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Adrien Suau's user avatar
Adrien Suau's user avatar
Adrien Suau's user avatar
Adrien Suau
  • Member for 6 years, 2 months
  • Last seen this week
18 votes
Accepted

How many operations can a quantum computer perform per second?

17 votes
Accepted

Phase-Shift Gate in Qiskit

10 votes
Accepted

What are theta, phi and lambda in cu1(theta, ctl, tgt) and cu3(theta, phi, lam, ctl, tgt)? What are the rotation matrices being used?

10 votes
Accepted

Is there any method of adding two operators in a circuit?

9 votes

Sampling random circuits vs Solovay-Kitaev compiler

9 votes

What are physically allowed CNOTs for Rigetti's 19 qubit chip and Google's 72 qubit BristleCone chip?

9 votes
Accepted

How to implement a matrix exponential in a quantum circuit?

8 votes

Qubits specification on IBMQ devices

8 votes

What is maximum circuit depth and size IBM Q5 and Q16 could handle?

7 votes
Accepted

Quantum algorithm for linear systems of equations (HHL09): Step 2 - What is $|\Psi_0\rangle$?

6 votes
Accepted

Quantum algorithm for linear systems of equations (HHL09): Step 1 - Confusion regarding the usage of phase estimation algorithm

6 votes
Accepted

Is there a Hamiltonian simulation technique implemented somewhere?

5 votes
Accepted

Why it is hard to simulate a quantum device by a classical devices?

5 votes
Accepted

What do empty white circles mean in a quantum circuit?

5 votes
Accepted

What are the biggest obstacles currently preventing us from solving real world problems defined in terms of quantum simulation?

4 votes
Accepted

How can I get the number of measurements where any specific qubit is equal to 0?

4 votes
Accepted

Return only the measurements of a circuit

4 votes
Accepted

Why won't Qiskit ccx gate accept registers?

4 votes
Accepted

Controlled unitary from the HHL algorithm – practical implementation using Qiskit

4 votes
Accepted

How is the precision of a quantum simulation algorithm actually proved?

4 votes

Why can the QFT be replaced by Hadamard gates?

4 votes

Quantum algorithm for linear system of equations (HHL) - Final Step: How can I find my vector of solution $|x\rangle$?

4 votes
Accepted

Using the HHL algorithm to compute $A |b \rangle$ instead of $A^{-1} |b \rangle$

3 votes
Accepted

Optimise implementation of a quantum algorithm when an input is fixed

3 votes

Is running a large random brute force on quantum computer possible at the moment?

3 votes

Unit testing for quantum programs?

3 votes

Phase estimation error analysis

3 votes

Permutation of initialized states

3 votes

Writing the notation when gates act on non successive registers

3 votes

Clarification of the "Calculations" section of the (HHL09) paper