The European Union 3Plast research consortium plans to develop sensors that can be printed onto plastic film and attached to everyday objects. The sensors are being designed to respond to changes in temperature and pressure, which would enable them to detect the movement of a finger. “The sensor is combined with an organic transistor, which strengthens the sensor signal,” says project leader Gerhard Domann. Researchers have already printed sensors onto film, and are now optimizing transistors that can amplify changes in temperature and pressure. “By providing everyday objects with information about their environment–for example, whether a person is approaching–by means of pressure and temperature sensors, we can create and market new devices that can be controlled just by pointing a finger,” Domann says. It will likely take several years to print sensors on large surfaces, he says.
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Researchers at Harvard University and Australia’s University of Queensland have designed and constructed a quantum computer capable of simulating and calculating the behavior of a molecular quantum system. The two photons that function as qubits in a quantum device are entangled, meaning that their states are linked and consistent over distance, thus augmenting the quantum computer’s ability to explore all possible solutions to a complex problem at once. The researchers tasked the computer with calculating the energy levels of the hydrogen molecule. Through simulation of the quantum forces inherent in the electrons of atomic bonds themselves, the computer’s photons accurately nailed the energy levels to within 6 parts per million. This milestone is “great, a proof of principle, more evidence that [a quantum computer] is not pie in the sky or cannot be built,” says University of California, Berkeley professor Birgitta Whaley.
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