Absolute Zero

Absolute Zero

The second rule is known as the unattainability principle, which states that absolute zero is physically unreachable because no system can reach zero entropy.

This explains why, no matter where you look, every single thing in the Universe is moving ever so slightly – nothing in existence is completely still according to the third law of thermodynamics.

[reference article below]

The Lord reigns, he is robed in majesty; the Lord is robed in majesty and is armed with strength. The world is firmly established; it cannot be moved.   (Psalm 93:1)

“We then conclude that it is impossible to cool a system to absolute zero in a finite time, and we established a relation between time and the lowest possible temperature. It’s the speed of cooling.”

enumclaw.com ~ opinion unto righteousness ~ timothy williams
Wednesday, March 15, 2017

Article Reference

(sciencealert.com)—In order to test how robust the assumptions of the third law of thermodynamics actually are in both classical and quantum systems, Masanes and his colleague Jonathan Oppenheim decided to test if it is mathematically possible to reach absolute zero when restricted to finite time and resources.

Masanes compares this act of cooling to computation – we can watch a computer solve an algorithm and record how long it takes, and in the same way, we can actually calculate how long it takes for a system to be cooled to its theoretical limit because of the steps required to remove its heat.

You can think of cooling as effectively ‘shovelling’ out the existing heat in a system and depositing it into the surrounding environment.

How much heat the system started with will determine how many steps it will take for you to shovel it all out, and the size of the ‘reservoir’ into which that heat is being deposited will also limit your cooling ability.

Using mathematical techniques derived from quantum information theory – something that Einstein had pushed for in his own formulations of the third law of thermodynamics – Masanes and Oppenheim found that you could only reach absolute zero if you had both infinite steps and an infinite reservoir.