FIG. 13.

Illustration of calculation of phase boundaries. The red line indicates the central density, which lies on the σ_R = σ_L line for symmetric boundary conditions. Backward integration from this line (black arrows) to $x=-\frac{1}{2}$ gives the thick blue and green lines, where the blue line corresponds to σ < 0 and green line σ > 0. Applying the matching condition to σ_L and σ_R (blue and green arrows) gives the dashed blue and green lines, respectively. These are the phase boundaries of the LH phase. The green dashed line stops around σ_R = −0.1386 and will not extend to σ_R = 0 line. The switching rate is 0.5 s⁻¹, bulk motor concentration c = 200 nM, and the motor speed 5 μm s⁻¹; other parameters are the reference values of Table I.