THE SCHRÖDINGER'S CAT

      Let's learn about the famous SCHRÖDINGER'S CAT.

Erwin Schrödinger was an Austrian-Irish physicist who is known for his contributions in the field of quantum mechanics. You have probably heard of the famous Schrödinger equation.

In 1935 Schrödinger devised this thought experiment during a discussion with Albert Einstein. 

The Schrödinger's Cat points out the problem with the Copenhagen interpretation of quantum mechanics.

In quantum mechanics there is a phenomenon called  quantum superposition,  that a system can exist in two different states simultaneously.

The experiment asks that when does a quantum system stop existing as a superposition of states and become one or the other?

If we simplify the experiment we can explain it as.

If you have a hypothetical cat name it as "Tommy"

And you find a large steel box with a random triggered bomb in it and you put our Tommy in the box. Note that the bomb is uninfluenced by our Tommy. Since the bomb is randomly triggered there is an equal chance to trigger and not to trigger.You can only know what happened when you open the box.

So for an observer until the box is opened Tommy remains dead or alive simultaneously inside the box and at the moment when the observer opens the box we can find is Tommy alive or not. 

That is

 A system which simultaneously existed in two states when observed collapses into a just one state.

The original by Schrödinger,

"One can even set up quite ridiculous cases. A cat is penned up in a steel chamber, along with the following device (which must be secured against direct interference by the cat): in a Geiger counter, there is a tiny bit of radioactive substance, so small, that perhaps in the course of the hour one of the atoms decays, but also, with equal probability, perhaps none; if it happens, the counter tube discharges and through a relay releases a hammer that shatters a small flask of hydrocyanic acid. If one has left this entire system to itself for an hour, one would say that the cat still lives if meanwhile no atom has decayed. The first atomic decay would have poisoned it. The psi-function of the entire system would express this by having in it the living and dead cat (pardon the expression) mixed or smeared out in equal parts.

It is typical of these cases that an indeterminacy originally restricted to the atomic domain becomes transformed into macroscopic indeterminacy, which can then be resolved by direct observation. That prevents us from so naïvely accepting as valid a "blurred model" for representing reality. In itself, it would not embody anything unclear or contradictory. There is a difference between a shaky or out-of-focus photograph and a snapshot of clouds and fog banks."

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