Analytical approach to the current correlation function in dissipative two-state systems

作者：Wang, Qin^*; Jiang, Cheng; Zheng, Hang

来源：Frontiers of Physics in China, 2008, 3(1): 49-54.

DOI：10.1007/s11467-008-0010-6

• dissipative two-state systems
• coherent- incoherent transition
• current correlation function

Using the spin-boson model with coupling to Ohmic bath, an analytical approach is developed to study the dynamics of the current correlation function in dissipative two-state systems with the view of understanding the effects of environment and tunneling on the coherent oscillation and the long-time decay of the current correlation function in these systems. An analytic expression of current correlation function is obtained and the results agree very well with that of numerical simulations.

• 出版日期2008-2
• 单位上海交通大学