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JSdJ
  • Member for 3 years
  • Last seen this week
  • Berlin, Germany
32 votes

Which subatomic particle does each company use in quantum computing?

23 votes
Accepted

What are magic states?

11 votes
Accepted

How to perform quantum state tomography on two qubits?

11 votes

What is a flying qubit?

9 votes

How to build a quantum computer in your house?

9 votes
Accepted

Characteristics of the IBM quantum computer

8 votes

Can quantum computer solve NP-complete problems?

8 votes

What is the relationship between Choi and Chi matrix in Qiskit?

8 votes
Accepted

How to show that amount of qubits needed to crack the RSA-2048 protocol using Shor's algorithm?

7 votes
Accepted

Why are there eight $T$ magic state and twelve $H$ magic states?

6 votes
Accepted

Why is the complexity of $n$-qubit state tomography not upper bounded as $O(3^n)$?

6 votes
Accepted

What's the observable when measuring multiple qubits in the computational basis?

6 votes

Is it right to think of superposition as just angle?

5 votes

How to run an approximate simulation, and why

5 votes
Accepted

How to construct a CU3 gate using only CX and U3 gates?

5 votes

Is Quantum Computing a problem for Cryptography?

5 votes
Accepted

How to perform Quantum Process Tomography for three qubit gates?

5 votes
Accepted

What are examples of quantum computing platforms availble for free (other than IBM Q)?

5 votes

Why does quantum error correction work?

5 votes

How to define a quantum channel for the partial trace?

5 votes

Is spontaneous excitation possible?

5 votes
Accepted

Good references to learn magic state distillation for fault tolerance

5 votes
Accepted

Does a photonic quantum computer control a single photon?

5 votes

On Cluster States: Measuring in $|+\rangle$ and $|-\rangle$ basis vs. some other computational basis

5 votes
Accepted

5 qubit codewords definition in terms of operators: Mermin

5 votes
Accepted

Logical bit-flip and Phase-flip operators of Shor’s 9-qubit code

5 votes
Accepted

Do global phases matter when a gate is converted into a controlled gate?

4 votes

How can I factor Hadamard gates according to $U=e^{i\delta}R_x(\alpha)R_y(\beta)R_z(\gamma)$

4 votes

What is the largest number of stabilizers a pure state can have?

4 votes

Is it possible to have access to real quantum computers that have more than 15 qubits for my master thesis?