论文标题
旋转仪可观察的可观察到有效的光子量子误差校正
Spin-augmented observables for efficient photonic quantum error correction
论文作者
论文摘要
我们证明，微骨腔内固态发射剂的自旋状态可以用作综合征测量的测量量子。由于由此产生的圆形双发性双发性，光子充当数据量量位，与微腔中的自旋状态相互作用，系统的总状态有条件地发展。通过对自旋态进行量子非拆卸测量，可以获得光学态的综合征。此外，由于相互作用的对称性，我们可以选择采用光学状态作为测量量表。该协议可以适应各种资源要求，包括通过考虑纠缠量子量子位的数据量表和具有修改后连接性的代码之间的光谱差异。最后，我们表明，具有不同特征能量的自旋系统仍然可以与强耦合方案中高水平的保真度和对腔损失的耐受性纠缠。
We demonstrate that the spin state of solid-state emitters inside micropillar cavities can serve as measure qubits in syndrome measurements. The photons, acting as data qubits, interact with the spin state in the microcavity and the total state of the system evolves conditionally due to the resulting circular birefringence. By performing a quantum non-demolition measurement on the spin state, the syndrome of the optical state can be obtained. Furthermore, due to the symmetry of the interaction, we can alternatively choose to employ the optical states as measure qubits. This protocol can be adapted to various resource requirements, including spectral discrepancies between the data qubits and codes with modified connectivities, by considering entangled measure qubits. Finally, we show that spin-systems with dissimilar characteristic energies can still be entangled with high levels of fidelity and tolerance to cavity losses in the strong coupling regime.
