Numerical properties of staggered overlap fermions

Understand

We report the results of a numerical study of staggered overlap fermions, following the construction of Adams which reduces the number of tastes from 4 to 2 without fine-tuning.

• We study the sensitivity of the operator to the topology of the gauge field, its locality and its robustness to fluctuations of the gauge field.
• We make a first estimate of the computing cost of a quark propagator calculation, and compare with Neuberger's overlap.