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The EU Integrated Project Qubit Applications (or QAP) is a partnership of 35 academic and industrial groups at the cutting edge of quantum information research. Initiated in 2005, QAP’s mission is to develop and implement novel applications for quantum information processing, and to explore theoretical concepts of quantum information. QAP partners have published over 600 papers in a variety of journals to date, including prestigious titles such as Nature, Science, Physical Review Letters, Nature Photonics among others. These papers mark a significant contribution to the worldwide effort to understand, control and utilize quantum systems, and reflect the diverse range of interests within the collaboration. [read more]

Research highlights

Multipartite Entanglement Among Single Spins in Diamond

In a recent Science paper, QAP researchers report on the generation of long lived entangled states at a single Nitrogen-Vacancy in diamond at room temperature. Entanglement among an electron and two adjacent nuclear spins of the 13C isotope were generated, with coupling via magnetic interaction. Quantum correlations persisted for millisecond timescales, making this a very promising candidate for future quantum information technologies. [read more]

Coherent Control of Decoherence

QAP researchers have found a way of protecting quantum systems against noise using adaptively ‘shaped’ pulses of laser light. Quantum systems are notoriously fragile as interactions with their surroundings disturb them – rather like an orchestra trying to stay in tune in a very noisy environment. In a recent Science paper, researchers at the University of Oxford report that they have found a way to prolong the life of a model quantum system. [read more]