High-fidelity quantum state transfer through a dissipative quantum data bus
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High-fidelity quantum state transfer through a dissipative quantum data bus |
| Wen-Zhi Huang,Yu-Zhen He,Bing Chen |
| Figure 4. Plots of time evolution of the initial state $\left|{\rm{\Psi }}\left(t=0\right)\right\rangle =\left|A\right\rangle $. (a) The transfer fidelity as a function of total transfer time tmax for J1 = J2 = J0 (blue dashed line), and ${J}_{1}={J}_{2}=10{J}_{0}$ (red solid line). (b) Population transfer as a function of time obtained for ${J}_{1}={J}_{2}={J}_{0}$. The red, solid curve represents the probability of $\left|A\right\rangle $ on state $\left|{\rm{\Psi }}\left(t\right)\right\rangle $. The blue, dashed curve represents the probability of $\left|B\right\rangle $ on state $\left|{\rm{\Psi }}\left(t\right)\right\rangle $. The population on medium’s sites is shown as green, dotted curve. (c) The same as in (b), but for ${J}_{1}={J}_{2}=10{J}_{0}$. Both cases could achieve 100% quantum state transfer since the adiabatic condition is satisfied. The values of the chosen parameters are shown in the figure. |
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