KSL

pure

disordered

gapless

gapped

vacancy

random bond

κ=0

\(\kappa \neq 0 \)

thermal metal phase

zero flux

thermal flux

ideal heat conductor \(D_{x} \neq 0\)

dissipative conductor \(D_{x} = 0, \, \kappa_{dc} \sim T^{0.92}\)

\(\kappa = 0\)

zero flux

thermal flux

ideal heat conductor \(D_{x} \neq 0\), but it is smaller than gapless phase

dissipative conductor \(D_{x} = 0, \,\kappa_{dc} \sim e^{-2.3/T}\)

\(\kappa = 0\)

bound flux

thermal flux

dissipative conductor \(lim_{L\rightarrow \infty}D_{x} = 0, \, \kappa_{dc} \neq 0\)

dissipative conductor \(D_{x} = 0, \kappa_{dc} \neq 0\)

\(\kappa = 0 \)

ground-state flux sector

zero flux

Future study (hint from SDRG?)

thermal flux