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 1205 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.
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'Technologies that exploit
the unique weirdness of
quantum mechanics could
debut in the very near
future, thanks to the
groundbreaking work of a
huge European research
consortium'.
'A huge
consortium of European researchers is solving some of the
fundamental obstacles blocking real quantum computing
applications in the short term. At the same time, it is helping
to pave the way to a quantum computer'.
(ICT Results is an editorial service created for the
European Commission to showcase EU-funded ICT research and
activities.
A classical computer endowed with the power to
perform measurements on certain entangled many-body
states is strongly believed to be exponentially more
powerful than a classical machine alone. In a recent
Physical Review Letter, QAP researchers show that, quite
counter-intuitively, quantum states can be "too
entangled" to serve as computational resources for
measurement-based quantum computation.
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In a recent Physical Review Letter, two QAP
researchers derived monogamy relations (tradeoffs)
between strengths of violations of Bell’s inequalities
in any non-signalling theory. Their result applies to
general Bell inequalities with an arbitrary large number
of partners, outcomes, and measurement settings. The
method is simple, efficient, and does not require linear
programming. The results are used to derive optimal
fidelity for asymmetric cloning in nonsignaling
theories.
[read more]
