There is evidence that cannot be achieved 'absolute zero'.

To do that, we need "endless" but unfortunately that infinity is impossible.

In physics, we have an infinite limit of the speed of light : in theory, we cannot achieve the speed of light because we have to use an infinite amount of energy; The infinite limit is absolute zero (absolute zero - equal to 0 Kelvin, -273.15 ° C or -459.67 ° F): one must draw an infinite amount of energy out of the material so that it can reach coolness For, a temperature where matter no longer exists. These two endless things are impossible.

Below, we will talk about the endless limit of that cold. After 100 years of debate, physicists finally obtained a mathematical proof to prove the third law of thermodynamics, stating that absolute temperature 0 cannot be achieved with ordinary physics. Because a closed system cannot achieve a zero entropy point .

Absolute temperature 0 cannot be achieved with contemporary physics.

Scientists have long suspected that in this Universe, there is a "speed limit" that exists within the concept of physical cooling. It itself has prevented us from achieving absolute zero and this is the clearest evidence that our current laws of physics are still true when we reach the lowest possible temperature limit.

"We show that we cannot cool an arbitrary system to absolute zero with a limited amount of resources and from there, we go one step further," said one research team member. Lluis Masanes from the University of London said.

"Then we conclude that it is impossible to cool an arbitrary system to absolute zero for a limited time, and we establish the relationship between time and the lowest possible temperature. From that, it is possible to calculate the cooling speed of the object ".

What Masanes is talking about here are two main assumptions that the third law of thermodynamics is based on.

First , for a physical system to achieve absolute zero, the chaos of the system must reach zero. Second and also an impossible principle, that is, no system. Any system that can achieve chaotic zero is zero, so there is no absolute zero temperature.

In physics, we have an endless limit of speed of light.

The first law was introduced by German chemist Walther Nernst in 1906 and with it Nernst won the Nobel Prize in chemistry. However, well-known physicists like Albert Einstein and Max Planck are not convinced by the study, they themselves produce a cold-temperature limited version for their own Universe.

That led Nernst to continue to deepen his thinking, proposing the second law of thermodynamics in 1912, stating that temperature 0 is absolutely impossible physically.

Taken together, the above rules became the third law of thermodynamics and although it was still true, the foundation of the building principle, it was still the subject of debate for many years."Because the first debate regarding this issue focuses on a specific principle of operation or defect by other assumptions, some physicists do not think thermodynamics has a muscle. firm , " said Leah Crane from New Scientist.

To test how the third law of thermodynamics is really valuable in a classical physics system as well as quantum physics, Masanes and his colleague Jonathan Oppenheim decided to try it out. Math perspective, we can achieve absolute zero temperature with a certain amount of resources and in a limited time or not.

We can only achieve absolute zero temperature when there are endless number of steps taken and there is an endless source of energy.

Based on calculations through algorithms to reduce the temperature exists in matter, by pushing the temperature from within us the external environment. The initial temperature of a system determines the number of steps needed to push all of the heat inside them as well as the energy needed to do so.

By the main mathematical method, the information we obtained from quantum theory, Masanes and Oppenheim found that we can only achieve absolute zero temperature when there are endless number of steps taken and there is a source. endless energy. And with what we still know, "endless" is something that people cannot touch.

As mentioned above, this is what physicists have long suspected. Because according to the second law of thermodynamics, the heat will go one way from the hotter system to the colder system and therefore, the object you are trying to cool will still receive heat from the surrounding environment. it. And once there is heat in the system (albeit more or less), heat movement will still exist and some degree of entropy will still exist.

Since then, we have a famous statement, that no thing exists in the state of standing still - the third law of thermodynamics.

NASA's cold atomic laboratory, which has the coldest temperature in the universe, is near the absolute zero.

Researchers say that they "wish this study of mine can be a solid basis for the third law of thermodynamics", at the same time also represent the theoretical speed that we can cool. something. In other words, they use math to calculate the number of cooling steps, allowing researchers to set a cooling speed limit that a system can achieve in a limited time. .

Although we cannot reach absolute zero, we can get very close to it, making this milestone an important milestone. We are talking about NASA's Cold Atomic Laboratory preparing to be launched on the ISS space station by the middle of this year, a place with a cold temperature of about 0.00000000 kelvin - extremely close to absolute zero, for testing. unprecedented human physical properties.

"This study is extremely important, the third law of thermodynamics is one of the major problems of contemporary physics," said Professor Ronnie Kssloff at Jerusalem Jewish University, who is not part of the research team. above said.

"It involves thermodynamics, quantum mechanics and information theory - it is the intersection of various elements".