AI 中文总结
该研究探讨151 MeV三质子系统的自旋态隐形传态可行性，提出高能下需通过特定反应产生纠缠质子对，可实现极化转移并测试类EPR关联。
AI 中文摘要
我们讨论了能量为151 MeV的三质子系统中量子自旋态隐形传态的可行性，与低能情况类似，单个Bell态项主导质子-质子散射矩阵。我们发现，与低能区域不同，低能下未极化的质子-质子散射会产生强纠缠的出射质子对，而在高能下，必须通过完全末态相互作用运动学的排他质子-氘核破裂反应，产生一对能量各为151 MeV的未极化质子对。其中一个纠缠质子与极化氢靶的后续相互作用，与低能情况类似，会触发隐形传态过程，在此过程中，靶质子的极化会转移到纠缠对的第二个成员上，该过程发生在以实验室散射角45°为中心的强纠缠的极窄角区域内。我们还发现，将形成Bell态的强关联质子对中的一个成员从未极化氢靶散射，会导致散射质子的极化与未散射的第二个纠缠质子的极化之间出现类似爱因斯坦-波多尔斯基-罗森（EPR）的关联。散射质子的极化随其散射角变化，其极化的角依赖性与第一个质子的极化相同，这会在初始极化为零且动量保持不变的第二个质子成员中诱导出相同的极化，第二个质子的极化符号由Bell态中自旋关联的符号决定。
英文摘要
We discuss the feasibility of quantum spin-state teleportation in a three-proton system at an energy of 151 MeV, where, similarly to the low-energy case, a single Bell-state term dominates the proton-proton scattering matrix. We find that, in contrast to the low-energy regime, where unpolarized proton-proton scattering produces strongly entangled outgoing proton pairs, at higher energies a pair of protons, each with an energy of $151$~MeV, must be produced in an unpolarized, exclusive proton-deuteron breakup reaction under complete final-state-interaction kinematics. The subsequent interaction of one of the entangled protons with a polarized hydrogen target triggers, as in the low-energy case, the teleportation process, whereby the polarization of the target proton is transferred to the second member of the entangled pair within the very narrow angular region of strong entanglement centered around a laboratory scattering angle of $45^\circ$. We also find that scattering one member of a strongly correlated proton pair forming a Bell state from an unpolarized hydrogen target leads to Einstein-Podolsky-Rosen-like correlations between the polarization of the scattered proton and that of the unscattered second entangled proton. The polarization of the scattered proton varies with its scattering angle. An identical polarization, following the angular dependence of thepolarization of the first proton, is induced in the second member of the pair, whose initial polarization was zero and whose momentum remains unchanged. The sign of the polarization of the second proton is determined by the sign of the spin correlation in the Bell state.
Comments29 pages, 6 figures
