All Questions
Tagged with error-correction qiskit
59
questions
1
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1
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194
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Measurement of readout errors for error mitigation algorithms
I am using an error mitigation algorithm that uses the readout errors p(0|1) and p(1|0) to correct the errors due to noise in my original circuit. I am trying to measure the readout errors in the same ...
- 199
1
vote
1
answer
197
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Logical error rate for QECC using qiskit
I've been coding QECC with qiskit recently. As I'm not very skilled in programming I encountered a lot of questions.
Now I'm trying to generate the logical error rate against physical error rate graph ...
- 386
0
votes
0
answers
182
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Qiskit, possible to manipulate mid-circuit measurement outcomes?
I'm currently coding up an error correction gadget using qiskit.
The one I'm doing now is 7-qubit Steane code with Steane's error correction gadget, in which the ancilla qubits are measured and then ...
- 386
2
votes
1
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446
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Estimate of threshold values for 7-qubit Steane code with qiskit (or stim)
I have trouble recreating the graphs shown in this paper
https://arxiv.org/pdf/quant-ph/0508176.pdf
i.e. the quadratic trend of the logical error against physical single qubit error for [7,1,3] code
I ...
- 386
1
vote
0
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78
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Why QECC amplitude damping error syndrome and qiskit simulation are different?
The [[3,0,2]] code, stabilizers are X1Z2I3,Z1X2Z3,I1Z2X3.
Use the circuit to decode and measure stabilizers:
As for amplitude damping error syndrome, use $\left[\begin{array}{cc}1 & 0 \\ 0 & ...
- 21
4
votes
1
answer
510
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How the real IBM quantum computers apply arbitrary Rz(θ) gate rotation? [closed]
I want to ask the following questions:
(1) The basis gate set of IBM quantum computers is { Id, Rz(θ),√X, X, CNOT, reset}. Somebody said that IBM didn’t really apply Rz(θ) gate on the machine. The ...
- 95
1
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1
answer
269
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How to interface stim to a generic qiskit decoder?
I can generate encoder/decoder circuits for arbitrary QECC in qiskit. I tested a number of codes : $[[5,1,3]], [[7,1,3]],[[8,3,3]],\cdots$ and everything seems to work fine. The problem is that the ...
- 2,217
3
votes
1
answer
416
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is cirq suitable for simulation of quantum error correction?
I experimented with stim and qiskit for QECC simulations. They both have limitations : for example stim has no support for non-clifford operations (qiskit does); qiskit has no support for multiple ...
- 2,217
1
vote
1
answer
437
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how to go from matrix to tableau to circuit in qiskit or stim
I'm working with QECC using a non-python based platform. I'd like to move the results into python to do calculations that are better handled by packages like qiskit or stim. So the output of the non-...
- 2,217
3
votes
1
answer
150
views
How to set the meas_level and optimization_level in Quantum Azure IonQ provider?
I am performing a benchmark process using the Azure Quantum IonQ provider. I use Qiskit in the Azure platform, and I was trying to see how to control the transpiling and compiling process. It seems ...
- 284
1
vote
2
answers
155
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The statevector of three-qubit bit-flip encoding circuit for entangled state
I was trying to implement a three-qubit bit-flip code for shared entangled state. I was curious to analyze this mathematically, but the problem is I can't calculate the statevector after encoding. ...
- 374
0
votes
0
answers
59
views
How to set up a error detection and correction scheme on qiskit
Does, at the state of the art, Qiskit allows to do error detection and correction?
If yes, how can I do it?
- 1,988
1
vote
1
answer
242
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Information about the output of %qiskit_backend_overview
Does anyone know where can I find more information about the meaning of some parameters outputted by %qiskit_backend_overview ? I mostly refer to "Avg. T1/T2&...
0
votes
1
answer
80
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Is it possible for public users to run experiments using Qiskit's surface code?
I'm an undergrad who would like to run some experiments using the surface code. I've been able to use their quantum repetition code (https://qiskit.org/textbook/ch-quantum-hardware/error-correction-...
- 103
4
votes
2
answers
247
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Why aren’t repetition codes used to encode qubits in superposition states?
I just finished reading the section of the qiskit textbook on quantum error correction using repetition codes(https://qiskit.org/textbook/ch-quantum-hardware/error-correction-repetition-code.html) and ...
- 103