Quantum Entanglement

•  What is Quantum Entanglement ?

In quantum physics, the entanglement of particles describes a relationship between their fundamental properties that can't have happened by chance.

Knowing something about one of these characteristics for one particle tells you something about the same characteristic for the other.

Think of a pair of gloves. If you found a right glove alone in your drawer, you can be certain the missing glove would fit your left hand. The two gloves could be described as entangled, as knowing something about one would tell you something important about the other that isn't a random feature.

Physicists, such as the famous Albert Einstein and Erwin Schrödinger, this was as preposterous as saying a cat inside a box is neither alive nor dead until you look.

Finally two physicists Boris Podolsky and Nathan Rosen collaborated with Einstein to come up with a thought experiment, where two objects interact in some way.

By measuring one of them, we might be able to work out some of its partner details without needing to measure it directly

• How Quantum Entanglement works ?

In quantum physics, entangled particles remain connected so that actions performed on one affect the other, even when separated by great distances.Albert Einstein called it "spooky action at a distance." 

The rules of quantum physics state that an unobserved photon exists in all possible states simultaneously but, when observed or measured, exhibits only one state. Spin is depicted here as an axis of rotation, but actual particles do not rotate.

Entanglement occurs when a pair of particles, such as photons, interact physically. A laser beam fired through a certain type of crystal can cause individual photons to be split into pairs of entangled photons. The photons can be separated by a large distance, hundreds of miles or even more. When observed, Photon A takes on an up-spin state. Entangled Photon B, though now far away, takes up a state relative to that of Photon A

The transfer of state between Photon A and Photon B takes place at a speed of at least 10,000 times the speed of light, possibly even instantaneously, regardless of distance.

A proposed experiment would send one photon of the entangled pair to the orbiting International Space Station, a distance of around 310 miles (500 kilometers). This would be the largest distance that has been experimentally tested.

• Conclusion 

In the next blog we'll be talking about " Wormholes ". Probably you would've seen wormholes in many movies and web series but let's dive deep into it in the my next blog. 

Do you think wormholes exists in universe ?