Mean first-passage time of a bistable kinetic model driven by two different kinds of coloured noises

The transient properties of a bistable system are investigated when both the multiplicative noise and the coupling between additive and multiplicative noises are coloured with different correlation time τ₁ and τ₂. The mean first-passage time (MFPT) is obtained. The numerical computations show that the intensities of additive and multiplicative noises and the coupling strength λ affected the MFPT in the same way, while τ₁ and τ₂ play different roles in the MFPT. The increase of τ₁ can reduce the escape rate, while increase of τ₂ can enhance the escape rate.