# noisy circuit by openfermion

I am working on designing quantum error mitigation algorithms for simulating chemical systems. Therefore, a necessary component is to add noisy to the ideal circuit when using a quantum simulator. But I notice there is no such features in the official documentation of openfermion. Is there a way to add noise to the circuit in openfermion?

noisy = ideal.with_noise(cirq.depolarize(p=0.01))

where ideal and noisy are instances of cirq.Circuit. Alternatively, you can use a simulator such as cirq.DensityMatrixSimulator which allows you to add noise to the simulation, e.g.
noise = cirq.ConstantQubitNoiseModel(cirq.depolarize(0.01))