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Physical Review E
We consider separately a spin and an oscillator that are coupled to their environment. After a finite interval of random length, the state of the environment changes, and each change causes a random change in the resonance frequency of the spin or vibrational frequency of the oscillator. Mathematically, the evolution of these frequencies is described by a continuous-time random walk. Physically, the stochastic dynamics can be understood as non-Gaussian because the frequency of the system anddoi:10.1103/physreve.84.061111 pmid:22304044 fatcat:364dj4hknngfpcwkfvn2j33tji