Figure 1

Phase diagrams for (a) supercritical and (b) subcritical values of the coupling constant $G$ at zero temperature. All quantities are dimensionless. There is a symmetric massless phase $A$ with no chiral condensate and two chirally broken massive phases $B$ and $C$, the latter being a phase with a nonzero matter density $\rho$, whereas $\rho =0$ in phase $B$. Massive phases $B$ and $C$ are spatially nonuniform when $H>0$. There is also a new phase $D$ with a strong condensate inhomogeneity (retaining the presence of DCDW in the $H\to 0$ limit). The phase transitions are first order. There is a crossover between phases $C$ and $D$ in a magnetic field strong enough; we have plotted the boundary between them with a dotted line in that region.Reuse & Permissions

Figure 2

The order parameters as functions of the magnetic field strength for various values of the chemical potential at zero temperature, and $G=6$. All quantities are dimensionless.Reuse & Permissions

Figure 3

The order parameters as functions of the chemical potential for various values of the magnetic field strength at zero temperature, and $G=6$. All quantities are dimensionless.Reuse & Permissions

Figure 4

Samples of the order parameter dependence on the external conditions at zero temperature, $G=3$. All quantities are dimensionless.Reuse & Permissions