Quantum dynamics of electric-dipole coupled defect centers in solids
Feng Tang,Lei-Ming Zhou,Nan Zhao
Figure 6. (a) Couplings among the symmetry states in basis $\{| {s}_{i}\rangle \}$. Blue lines denote the energy difference between corresponding states. ${\bigtriangleup }_{1}={\omega }_{p}-{{\rm{\Omega }}}_{11}+{{\rm{\Omega }}}_{22}$ and ${\bigtriangleup }_{2}={\omega }_{p}-{{\rm{\Omega }}}_{33}+{{\rm{\Omega }}}_{11}$. The states $| {S}_{2}\rangle $ and $| {S}_{3}\rangle $ are degenerate. The red lines represent the associated coupling strength between two involved energy levels. The coupling between $| {S}_{1}\rangle $ and $| {S}_{4}\rangle $ is not drawn as in figure 5(b). Couplings among the symmetry states in basis $\{| S\rangle ,| A\rangle ,| {S}_{1}\rangle ,| {S}_{4}\rangle \}$. The energy level differences are △3 = ωp − Ω33 − Ω23 + Ω11 and △4 = 2ωp − Ω33 + Ω22.