It’s not looking good for objective collapse theories

As noted in the previous post, quantum mechanics is weird. If we try to have a realist understanding of what's happening, it forces bizarre choices about which aspects of common sense reality we throw under the buss. The central mystery is the wave function collapse. Quantum particles move like waves, mathematically described by the wave … Continue reading It’s not looking good for objective collapse theories

Carlo Rovelli’s Helgoland

I've posted a lot over the years on interpretations of quantum mechanics. My writing has tended to focus on comparing the big three: Copenhagen, pilot-wave, and many-worlds. But there are a lot of others. One that has been gaining converts among physicists and others is Carlo Rovelli's relational quantum mechanics (RQM) interpretation. This is an … Continue reading Carlo Rovelli’s Helgoland

The measurement problem, Copenhagen, pilot-wave, and many worlds

With quantum physics, we have a situation where a quantum object, such as a photon, electron, atom or similar scale entity, acts like a wave, spreading out in a superposition, until we look at it (by measuring it in some manner), then it behaves like a particle.  This is known as the measurement problem. Now, … Continue reading The measurement problem, Copenhagen, pilot-wave, and many worlds