Quantum Physics: an overview of a weird world (Supplemental)

The property of material objects being 'solid' is not at all an obvious one. Electric and nuclear forces are at work.

Pauli's exclusion principle explains not only the periodic table of elements, but also the 'solidity' of matter.

The property of material objects being stable in time seems a silly question. But careful analysis reveals that this is a not at all obvious fact and that only the laws of quantum mechanics can furnish the right answer.

What happens when a charged particle is diffracted at the double slit in the presence of a magnetic field it does NOT travel through?

Why do particles, which are not subjected to external forces, move along a straight line? Richard's Feynman path integral formulation of quantum mechanics furnishes an unexpected answer.

The Quantum Zeno effect is a strange quantum property of the whereby, the time evolution of a quantum system can be suppressed by frequent measurements.

Introduction to the central aspects that Bell's theorem highlights.

A brief description how photons can be entangled.

Polarization correlation coefficients help us in describing how entangled photons appearing from two distant polarizers are correlated with each other.

Bell derived an inequality that deals with the polarization correlation coefficients between entangled particles that furnished an experimental testbed for quantum mechanics being a non-local theory.

The Mach-Zehender Interferometer (MZI) is the most used quantum optical device to investigate the principle of quantum mechanics and deserves a special lecture.

What if only a single photon at a time crosses the MZI? Would we still observe interference effects?

The attempt to force Nature to reveal us the information along which-way a particle went through the MZI will make the interference pattern disappear. Some thoughts on the supposed 'role of the observer in quantum mechanics' and its contextuality.

Quantum mechanics allows to make a measurement even without interacting and pertrurbing the object to be measures. Here is how...

What of we delay the choice to of observing the particle- or wave-like character while the photons are in flicgt inside the experimental device?

The experiment of X. Y. Zou, L. J. Wang, and L. Mandel makes it clear that our naive local and deterministic conceptions must be flawed. A fascinating experiment with particles which are entangled and in superposition.

It is possible to 'teleport' the quantum information of particles instantly light years away. Sounds sci-fi a la Star Trek, but is it?

Quantum physics allows, in principle, to build very special kind of computers. here we briefly take an overview what that means.

We briefly address how quantum cryptography works and make some conclusive remarks on the possible future of quantum computation.

Bohmian mechanics is one of the most cited interpretations of quantum mechanics. It saves determinism but is a non-local 'theory'. Particles have an independent ontology from the wavefunction.

A very brief (non exhausting) description of some of the interpretations of quantum mechanics: the many world, superdeterminism, objective collapse, time-symmetric and relational quantum mechanics interpretations.

Here I add some of my personal opinions on the proliferation of the interpretations of quantum mechanics.

This is a continuation of the lecture in course I (basics) on the relationship between quantum physics and philosophical idealism.

Further literature, academic advice, and some concluding remarks.

The first notions of elementary algebra, Pythagorean theorem, the Cartesian coordinate system, and the parallelogram law of vector addition.

A brief introduction on how functions can describe waves and its representation with complex numbers and complex functions.

How waves are added and the interference term appears, the notion of the derivative and differential and an elementary intuitive explanation of integration.

Momentum and kinetic energy must be carefully distinguished!