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For a 'real life' quantum computer, mere capability is not good enough. It also has to defy disturbances attempting to weaken its special powers. To succeed, the task has to be addressed on various levels.
Repetition is probably the simplest method of error control. If an experiment fails, repeat it, and do so until it eventually succeeds. Quantum mechanics gives leeway for alternative approaches.
A tighter limit on the half-life of a tellurium nucleus for 'neutrinoless double-beta decay' marks progress towards a better understanding of the ever-elusive neutrinos and the measurement of their mass.
The emergence of both complex and repeating patterns in a simple microfluidic circuit provides an ideal test-bed for studying self-organized complexity, without the need for exhaustive dynamic control over the parameters that influence complex behaviour.
Berry phases and hidden chiralities are thought to be behind some of the most exotic states in quantum magnets. Polarized neutron scattering unveils the influence of such behaviour on the dynamics of quantum systems.
