Representation of the Boltzmann operator via the chain of imaginary time coherent states and its application to calculation of real time correlation functions

► New representation of the Boltzmann operator via classical N-body chain is proposed. ► The representation can be efficiently combined with real-time SC-IVR methods. ► Quantum time correlation functions are calculated for several 1D systems. ► Long-time behavior of quantum time correlation functions is well described.