For setting T1/T2 times, measurement error, and other errors (like reset errors etc.) you can make a custom noise model by using the NoiseModel()NoiseModel() function from the qiskit_aer.noise module.
Here is a high-level overview of how you can achieve this:
To use this function, you first define what errors you want to model and on what gates you want to apply this errors.
Then you add these errors to a noise model, and here you get to pick if you want to apply the noise models to all the qubits or just some specific qubits.
After doing this, you can use your noise model in the
AerSimulator()to simulate your circuit on the simulator or you can specify your custom backend to transpile and run your circuit.
Here is the linkHere is the link to the documentation for building noise models https://docs.quantum.ibm.com/verify/building_noise_models#build-noise-models
Hope. Hope this helps!