Figure 3: The gauge defects shown in the dual picture.
From: Fault-tolerant error correction with the gauge color code
(a) A pair of yb gauge defects, shown by the vertices, can be caused by a string of incorrect yb face outcomes on the dual lattice. The displayed gauge syndrome is equivalent to that shown in Fig. 2c where the measurement errors have occurred on the faces that returned −1 outcomes. (b) Three gauge defects, colored gy, gb and yb, can be caused by an error string that branches at a red cell. The branching point indicates a stabilizer defect at a red cell. (c) Strings of incorrect face outcomes of colors rg and gb terminate at a yellow boundary.
