  We show here that a direct application of resummation-based quantum Monte
Carlo (QMC) -- implemented recently for sign-problem-free SU(2)-symmetric
Hamiltonians in the stochastic series expansion (SSE) framework -- does not
reduce the sign problem for frustrated SU(2)-symmetric Heisenberg
antiferromagnets on canonical geometrically frustrated lattices composed of
triangular motifs such as the triangular lattice. In the process, we
demonstrate that resummation-based updates do provide an ergodic sampling of
the SSE-based QMC configurations which can be an issue when using the standard
SSE updates, however, severely limited by the sign problem as previously
mentioned. The notions laid out in these notes may be useful in the design of
better algorithms for geometrically frustrated magnets.
