'Meaning in life? Make it as bearable , enjoyable and good as possible!' A qualitative study among community-dwelling aged adults who receive home nursing in the Netherlands

The population of adults ageing in place and using home‐care services is growing rapidly worldwide. Meaning in life (MiL) of this group of clients is relevant for healthcare and social workers. MiL is associated with many positive outcomes, but can be challenging for aged persons. Objective of this study was to explore MiL in daily life of community‐dwelling aged persons who receive homecare. A hermeneutic phenomenological approach was followed. Three waves of semi‐structured interviews took place among 24 clients of a home‐care organisation in the Netherlands between November 2015 and July 2018. Photo‐elicitation was part of the interview procedure. Interpretative Phenomenological Analysis and dialogues enhanced understanding. Findings show that participants derived meaning from self, others, environment and living. The process of retaining MiL involved maintaining, adapting and discovering. We conclude that community‐dwelling aged adults can draw MiL from many sources. Retaining MiL is interwoven in everyday life and requires continuous adaptation to ever‐changing life conditions during later life. Although relevant general themes were sketched in this paper, the importance of each, and the connections between them, vary and come to light at the individual level. The themes in this paper and the cases in the appendices provide insights that may help professionals recognise MiL in their work. Besides listening to the stories of aged adults, person‐centred interventions should support aged adult's strategy to retain MiL

Photon-mediated interactions between quantum emitters in a diamond nanocavity

Photon-mediated interactions between quantum systems are essential for realizing quantum networks and scalable quantum information processing. We demonstrate such interactions between pairs of silicon-vacancy (SiV) color centers coupled to a diamond nanophotonic cavity. When the optical transitions of the two color centers are tuned into resonance, the coupling to the common cavity mode results in a coherent interaction between them, leading to spectrally-resolved superradiant and subradiant states. We use the electronic spin degrees of freedom of the SiV centers to control these optically-mediated interactions. Such controlled interactions will be crucial in developing cavity-mediated quantum gates between spin qubits and for realizing scalable quantum network nodes

Photon-mediated interactions between quantum emitters in a diamond nanocavity

Photon-mediated interactions between quantum systems are essential for realizing quantum networks and scalable quantum information processing. We demonstrate such interactions between pairs of silicon-vacancy (SiV) color centers coupled to a diamond nanophotonic cavity. When the optical transitions of the two color centers are tuned into resonance, the coupling to the common cavity mode results in a coherent interaction between them, leading to spectrally-resolved superradiant and subradiant states. We use the electronic spin degrees of freedom of the SiV centers to control these optically-mediated interactions. Such controlled interactions will be crucial in developing cavity-mediated quantum gates between spin qubits and for realizing scalable quantum network nodes

2022 Roadmap on integrated quantum photonics

AbstractIntegrated photonics will play a key role in quantum systems as they grow from few-qubit prototypes to tens of thousands of qubits. The underlying optical quantum technologies can only be realized through the integration of these components onto quantum photonic integrated circuits (QPICs) with accompanying electronics. In the last decade, remarkable advances in quantum photonic integration have enabled table-top experiments to be scaled down to prototype chips with improvements in efficiency, robustness, and key performance metrics. These advances have enabled integrated quantum photonic technologies combining up to 650 optical and electrical components onto a single chip that are capable of programmable quantum information processing, chip-to-chip networking, hybrid quantum system integration, and high-speed communications. In this roadmap article, we highlight the status, current and future challenges, and emerging technologies in several key research areas in integrated quantum photonics, including photonic platforms, quantum and classical light sources, quantum frequency conversion, integrated detectors, and applications in computing, communications, and sensing. With advances in materials, photonic design architectures, fabrication and integration processes, packaging, and testing and benchmarking, in the next decade we can expect a transition from single- and few-function prototypes to large-scale integration of multi-functional and reconfigurable devices that will have a transformative impact on quantum information science and engineering