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peachnuts
  • Member for 2 years, 6 months
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  • Montpellier, France
17 votes
2 answers
8k views

What's the difference between T1 and T2?

7 votes
3 answers
1k views

How to run a qasm file on IBMQ device?

7 votes
0 answers
46 views

Qubit fidelity of DWAVE device

6 votes
0 answers
86 views

Does Randomized Benchmarking characterize decoherence error?

5 votes
1 answer
162 views

Is there a physical definition of barrier operation in qiskit?

5 votes
1 answer
108 views

Can D-Wave machines solve QUBO problems more efficiently than gate model devices?

5 votes
2 answers
175 views

Why does quantum error correction work?

5 votes
4 answers
122 views

Derivation of the identity $\sum_j p_j \langle \psi_j|M|\psi_j \rangle = \sum_j p_j \operatorname{tr}\left(|\psi_j \rangle \langle \psi_j|M\right)$

4 votes
1 answer
470 views

Why is the action of controlled-Z unaltered by exchanging target control qubits?

4 votes
1 answer
157 views

How to calculate the generators of a list of stabilizer?

3 votes
1 answer
96 views

Data encoding in the quantum perceptron model

3 votes
1 answer
97 views

How to decompose Bloch sphere rotations $e^{\frac{i\theta}{2}(\cos(\phi)\sigma_x + \sin(\phi)\sigma_y)}$ in terms of $R_x,R_y,R_z$?

3 votes
1 answer
126 views

What is the source of this TranspilerError when running qasm file?

3 votes
2 answers
808 views

In Grover, how to implement oracle and amplification using Qiskit?

3 votes
2 answers
167 views

Why can different technology transpile the quantum gate to different representations?

3 votes
1 answer
537 views

Why qiskit superconducting device native gates different from that of trapped ion device?

3 votes
2 answers
144 views

Why IBM devices have the same number of qubit and the same architecture, but the error rates are different?

2 votes
1 answer
55 views

Are all the IBM QX mapping bidirectional?

2 votes
0 answers
26 views

Frequency collision and crosstalk error

2 votes
0 answers
38 views

Crosstalk error of simultaneous cnots

2 votes
1 answer
64 views

Circuit of quantum error correction code

2 votes
0 answers
54 views

What is quantum gate's correponding circuit implementation? [closed]

2 votes
0 answers
39 views

Does noise model in qiskit impact the optimized parameters for QAOA?

2 votes
1 answer
50 views

Why is there a frequency difference when performing ramsey experiment with setting neighbor qubits to different state?

2 votes
1 answer
183 views

Do VQE and QAOA use the same Hamiltonian?

1 vote
0 answers
249 views

Expectation value of a quantum circuit [closed]

1 vote
0 answers
126 views

Circuit state preparation using amplitude encoding

1 vote
1 answer
53 views

math behind rotation gate

1 vote
1 answer
120 views

Applications of pauli operator grouping for simultaneous measurement in VQE

1 vote
1 answer
79 views

What's the relation between the sign of error correction code and commute of operators?