Researchers at the Federal University of ABC, in Brazil, have made a major breakthrough: they've confirmed that thermodynamic processes cannot be reversed, even in a quantum system. This revelation ...

In the loop: PhD student Monika Monika takes a closer look at the negative-temperature experimental setup in Jena. (Courtesy: Ira Winkler/University Jena) Researchers in Germany and the US have ...

Crystal clear: transmission electron microscope image showing a blob of amorphous calcium phosphate that is beginning to crystallize at the bottom left. (Courtesy: Antiope Lotsari/Chalmers University ...

(a) By keeping the temperature ratio between the hot and cold baths constant, varying the energy level spacing of the working substance allows the quantum engine to operate in different thermodynamic ...

In the strange, often unintuitive world of quantum physics, one mystery has stood out for decades: Can quantum entanglement be manipulated in a reversible way, like energy in a perfect heat engine?

The laws of thermodynamics, in principle, describe the specifics for the transport of heat and work in thermodynamic processes. Since their conception, however, these laws have become some of the most ...

In biophysics, the kinetic states of molecules play a determining role in the metabolic and physiological processes in which they take part. Now, a new article specifies for the first time the levels ...