Skip to main content
Share Your Experience: Take the 2024 Developer Survey
ahelwer's user avatar
ahelwer's user avatar
ahelwer's user avatar
ahelwer
  • Member for 5 years, 10 months
  • Last seen more than a month ago
14 votes
Accepted

Density matrix after measurement on density matrix

13 votes
Accepted

What do they mean by "qubit can't be copied"?

13 votes

How would I implement the quantum oracle in Deutsch's algorithm?

11 votes

How does measurement of one qubit affect the others?

11 votes

Are there any organised resources available from where I can begin my quantum computing studies?

10 votes
Accepted

What exactly are Quantum XOR Games?

8 votes

What is quantum computing vs. what is not quantum computing

7 votes

Why is there a difference between the simulation results and the actual quantum computer results?

6 votes

What is the "sum-over-paths" picture of quantum computing?

6 votes
Accepted

Randomness from deterministic machine

6 votes

Understanding (theoretical) computing power of quantum computers

6 votes
Accepted

How can quantum computing win 97% of times in coin flipping experiment?

5 votes
Accepted

What is the matrix for the operator that implements a function to tell the parity of its argument?

5 votes
Accepted

Implementing the one-bit Deutsch Oracle algorithm using phase

5 votes
Accepted

How to say "apply CNOT on qubit 1 controlled by qubit 2"?

4 votes
Accepted

Is it possible to create a superposition in IBMQ QISkit which has probability amplitudes $|a|\neq |b|$?

4 votes
Accepted

What does $|j\rangle$ mean, when $j > 1$?

4 votes

Constructing a circuit which performs the transformation $|x,y\rangle \to |x, x + y \bmod 4\rangle$

4 votes

Do the probability amplitudes describe the probability of projective measurement?

4 votes
Accepted

Building a matrix corresponding to the teleportation circuit

4 votes

Does quantum computing relate to stochastic computing in any way?

4 votes

What circuit or operation corresponds to the tensor product?

4 votes

Quantum computing concepts

4 votes

What would be an informative introduction to quantum computing software?

3 votes

How to translate matrix back into Dirac notation?

3 votes

Can I call $\{|0\rangle, |1\rangle\}$ the "standard computational basis" as it is done in linear algebra?

3 votes
Accepted

What is the actual mechanism behind quantum computing?

3 votes
Accepted

Why is measurement needed in teleportation?

3 votes

Quantum speedup without entanglement

3 votes

Can you use Rz to flip from $|+\rangle$ to $|-\rangle$?