# Quantum Monte Carlo Simulation of Frustrated Kondo Lattice Models.

@article{Sato2018QuantumMC, title={Quantum Monte Carlo Simulation of Frustrated Kondo Lattice Models.}, author={Toshihiro Sato and Fakher F. Assaad and Tarun Grover}, journal={Physical review letters}, year={2018}, volume={120 10}, pages={ 107201 } }

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

#### 16 Citations

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Exploring the Kondo Effect of an Extended Impurity with Chains of Co Adatoms in a Magnetic Field.

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This work argues that the effective two-level system realized at a level crossing acts as an extended impurity coupled to the conduction electrons of the substrate by a distribution of Kondo couplings at the sites of the chain. Expand

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