  Determinant quantum Monte Carlo (DQMC) is a widely used unbiased numerical
method for simulating strongly correlated electron systems. However, the update
process in DQMC is often a bottleneck for its efficiency. To address this
issue, we propose a generalized delay update scheme that can handle both onsite
and extended interactions. Our delay update scheme can be implemented in both
zero-temperature and finite-temperature versions of DQMC. We apply the delay
update scheme to various strongly correlated electron models and evaluate its
efficiency under different conditions. Our results demonstrate that the
proposed delay update scheme significantly improves the efficiency of DQMC
simulations, enable it to simulate larger system size.
