Does the simulator of the IBM-Q supercomputer involves a CNOT gate error rate ?
What are the main differences reasons in outcome between simulators and real backends in IBM-Q ?
Best,
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Sign up to join this communityThe IBM Q simulator does not incorporate any error rates. The simulator is set to run in an "ideal" environment, so you do not see the affect of any noise or errors. It is possible to add a noise model to your simulation to have the run be closer to running on the real device, but by default this is not set.
The main difference between the outcomes from the simulator and the outcomes from the real devices are the effects of noise. The simulator will only ever give you your expected results, whereas the real devices will return some outcomes that are unexpected. The real devices are affected by gate errors, readout errors, general environment noise, and decoherence and relaxation of the qubits. All of these things contribute to the few unexpected outcomes from the real devices.