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What is Bose-Einstein condensate?

Bose-Einstein condensate

Matter can be found in various states of aggregation , among them we can find the solid, gaseous and liquid state, however, there are other types of states that are less well known, one of them is known by the name of Bose-Einstein condensate. , considered by many chemists, scientists and physicists as the fifth state of matter.

Bose-Einstein condensate |  What is it, characteristics, properties, applications 

What is Bose-Einstein condensate?

The condensate Bose-Einstein is a type of state of aggregation that may have the matter formed by a series of bosons super cooled reaching the absolute zero and where most of these bosons are in the state quantum lowest that can be achieved.

  • Characteristics of Bose-Einstein condensate
  • Who discovered it
  • History
  • Properties (edit)
  • Bose-Einstein condensate applications
  • Importance
  • Examples of Bose-Einstein condensate
  • Presence in popular culture

Characteristics of Bose-Einstein condensate

As mentioned previously, there are not only the three basic states of matter, liquid, solid and gaseous, on the contrary, there is a fourth and a fifth plasma and ionized states . The Bose-Einstein condensate is one of these states and has several features , among which the following are mentioned:

  • It is a state of aggregation composed of a series of bosons which are elementary particles.
  • It is considered as the fifth state of aggregation that the material can present.
  • It was first observed in the year 1995 , so it is quite new.
  • It has a condensation process that approaches absolute zero .
  • It has super fluidity which means that it has the ability of matter to eliminate friction.
  • It has super conductivity which is zero electrical resistance.
  • It is also known as a quantum ice cube .

Who discovered it

This state of matter was discovered by the physicists Albert Einstein and Satyendra Nath Bose , who previously managed to predict it in 1924. At that time, the theory presented two important difficulties, the first of which was related to the production of low temperatures that were near absolute zero , the second was related to the creation of gas in subatomic particles .

Thanks to two important advances that occurred in 1995, these advances were the following:

  • Physicists Cohen-Tannoudji , Steven Chu and William D. Phillips managed to discover laser light that was capable of attracting atoms when the speed of movement was slowed and, when it cooled them, temperatures that were very close to absolute zero were reached.
  • Physicists Eric A. Cornell and Carl Wieman who worked at the University of Colorado, managed to group a total of 2,000 individual atoms into a single group called a “super atom” which would become what was known as the Bose-Einstein condensate.

History

In 1920 , Albert Einstein and Satyendra Bose published a shared article that talked about photons of light and their properties . In this article, they described a series of rules that were able to determine whether two photons could be considered identical . They called this the “Bose-Einstein condensate . ” However, its existence could not be fully proven until a few years ago when a sample could be cooled to extremely low temperatures and with it, they were able to compare the equations.

In 1995 , Erick Cornell, Carlo Wieman and Wolfgang Ketterle managed to use several experimental techniques related to atomic physics and with this, they reached a temperature of 0 .00000002 degrees Kelvin exceeding absolute zero.

Properties

Bose-Einstein condensate is very similar to laser light and for this reason, they have the property of being able to behave in a uniform way . Its low-energy atoms can fuse together to form a mass that is characterized by being dense . Furthermore, because the velocity of the particles is very low, the interaction between them is also very weak .

Bose-Einstein condensate applications

This new state of matter has several applications, some of them are mentioned below:

  • It is used in the creation of nano structures that have great precision.
  • It is used to detect the intensity of the gravitational field .
  • It is used in the manufacture of atomic clocks that turn out to have greater and better precision and that are also much more stable.
  • With this state, it is possible to carry out a series of studies to determine cosmological phenomena .
  • Another of its applications is in the knowledge of quantum mechanics for the realization of complex experiments that have a non-linear character.

Importance

The importance of this condensate is based mainly on the fact that it makes it possible for its applications to be used in the field of quantum computing , in obtaining lasers that work by means of an atomic pulse and in the replacement of the photons that the cells possess. current lasers by atomic beams that turn out to be more uniform.

Examples of Bose-Einstein condensate

Some examples where the Boise-Einstein condensate has been put into practice are the following:

  • In superconductivity
  • Superfluidity
  • On the quantum effects of the optical macroscope
  • In slowing down the speed of light
  • In the precision of atomic clocks

Presence in popular culture

Currently, the Boise-Einstein condensate is under constant study . Many current scientists are focused on finding ways to use systems for processing quantum information . Many groups are working on obtaining different ways to start working with it, and to achieve separate atoms in some way, and then manipulate them to do simple quantum computing operations .

In addition, work is being done on the use of Bose condensates to simulate condensed matter systems . This in order to more easily create an ” optical lattice ” from an interference pattern of multiple laser beams in a solid. The great advantage of condensed systems and optical networks over real condensed matter systems is that they are easier to adjust.

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