All Questions
Tagged with ibm-quantum-devices programming
42
questions
0
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0
answers
10
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Process Tomography and transpiler not running and eventually crashing kernel
I am running a Quantum Process Tomography on a circuit with a custom pulse added to a calibation for a CNOT gate.
Upon running the circuit, running it on the backend takes forever and eventually ends ...
1
vote
1
answer
27
views
qiskit_aer.aererror.AerError: 'unknown instruction: ccry'
I'm trying to use qiskit_aer_gpu 0.14.2 with qiskit 1.1.0
I defined the class CCRYGate() y another script gate.py
...
- 31
0
votes
2
answers
63
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Quantum Computing - via Qiskit - error 403
A year ago, I registered in the IBM Quantum Computing app, which provides access to quantum computers and to simulators. I got an API key, and was able to run some programs.
However, lately, I try to ...
- 11
3
votes
1
answer
220
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IBM fake backend vs real backend
It is claimed that the fake backends of IBM will have noise similar to the real backends. However, to what extent can we expect them to produce the same results?
I have run my quantum circuit on the ...
- 121
1
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0
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62
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How to run the post processing and return results in QAOA?
As suggested in TranspilerError: 'Number of qubits (40) in QAOA is greater than maximum (30) in the coupling_map' issue. I managed to submit the job to IBM quantum and the circuit runs successfully.
...
0
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1
answer
90
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QiskitBackendNotFoundError - Unable to run the backend using BackendEstimator primitive
I am trying to run a small quantum circuit and generate the expectation value of an observable using the BackendEstimator primitive by incorporating the noise model ...
- 23
2
votes
2
answers
400
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TranspilerError: 'Number of qubits (40) in QAOA is greater than maximum (30) in the coupling_map'
Hi Ive been trying to solve a custom PO problem using QAOA and I ran into this particular error. As per my understanding,this is due to the limitation of the simulation hardware. But as per the ...
0
votes
1
answer
37
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IBMProvider.load_account() AttributeError: type object 'IBMProvider' has no attribute 'load_account'
I am trying to resolve the below deprecation warnings I am getting while using IBMQ framework.
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-1
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2
answers
329
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Instruction h is not supported
I'm new at quantum computing and I'm trying to run a script with IBM quantum. I'm using brisbane and getting that error "Instruction h is not supported". I get the same error for cx gate as ...
- 1
1
vote
2
answers
294
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what quantum computing simulator can achieve drag-and-drop programing fuction without internet like IBM web composer?
I reallt need some kind of simulator can work like this.Quirk is similar but also require internet.can anyone know how to achieve this?It is very important for some eaducational lesson to students.
- 19
4
votes
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answers
35
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How does it work QasmSimulator with the option "density matrix"?
I am making some simulations on IBM Quantum Lab and as backend I tried to use QasmSimulator(method = "density_matrix") in order to simulate noise. I wanted to know how this method works in ...
2
votes
1
answer
135
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Iterative quantum phase estimation - real device
I'm trying to implement the iterative quantum phase estimation on a real (IBM) quantum computer. I'm using the code below. When I run this code on a simulator the results are the expected ones, but ...
4
votes
1
answer
147
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Can the ancilla for Qiskit's mcx with mode="recursion" be dirty?
I think their implementation is close to the one from here which does use a dirty ancilla, but I just want to make sure
- 585
5
votes
1
answer
3k
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Difference between Aer.get_backend('aer_simulator') and AerSimulator()
In Qiskit, there are several ways to choose simulator: one is
from qiskit import Aer
backend = Aer.get_backend('aer_simulator')
result = backend.run(circ).result()
...
- 131
1
vote
1
answer
190
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Qiskit - lesson 3 - with Abe
Coding for Qiskit
I watched this video:
https://www.youtube.com/watch?v=RrUTwq5jKM4
Using Mac OS Big Sur
Using Jupyter 2.0.8
Using Python 3.8
The below code did not work and therefore installed ...
- 11