Quantum Monte Carlo Simulation of Frustrated Kondo Lattice Models.

  title={Quantum Monte Carlo Simulation of Frustrated Kondo Lattice Models.},
  author={Toshihiro Sato and Fakher F. Assaad and Tarun Grover},
  journal={Physical review letters},
  volume={120 10},
The absence of the negative sign problem in quantum Monte Carlo simulations of spin and fermion systems has different origins. World-line based algorithms for spins require positivity of matrix elements whereas auxiliary field approaches for fermions depend on symmetries such as particle-hole symmetry. For negative-sign-free spin and fermionic systems, we show that one can formulate a negative-sign-free auxiliary field quantum Monte Carlo algorithm that allows Kondo coupling of fermions with… Expand
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