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1 vote
1 answer
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How to construct a quantum circuit that given $|\psi_0\rangle,|\psi_1\rangle$ outputs $|\psi_0\rangle+|\psi_1\rangle$?

0 votes
1 answer
37 views

Performance metrics in QSVM

1 vote
1 answer
672 views

Taking the two qubit reduced density matrix on a 5 qubit system

4 votes
2 answers
50 views

Why should we purify a mixed state?

3 votes
1 answer
157 views

Are the pure quantum states that make up a mixed state orthogonal?

0 votes
1 answer
22 views

Converting data into a SHA256 hash using Qiskit quantum computer

5 votes
2 answers
608 views

Meaning of "diagonal to the computational basis"

2 votes
1 answer
45 views

What is the difference between $|+\rangle$ and $|-\rangle$?

1 vote
2 answers
30 views

How is the ket of a quantum state calculated in this code?

3 votes
0 answers
27 views

How is this Variational Quantum Singular Value Decomposition paper efficient in any way?

1 vote
2 answers
48 views

Can I Convert a Qubit in complex form to polar form?

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ket statevector of a 2-quibit system

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How to sum equal terms in a superposition state?

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1 answer
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How to retrieve a quantum state after passing through a series of quantum gates?

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