Figure 2 | Scientific Reports

Figure 2

From: Multistage entanglement swapping using superconducting qubits in the absence and presence of dissipative environment without Bell state measurement

Figure 2

Left plot: the time evolution of concurrence of qubits \((1,\,4)\) [C(t) in Eq. (11), solid green line] and [\(C^{\prime }(t)\) in Eq. (11), dashed black line] versus the scaled time \(\lambda t\) when the initial states of qubits pairs \((1,\,2)\), \((3,\,4)\) are as in Eq. (1). Right plot: the time evolution of concurrence of qubits \((1,\,8)\) [\(C_4(t,\tau )\) in Eq. (21), solid green line] and [\(C_{2}(t,\tau )\) in Eq. (21), dashed black line] versus the scaled time \(\lambda \tau \) with \(\lambda t=6\).

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