Figure 4 | Scientific Reports

Figure 4

From: A study of quantum Berezinskii–Kosterlitz–Thouless transition for parity-time symmetric quantum criticality

Figure 4

These figures show behaviour of RG flow lines, \(g_i\) with K for four different initial values of \(g_r (0) (0.05, 0.1, 0.15, 0.2)\) for the 3rd order RG process. The upper and the lower panels are respectively for the lower and higher values of \(g_r (0)\). We mark different regions of quantum phases by I, II. The magenta colour line represents the fixed line. Region I and II are respectively the superfluid and TLL phase.

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