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Research

Studying heat transfer with supercomputers

“Our goal? To radically innovate numerical simulations in the field of thermal transport to take on the great science and technology issues in which this phenomenon is so central. This new study, which has designed a new method with which to analyse heat transfer data more efficiently and accurately, is an important step in this direction”. This is how Stefano Baroni describes this new research performed at Trieste’s SISSA by a group led by him, which has just been published in the Scientific Reports journal.

Laser beams for superconductivity

A laser pulse, a special material, an extraordinary property which appears inexplicably. These are the main elements that emerge from a research conducted by an international team, coordinated by Michele Fabrizio and comprising Andrea Nava and Erio Tosatti from SISSA, Claudio Giannetti from the Università Cattolica di Brescia and Antoine Georges of from the Collège de France. The results of their study have recently been published in the journal Nature Physics.

The nose reveals our relationship with emotions

Do you express your emotions? Are you able to name them, talk about them, relate to your feelings? If your answer is not an unqualified yes, you might be among the 10 percent of the healthy population who has difficulty processing the emotions they experience: a psychological condition known as alexithymia. An alexithymic individual has difficulty, to a greater or lesser degree, in relating to the sensations – ranging from joy to fear, from disgust to anger – which make up our experience.

How to move objects at the nanoscale

To move a nanoparticle on the surface of a graphene sheet, you won’t need a “nano-arm”: by applying a temperature difference at the ends of the membrane, the nanocluster laying on it will drift from the hot region to the cold one. In addition, contrary to the laws ruling the world at the macroscale, the force acting on the particle – the so-called thermophoretic force – should not decrease as the sheet length rises, sporting a so-called ballistic behavior.

Shedding light on Galaxies’ rotation secrets

The dichotomy concerns the so-called angular momentum (per unit mass), that in physics is a measure of size and rotation velocity. Spiral galaxies are found to be strongly rotating, with an angular momentum higher by a factor of about 5 than ellipticals. What is the origin of such a difference? An international research team investigated the issue in a study just published in The Astrophysical Journal. The team was led by SISSA Ph.D.

Laser Pulses Reveal Superconductors of the Future

Another step forward towards superconductivity at room temperature: an experiment at the cutting edge of condensed matter physics and materials science has revealed that the dream of more efficient energy usage can turn into reality. An international collaboration, led by the scientists of Italy’s International School for Advanced Studies (SISSA) in Trieste, Università Cattolica di Brescia and Politecnico di Milano used suitably tailored laser pulses to snap the electronic interactions in a compound containing copper, oxygen and bismuth.

It's the thought that counts

A sports person who has accidentally caused serious injury to a rival. A distracted driver who has caused an accident. Or a colleague who has involuntarily made a very serious error. Even outside the court room we have all been in situations in which we have had to express judgements on specific events on the basis of the seriousness of the incident but also on the intentions of those who caused them.

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