论文标题
转化状态：最大产生原子相干性的光态
Transcoherent states: Optical states for maximal generation of atomic coherence
论文作者
论文摘要
量子技术建立在相干叠加的力量之上。原子相干性通常是由光学相干性产生的，通常是通过狂犬病振荡而产生的。但是，光线的一致性状态创造了不完美的资源； “ $ \tfracπ{2} $脉冲”的完全量化描述表明，生成的原子叠加仍然与光纠缠在一起。我们表明，有一些光的量子状态可以完美地产生相干的原子态，没有残留的原子场纠缠。这些状态可以任意短时间找到，并接近略有数字的$ \tfracπ{2} $脉冲，以大强度的极限；对于任何$（2K+1）\tfracπ{2} $脉冲都可以找到类似的理想状态，需要增加$ k $的数字。此外，这些状态可以反复用作“量子催化剂”，以成功产生具有很高概率的相干原子态。从这个角度来看，我们已经确定了比连贯状态“更连贯”的国家。
Quantum technologies are built on the power of coherent superposition. Atomic coherence is typically generated from optical coherence, most often via Rabi oscillations. However, canonical coherent states of light create imperfect resources; a fully-quantized description of "$\tfracπ{2}$ pulses" shows that the atomic superpositions generated remain entangled with the light. We show that there are quantum states of light that generate coherent atomic states perfectly, with no residual atom-field entanglement. These states can be found for arbitrarily short times and approach slightly-number-squeezed $\tfracπ{2}$ pulses in the limit of large intensities; similar ideal states can be found for any $(2k+1)\tfracπ{2}$ pulses, requiring more number squeezing with increasing $k$. Moreover, these states can be repeatedly used as "quantum catalysts" to successfully generate coherent atomic states with high probability. From this perspective we have identified states that are "more coherent" than coherent states.
