bm442's user avatar
bm442's user avatar
bm442's user avatar
bm442
  • Member for 1 year, 7 months
  • Last seen this week
  • Braga, Portugal
9 votes
Accepted

Doing non-unitary operations on quantum computer

7 votes
Accepted

Clarification on state prep for quantum phase estimation

6 votes
Accepted

What is "Fixed-Point" in the Fixed-Point quantum search?

6 votes
Accepted

What is the original reference for the Hadamard test?

5 votes
Accepted

What is the "additive error" of Swap Test?

4 votes

Generalized version of the Hadamard test for $\text{Re} \langle \phi | U | \psi \rangle$

4 votes

Hadamard Overlap Test

3 votes
Accepted

Quasiprobability decomposition of the CZ-gate

3 votes
Accepted

Survival probability quantum circuit

2 votes

How to prepare all the computational basis states by running the same quantum ansatz with distinct $\theta$ values?

2 votes

Decomposition of $\exp(-i (X_1X_2 + Y_1Y_2) X_3)$

2 votes

Simplest 2-site VQE Ansatz to generate all states?

2 votes

How to derive the state of a qubit after a partial measurement?

2 votes

Is it known whether the Fermi-Hubbard ground state can be prepared efficiently or not?

2 votes
Accepted

Ancilla intuition, when to use them, how to recognize when I'd want to use them?

2 votes
Accepted

CNOT quasiprobability decomposition with $\gamma = 3$

2 votes
Accepted

Can you construct a quantum circuit where all qubits are initially in a superposition, but there is still entanglement?

2 votes
Accepted

How to rewrite the quantum state to qubits?

2 votes

Steps to build a 3 qubit Quantum circuit based on final statevector

1 vote

How to calculate a matrix difference in a quantum circuit in the form $A - BAB$

1 vote

How to perform the measurements on a quantum circuit in W state basis?

1 vote

Computing $e^{i\phi Z}$ in polynomial time

1 vote
Accepted

I don't understand the rewriting of the controlled phase shift gate

1 vote

Can one obliviously reflect about the *initial* state in fixed-point amplitude amplification?

1 vote

Amplitude amplification in Grover's search

1 vote
Accepted

How can I use Quantum Shanon Decomposition for any $N \times N$ matrix?

1 vote
Accepted

For the superposition state of a composite system, how to use the quantum amplitude amplification algorithm to simultaneously amplify several of them

1 vote
Accepted

How to transform a multipartite state in tensor form into a bipartite state?

0 votes

Building Unitaries in TSP Quantum Phase Estimation Qiskit?

0 votes

How to find a circuit for a unitary operator $e^{-i s |v \rangle \langle v| t }$?