A better understanding of the control of coupled spins is essential for quantum based technologies like magnetic resonance imaging, magnetic resonance spectroscopy and future quantum computers. The video shows actual screen recordings of the free SpinDrops iphone app which provides intuitive and comprehensible access to the fascinating world of quantum control for anyone interested in the optimal control and utilization of quantum phenomena. The new DROPS representation maps the density matrix onto three-dimensional drop like objects. They reflect all quantum mechanical correlations between the spins at a given point in time. The examples shown in the video include spin rotations, precession, coherence transfer and multiple-quantum excitation.
The SpinDrops iPhone app allows students and scientists in physics, chemistry, biochemistry and medicine to explore and to better understand basic and advanced magnetic resonance experiments.The rich dynamics of up to three coupled spins can be interactively explored and is useful in science and teaching.
As part of Swansea University's annual National Science Week event, held on March 14, 2015, at the Waterfront Museum, we set up a table/display on the theme "All about spin: from magnets to magnetic resonance imaging to spintronics" where visitors could learn about magnetism, explore magnetic resonance via its analogy with accoustic resonance using a tone generator and guitar, and learn about magnetic resonance imaging.
A rnage of articles in English and German on quicker quantum computer boot-up:
Theoretical physicists at Saarland University have developed a method that enables quantum computers to be powered up and running stably in just five minutes – something that took six hours to achieve previously. This huge time reduction has been achieved by making use of mathematical models commonly deployed in engineering science. These findings are of major significance for those conducting experimental work on quantum computers. Up until now, researchers only had a short time window in which to carry out their experiments on a quantum processor before the sensitive settings were lost and hours had to be spent readjusting the system. Now, however, researchers can set up an experiment far more quickly and can experiment for much longer times. This work has been published in the journal Physical Review Letters. In the same issue of PRL, experimental physicists from the University of California in Santa Barbara have published a paper experimentally confirming the method proposed by the Saarbrücken team.
On the 5th of July 2014, Soapbox Science will join efforts with Swansea University to transform the magnificent expanse of Swansea Bay into a hub of scientific learning and discussion, as some of Wales’ leading female scientists take to their soapboxes to showcase science to the general public. The event’s mission remains the same: to help eliminate gender inequality in science by raising the profile, and challenging the public’s view, of women and science.