Tag: Quantum

Introduction Euclidean geometry has been the foundation of our understanding of space for centuries. However, as our knowledge of the universe has expanded, it has become evident that Euclidean geometry is not sufficient to describe certain phenomena, particularly in the realm of quantum physics....

Conventional wisdom would say no — quantum mechanics washes out in large objects, and we macroscopic beings in the macroscopic world are not privy to the incredible quantum phenomena underpinning everything around us. However, like a lot of conventional wisdom, this is not entirely true. Quant...

The 19th and early 20th centuries were both the best of times and the worst of times for the building block of all the matter on Earth: the atom. In 1803, John Dalton put forth what we now know as modern atomic theory: the postulate that everything is made of indivisible atoms, where every...

Everybody loves quantum tunneling. It’s just cool. It would be like having a ball rolling towards a hill. Imagine that ball doesn’t have enough kinetic energy to make it over the hill and down to the other side. However, when you look for the ball — sometimes you can find it on the...

I have two friends, Alice and Bob. Soon they will be your friends. Since I’m a nice guy, I’m going to give each of them a gift. It’s nothing special — just a box with a couple of buttons and lights on it. The box I gave to Alice. When the left button is pressed, the...

In the quest to detect gravitational waves, there are a number of obstacles that — no matter how hard we try — continue to stand in our way. Since 2015, with the advent of first the advanced LIGO detectors and then later, the Virgo detector, humanity has directly detected gravitatio...

Quantum Field Theory (QFT) stands as one of the cornerstones of modern theoretical physics, providing a powerful framework for describing the dynamics of quantum systems at both the microscopic and cosmic scales. Developed to reconcile quantum mechanics with special relativity, QFT extends the princ...

Imagine that Alice is piloting a space ship light years away from Earth. Bob steers his space ship in the opposite direction, also light years away. Back on Earth, scientists prepare in a lab two particles from a single reaction, such as the decay of a pion. These particles are sent out into spac...