论文标题
超级耦合的轻型胶水系统中的超快绝热通道
Ultrafast adiabatic passages in ultrastrongly coupled light-matter systems
论文作者
论文摘要
当所有模式都具有相同的频率$ω$时，我们已经获得了多模量子Rabi模型的解决方案，包括Dark状态$ | ϕ_k \ rangle $，至少$ k $ $（k = 1,2,3，\ ldots）$ photons。它们扩展到多Quipit情况，它们位于另一个黑暗状态$ \ vertψ\ rangle $的附近，最多可以在频谱中使用一个光子。利用此类解决方案的优势，我们通过$ \vertψ\ rangle $找到了线性和对称性保护的绝热段落，以快速生成任意的单光子$ m $ -mode $ w $ w $ w $ \ vert w_m \ vert w_m \ rangle $以完全相同的速度。当包括鲜明的变化时，绝热演化期间的有效最小能差将进一步扩大到$0.63Ω$，因此，可以以$ 1.55 \ times2πΩ^{ - 1} $ fidelity $ 99 \％$ 99 \％$ 99 \％$ $ m $ m $ m $ m $ M $ 1.55 \ times2πω^{ - 1} $以$ 1.55 \ times timess2πω^{ - 1} $的超级额定产生。这项工作揭示了在光结构系统中存在线性超快绝热段落的存在。
We have obtained the solutions of the multimode quantum Rabi model when all modes have identical frequencies $ω$, including dark states $|ϕ_K\rangle$ with at least $K$ $(K=1,2,3,\ldots)$ photons. Extended to the multiqubit case, they lie close to another dark state $\vert ψ\rangle$ with at most one photon in the spectrum. Taking advantages of such solutions, we find a linear and symmetry-protected adiabatic passage through $\vert ψ\rangle$ to fast generate arbitrary single-photon $M$-mode $W$ states $\vert W_M\rangle$ with exactly the same speed. The effective minimum energy gap during the adiabatic evolution is further enlarged to $0.63ω$ when Stark shifts are included, such that arbitrary $\vert W_M\rangle$ can be ultrafast generated in $1.55\times 2πω^{-1}$ with fidelity $99\%$, indepedent of $M$. This work reveals the existence of linear ultrafast adiabatic passages in light-matter systems.
