We've learned a bit about quantum mechanics from a strictly conceptual and qualitative standpoint. But now it's time to dig a little deeper. Quantum mechanics is mathematics, so if we want to understand it on a fundamental level, we have...

The wave-particle duality seems to used all the time to explain quantum mechanics to the public, but it is one of my pet peeves. It represents an outmoded way of thinking (old quantum theory), which is replaced by our current...

We finally learn the rule of quantum mechanics responsible for a lot of the strangeness of the theory.

God does not play dice with the universe' Einstein famously argued. Yet contemporary physics embeds just such dice playing at the core of its account. Is the universe really unknowable even to itself? Or as Einstein implied is this...

How do you test quantum mechanics with ancient stars? A new experiment aims to close loopholes to the iconic "Quantum Bell Test", with new results published in Feb. 2017!

The proof and maths of Noethers theorem: There are two ways to approach Noethers theorem that I know of. The most common is through Lagrangian mechanics- where the proof is surprisingly simple but unfortunately quite opaque . The other...

Well be looking at Bells Theorem and what it actually says about whether Quantum Mechanics is true.

The EPR paradox tries to prove that quantum mechanics is wrong.

Quantum Harmonic Oscillator: Calculating Zero-Point Energy and Energy Spacing

The laws of physics get very, very weird in the realm of particles too small for the eye to see. Aboard the International Space Station, an experiment called the Cold Atom Laboratory (CAL) is exploring how the universe works .

Lesson 12 (Conservation of Momentum) of Dianna's Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this...

Contextuality might mean that there are no alternatives to Quantum mechanics that are sensible. Given Quantum isnt sensible either, there may just not be any sensible theories at all.

What is entanglement really? And why is it that its a uniquely quantum phenomena? Bohmian mechanics stuff: In Bohmian mechanics, you still have superpositions, they just mean something very different. A Bohmian mech particle only has one...

The act of measurement in quantum mechanics causes "collapse of the wavefunction". Here, I explain what is meant by measurement in the discipline of quantum mechanics.<br/>

This video mostly goes over two of the biggest classes and fields you learn about as a physics undergrad which is quantum physics and classical physics. I will be going over more classes (in less detail) and more...

Dave Wineland, NIST physicist and 2012 Nobel Laureate in Physics, discusses his landmark work developing laser cooling, a technique that has led to ultraprecise atomic timekeeping and advances in experimental quantum computing.

Quantum entanglement is a physical resource, like energy, that is possible between quantum systems. When a coin spins on a flat surface, it’s in a state of superposition between its two faces—head and tails. Similarly, electrons in their...