Figure 3 | Scientific Reports

Figure 3

From: Encoding scheme using quantum dots for single logical qubit information onto four-photon decoherence-free states

Figure 3

Details of the first gate (QD1) in Fig. 2. The sequential interactions between two photons (C and D) and an electron spin 1 in QD1 utilize the reflection operator \({\hat{\text{R}}}_{1}^{{{\text{Id}}}} \left( \omega \right)\) in Eq. 6 with a frequency of \(\omega - \omega_{c} = \kappa /2\). The prepared excess electron spin state is in the state \(\left| { +_{{\text{e}}} } \right\rangle_{1}\). This electron spin 1 is then measured after the interactions, in accordance with time table for switches (S1 and S2).

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