Questions tagged [ibm-quantum-devices]
The ibm-quantum-devices tag has no usage guidance.
169
questions
0
votes
1
answer
144
views
Equivalent method to `get_counts()` for `Aer_simulator`?
I was working on a quantum circuit and recently switched from using a local AerSimulator to some of the quantum backends provided by IBM.
When I used ...
- 103
3
votes
1
answer
139
views
Underlying Hamiltonians and pulse level controls of different commercially available quantum computers
My research area is in quantum state transfer, and I am trying to perform a 'proof of principle' that requires the underlying Hamiltonians of quantum systems and the control I can have on these ...
- 31
1
vote
1
answer
82
views
Current situation of quantum computing with respect to physical vs logical qubits
As an example I'm going to start with Google and IBM. Google has the Sycamore processor right now with 53 physical qubits. However I haven't found any info on how many logical qubits it can actually ...
- 155
1
vote
0
answers
48
views
PulseSchedule jobs not getting submitted on Pulse enabled machines on IBM Quantum
There was a recent migration, referring the below document:
https://qiskit.org/ecosystem/ibm-provider/tutorials/Migration_Guide_from_qiskit-ibmq-provider.html
Before this migration, I was using IBMQ ...
- 135
4
votes
1
answer
193
views
Retrieving job result attributes in Qiskit
I am trying to optimize a Hamiltonian using QAOA in IBM Qiskit.
I used the following 'minimize' function to get my result. (I am not including the whole code because it will get unnecessarily long).
<...
- 51
1
vote
1
answer
65
views
How to get pulse-level historical calibration data for OpenPulse devices?
I see that there is a way to access historical IBM backend properties such as gate errors and gate lengths (discussed here). Is there any way to also get pulse-level historical calibration data for ...
- 451
1
vote
0
answers
35
views
Running Pulse Schedules with different resilience levels
Is there a way to run a Pulse schedule with different resilience levels? I was thinking about passing the resilience level values in the options of Sampler primitive, but when I tried to run, it says ...
- 135
0
votes
2
answers
107
views
How can visualise the old error map of Ibm backend if one save the calibration data of the backend at that time?
I have the calibration data of an Ibm backend and now I want to plot the error map of the device at that specific time.
How can I do this?
- 27
1
vote
1
answer
68
views
How does error accumulate when entangling two distant qubits with limited connectivity?
My goal is to minimize accumulated error when entangling two qubits that cannot be entangled via a single native two qubit gate operation.
I have a coupling map/graph for the qubits of an IBM quantum ...
- 143
3
votes
1
answer
184
views
List of IBM devices
A few weeks ago I was on a website that had a list of IBM quantum devices and it showed the topology and frequency of each of the qubits but I can't seem to find that anymore. I was hoping that ...
- 77
1
vote
1
answer
89
views
New QASM2ParseError for old circuit on IBM composer
A while ago I wrote an example of quantum teleportation circuit in the IBM Composer which ran fine as of three days ago. Yesterday, however, when I try to run the circuit, I get the following error:
...
1
vote
1
answer
153
views
IBMQ Open Plan Access: How many circuits can i run per job? How many jobs can i run in general?
I think my question is not difficult at all, but I don't find any Information about the Open Plan of IBMQ. Such as how many circuits I can run per job and so on.
I could not find the EULA too, I ...
- 191
0
votes
0
answers
49
views
How to predict state vector of a quantum circuit in IBM qiskit
How to Predict the state vector output of the following quantum circuit?
...
- 145
2
votes
2
answers
248
views
What is a "quantum communication link"?
The IBM roadmap for scaling their quantum computers refer to a quantum communication link to combine together multiple smaller quantum chips. What is the technology that enables connecting together ...
- 123
1
vote
0
answers
45
views
Unable to open Qiskit Assignments for Qiskit 2023. (Quantum Challenge 2023) [closed]
Unable to open Qiskit Assignments for Qiskit 2023. (Quantum Challenge 2023)
I was very excited to be a part of Qi skit 2023. I went through all the lectures in the crowd cast, but now I am very upset ...
