Author Archives: Daniel Fernández

<span property="name">Daniel Fernández</span>
Daniel Fernández completed his Ph.D. at the University of Barcelona. He has been a postdoc fellow at the Center for Theoretical Physics in Crete and at the Max Planck Institut for Physics in Munich. Currently, he is a research specialist at the University of Iceland. His research focuses on the gauge/string theory correspondence and its applications to high energy physics and condensed matter physics.

We started this series discussing the basic ingredients of the Universe: events, spacetime, causality. In the last chapter, we introduced massive objects (and thus, matter), which appear as a generalization of the so-called photon box.
As it moves, any […]

In the previous chapter of this series, we went over the subjective, relative separation of the network of events known as Spacetime into space and time. The speed of light played a major role in the discussion.
In particular, we […]

The division of past and future
In Part 1 of this series, we presented the empirical fact that under extreme circumstances, a certain observer’s past can be in another observer’s future. To explain this, we introduced the network of […]

Observations vs intuitions
Einstein’s Theory of Relativity introduced us to the concept of Spacetime, as a unified entity. This stands in contrast with the intuition that we develop since birth, which leads to naturally separate space and time.
Human intuition […]

Superconductors are a particularly strange kind of metal. What makes them different is their behavior at very low temperatures – extremely low, that is, close to absolute zero. Basic thermodynamics dictates that in this regime we should expect all motion […]