The laws of physics are not to be democratic. They are not to satisfy opinions of majorities, but to rule imperially, regardless of our ignorance about their true forms. Intuitively enough, the laws of physics should be the same for everybody, regardless of where we are, when we are, or how we are. This was stated by Einstein in 1905 in his paper “On the Electrodynamics of Moving Bodies“, together with the claim that there is a maximum speed allowed in the universe, that of light.
What I’m about to tell you is not something new. These ideas have been around for many years already (since classical mechanics was still a thing). Moreover, I have been bothering my friends, students, teachers and some angry chemists with this for the last four or five years, ever since a student in San Luis Potosi made the mistake of saying the word “Hamiltonian” in front of me. This let another professor to reveal me one of the most guarded treasures for the physicist: the all-mighty Lagrangian.
Do I have any reader left?
After abandoning my blog for around a year and a half I felt the need to share something, but I was not sure what. In the last year and a half I discover such beautiful physics and math, but I was not sure what I wanted to share. Some months ago I finished my bachelor in Physics, so I decided to share one of the main reasons that convinced me to study this or, better said, one of the main problems: Here I present you:
Laser cooling of atoms
This one I wanted to do for a while. I like very much the math that can be derived from the Quantum Harmonic Oscillator, but there’s also a lot of stuff that I personally don’t like about the approach that is taken in some quantum physics books. I prefer a rather algebraic analysis of this system since I think that it is pretty much cleaner and easier to justify; then again I’m not pretending to be absolutely formal, just enough for it not to look like some kind of magic trick in the middle of the thing.