I'm doing a university thesis using IBM's quantum backends. In my analysis I am making some considerations on what differentiates one backend from another other than the number of qubits and quantum volume.
The parameters that come into play are:
- Frequency: the difference in energy between the ground and exicted states
- Readout Error: the error in measuring qubit
- T1: the relaxation time
- T2: the coherence time
- CNOT error: the error on operating the 2-qubit gate
- Sqrt-x (sx) error: ?
- Anharmonicity: ?
- Gate time: ?
The last three I have not yet understood.
Is each single qubit powered individually or does it follow the topological configuration of the backend?
For example if I used a 5 qubit system and used the linear configuration 0-1-2-3-4 and used 0-1 and 3-4. Does the current have to go from 2 to get to 3-4? Or are they powered individually?
I tried to look for articles and information on the internet that gave me these answers but I did not find anything, if you have any material that may be useful to me, please link it to me!
