Cosmic voids and dark energy

Cosmic voids may cause dark energy, or at least provide an explanation for the Hubble tension. A team of Iranian scientists have proposed that dark energy may not be something inherent to space itself, but the result of cosmic voids, vast regions of the universe between galactic superclusters and filaments with relatively little matter.  Paul … Continue reading Cosmic voids and dark energy

Testing Everettian quantum mechanics

Neutron spin and associated magnetic dipole field lines.

The Everett theory of quantum mechanics is testable in ways most people don't realize. Before getting into how or why, I think it's important to deal with a long standing issue. Everettian theory is more commonly known as the "many worlds interpretation", a name I use myself all the time. But what's often lost in the discussion … Continue reading Testing Everettian quantum mechanics

Those inconvenient quantum interference patterns

Are quantum states and the overall wave function real? Or merely a useful prediction tool? The mystery of quantum mechanics is that quantum objects, like electrons and photons, seem to move like waves, until they're measured, then appear as localized particles. This is known as the measurement problem. The wave function is a mathematical tool for modeling, … Continue reading Those inconvenient quantum interference patterns