论文标题
均衡对称性保护的束发射
Parity-Symmetry-Protected Bundle Emission
论文作者
论文摘要
我们证明了在超强耦合方面的腔QED系统中受对称的束发射。 Rabi模型的奇偶校验对称性仅允许在腔体中定期生成均匀的光子的超级拉比振荡，这是通过激光驱动的Qubit的翻转实现的，而Rabi相互作用引起的奇偶校验保守的过渡。结合耗散，仅允许2 $ n $ photon相关的排放，并且由于几乎完美地抑制了具有奇数相关光子的束发射的束发射，因此相应的纯度显着增强。偶数和奇数相关光子之间的捆绑发射的切换可以通过用增加的磁场来操纵系统的均衡对称性来控制。这项工作将多光子束发射扩展到Ultrastrong耦合方案，并提供了探索受对称保护的多Quanta物理物理学的前景。
We demonstrate symmetry protected bundle emission in the cavity QED system under the ultrastrong coupling regime. Parity symmetry of Rabi model only permits the super-Rabi oscillations with periodic generation of even photons in cavity, which is realized by the laser driven flip of qubit and the parity conserved transitions induced by Rabi interaction. Combined with dissipation, only 2$n$-photon correlated emissions are allowed, and the corresponding purities are significantly enhanced by the parity symmetry, due to the almost perfect suppression of bundle emissions with odd correlated photons. The switching of bundle emissions between even and odd correlated photons can be controlled by manipulating the parity symmetry of system with an added magnetic field. This work extends multi-photon bundle emission to the ultrastrong coupling regime, and offers the prospect of exploring symmetry-protected multi-quanta physics.
