Coherence and quantum correlations have been identified as fundamental resources for quantum information tasks. As recently shown, these resources can be interconverted. In multipartite systems, entanglement represents a prominent case among quantum correlations, one which can be activated from coherence. All this makes coherence a key resource for securing the operational advantage of quantum technologies. When dealing with open systems, decoherence hinders full exploitation of quantum resources. Here, we present a protocol that allows reaching the maximal achievable amount of coherence in an open quantum system. By implementing our protocol, or suitable variants of it, coherence losses might be fully compensated, thereby leading to coherence revivals. We provide an experimental proof of principle of our protocol through its implementation with an all-optical setup.

中文翻译：

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非马尔可夫性导致开放量子系统中的相干性复兴

相干性和量子相关性已被确定为量子信息任务的基本资源。如最近所示，这些资源可以相互转换。在多方系统中，纠缠代表了量子相关性中的一个突出案例，可以从相干性中激活。所有这些都使得一致性成为确保量子技术运营优势的关键资源。在处理开放系统时，退相干阻碍了量子资源的充分利用。在这里，我们提出了一个协议，该协议允许在开放量子系统中达到最大可实现的相干量。通过实施我们的协议或它的适当变体，可能会完全补偿相干性损失，从而导致相干性恢复。