X' …
- 967
1
vote
2
answers
2k
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How to represent the state vector form of a qubit in density matrix representation? [duplicate]
While I'm studying state vector and density matrix. I wonder how to write qubit state as density matrix. qubit state can be represented with state vector form. But how about density matrix?
- 967
0
votes
1
answer
113
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Information about two algorithms of Matrix product state
In qiskit backends, there is Matrix_product_state.
With this backend, I can simulate circuit for several qubits. And I found some mysterious problem about MPS. With 25,26,27 qubits, the simulating tim …
- 967