Hybrid architectures combining complementary quantum systems will be largely used in quantum technologies and the integration of different components is one of the key issues. Thanks to their long coherence times and the easy manipulation with microwave pulses, electron spins hold a potential for the realization of quantum memories. Here, we test diluted oxovanadium tetraphenyl porphyrin (VO(TPP)) as a prototypical molecular spin system for the Storage/Retrieval of microwave pulses when embedded into planar superconducting microwave resonators. We first investigate the efficiency of several pulse sequences in addressing the spins. The Carr-Purcell and the Uhrig Dynamical Decoupling enhance the memory time up to three times with three π pulses. We then successfully store and retrieve trains of up to 5 small pulses by using a single recovery pulse. These results demonstrate the memory capabilities of molecular spin ensembles when embedded into quantum circuits.

结合互补量子系统的混合体系结构将在量子技术中大量使用，而不同组件的集成是关键问题之一。由于其长的相干时间和容易的微波脉冲操纵，电子自旋为实现量子存储提供了潜力。在这里，我们测试了稀释的氧钒钒四苯基卟啉（VO（TPP））作为原型分子自旋系统，用于将微波脉冲嵌入平面超导微波谐振器中进行存储/检索。我们首先研究几种脉冲序列在解决自旋方面的效率。Carr-Purcell和Uhrig动态解耦将三个π的存储时间提高了三倍脉冲。然后，通过使用单个恢复脉冲，我们成功地存储和检索了多达5个小脉冲的序列。这些结果证明了当嵌入量子电路时分子自旋集合体的存储能力。