Quantum computing framework for writing programs and applications
Qiskit is an open-source software development kit (SDK) for working with quantum computers at the level of circuits, pulses, and algorithms.
Questions tagged [qiskit]
237 questions
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1 answer
How to create Entanglement, Superposition and interference?
I am looking the way How to create Entanglement, Superposition and interference? Can someone help to show how to code in qiskit? and the docs related to these mentioned above?
Thanks
Paul Kit
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1 answer
'qiskit' has no attribute '__qiskit_version__'
as title says, I type
qiskit.__qiskit_version__
and get the error AttributeError: module 'qiskit' has no attribute 'qiskit_version'.
I have Anaconda installed as well as pip installed qiskit and qiskit[visualization]. The jupyter notebook only…
Long De
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1 answer
How to solve TSP problem with more than 3 nodes in the tutorial of Max-Cut and Traveling Salesman Problem Qiskit 0.24.0?
I had to try the example of qiskit’s Traveling Salesman Problem with 3 nodes and executing it at IBM backend called simulator_statevector.Can execute and get the result normally.
But when trying to solve the TSP problem with more than 3 nodes,I…
Snogry
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2 answers
Quantum Computing Basics
I am studying quantum computing and created the circuit below:
Qiskit Quantum Circuit
In such a circuit, should q2 be at the probability of 25%? Because the Toffoli gate has 2 control inputs that haven't been collapsed yet. So the inputs could be…
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1 answer
How to get a default EquivalenceLibrary?
I want to use the BasisTranslator in Qiskit to process my circuit to base gates.
One of the constructor parameters for BasisTranslator is EquivalenceLibrary. I attempted creating a parameter-less EquivalenceLibrary() and pass it to a…
3yakuya
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compare between the factorization time get prime
i try to compare between the factorization time between : 1) classical algorithm function:
def is_prime1(n):
if n<2:
return False
for i in range(2,n):
if n % i ==0:
return False
return True
def…
ammar ibrahim
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0 answers
python IBM quantum lab error with qiskit enable account
I am logged in IBM Quantum lab (https://quantum-computing.ibm.com/lab). I tried to use Shor's alghoritm with number 21. Here is Python source code:
(It is also here: https://quantumcomputinguk.org/tutorials/shors-algorithm-with-code)
But the output…
Klovik
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0 answers
Qiskit: how can you use a different state for each shot in a quantum circuit?
I am trying to run a quantum circuit many times, each time using a different random state - a single qubit i.e. |\psi>= a|0> + b|1> with different a and b. Once each qubit has gone through the circuit, I am saving the state vector of the final…
e.deacon
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1 answer
Can I have two iterables in the reduce function? (Python)
Suppose I have the following command (using Python and Qiskit):
a = reduce(lambda x,y: x.compose(y,c),circli, qcla)
(qcla is an initializer)
Here, compose is an internal qiskit function, x and y are elements of the list circli (iterable). I'm…
ZR-
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1 answer
QisKit: Difference on Statevector / No Difference on Vizualization
Why is there a difference in the state vectors, but there is no difference in the visualizations?
Is there any other visualization to show the differences?
qiskit: 0.23.3
python: 3.8
circuit-1 + statevector:
q_0:
[1.+0.j 0.+0.j] ==> +1
circuit-2…
Dida
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- 3
0
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1 answer
qbit collapse before Quantum Teleportation
I have been tweaking with quantum teleportation in python qiskit. One extra thing that I have done in the following diagram is the measurement of q330 at the very beggining.
I am doing this because I wanted to see if the measurement is always same…
Sayan Dey
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1 answer
Jupyter Notebook failed command in Anaconda Prompt for Qiskit
I have Qiskit installed via Anaconda and a virtual environment set up in Python 3.8. when I run (.venv) C:\Users\brenm>jupyter notebook (in Anaconda prompt) it fails and throws 'jupyter' is not recognized as an internal or external command, operable…
michaeltheedev
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0
votes
1 answer
Jupyter Notebook command failing in Qiskit
I have Qiskit installed via Anaconda and a virtual environment set up in Python 3.8. When I run the command jupyter notebook in the Anaconda prompt I get an error. I'm not sure what the problem is. How do I fix it?
(.venv) C:\Users\brenm>pip install…
michaeltheedev
- 11
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0
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1 answer
Is CSP Layout always the first algorithm used by qiskit transpiler to map quantum circuit?
I'm using Qiskit transpile with optimization_level=3. I was wondering if CSP layout selector is always the first algorithm tried by Qiskit, also if I set as layout_method='noise_adaptive' or other methods.
If not, how to force the transpiler to use…
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0 answers
IBM Quantum computer code keeps running job after job
I'm using qiskit for my University research project but whenever I send a job to run on IBM's Quantum experience, it'll wait in the queue, run, obtain results (in the form of a histogram) but instead of moving to the next part of the code (analyzing…
RWard17
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