Describe Some Bec Examples.

Superfluids, like helium in liquid form at low temperatures, and superconductors, like neutron star nucleons, are two examples of BEC. Another state of matter, similar to solids but with less energy, is a Bose-Einstein condensate. Liquid helium served as the standard illustration of Bose-Einstein condensation for many years. The viscosity vanishes and the behavior of liquid helium changes from that of an ordinary liquid to that of a so-called superfluid.Helium is the first atom to create a Bose condensate in two phases, and scientists have now observed the condensation of a gas of helium in its metastable state.Superconductors and superfluids are two instances of substances that contain Bose-Einstein condensates. With almost no electrical resistance, superconductors can conduct electricity; once a current is started, it never stops. A superfluid’s liquid also flows indefinitely.When researchers cool down particles called bosons to extremely low temperatures, they produce the fifth form, the Bose-Einstein condensate (BEC), which was discovered in 1995. Cold bosons merge to form a single super-particle that’s more like a wave than an ordinary speck of matter.

How does BEC Class 9 work?

Bose-Einstein condensate (BEC) is a state of matter in which discrete atoms or subatomic particles, when cooled to nearly absolute zero (0 K, or 273. C or 459. F; K = kelvin), combine into a single quantum mechanical entity, or one that can be described by a wave function, on a scale that is close to that of a macromolecule. Bose-Einstein condensates (BECs), however, which researchers first produced in the lab 25 years ago, are a fifth state of matter. When a collection of atoms is cooled to almost absolute zero, they start to clump together and act like one giant super-atom.A diluted gas of bosons that has been cooled to temperatures very close to absolute zero (that is, very close to 0 K or? C) is said to have reached a state of matter known as a Bose-Einstein condensate (BEC). When a significant portion of bosons occupy the lowest quantum state, macroscopic quantum phenomena start to emerge.The fact that a large percentage of a BEC’s particles are in the same, or lowest, energy state, is its most obvious characteristic. The velocity distribution of the atoms in the gas can be measured in atomic condensates to confirm this. The outcome of such a measurement is depicted in the above figure.In condensed matter physics, a Bose–Einstein condensate (BEC) is a state of matter that is typically formed when a gas of bosons at very low densities is cooled to temperatures very close to absolute zero (−273. C or −459. F).Future electronics may benefit greatly from the development of superconductors, which are materials in which electricity flows without any resistance at all. For the first time ever, scientists and engineers at the University of Tokyo have been able to make a superconductor from a state of matter known as a Bose-Einstein condensate (BEC).

Who made BEC?

Satyendra Bose and Albert Einstein were the first to predict the BEC phenomenon: a group of identical Bose particles will collectively transition to the lowest energy state, or a BEC, when they come close enough to one another and move slowly enough. We can now study many-body physics and quantum statistical effects with the accuracy of atomic physics experiments thanks to the realization of BEC in dilute atomic gases, and it is exciting to see the quick advancement being made in exploring these new quantum gases.The classic example of Bose-Einstein condensation for many years was liquid helium. The viscosity vanishes and the behavior of liquid helium changes from that of an ordinary liquid to that of a so-called superfluid.A diluted gas of bosons that has been cooled to temperatures very close to absolute zero (that is, very close to 0 K or? C) is said to have reached a state of matter known as a Bose-Einstein condensate (BEC). When a significant portion of bosons occupy the lowest quantum state, macroscopic quantum phenomena start to emerge.Bose-Einstein Condensation of Photons Bosons tend to bunch together, and in extreme cases form a giant wave called a Bose-Einstein Condensate (BEC).

What benefits does BEC provide?

The extraordinary level of control and precision that is available with regard to not only the confining potential but also the strength of the interatomic interaction, their preparation, and the measurement of the atomic cloud is one of the main benefits of BEC-based devices. Additionally, BECs have been employed to develop highly sensitive magnetic, rotational, and gravitational sensors as well as atom clocks, atomic lasers, and sensors. In terms of the experimental techniques, making atomic BECs in the lab has become routine.Rubidium, sodium, and lithium were the three elements used to create BEC. Although all elements (except for beryllium) have stable bosonic isotopes, the alkali atoms were used because they can be very efficiently laser-cooled. Laser cooling was the first step toward attaining BEC in these atoms.BECs have also been used to create atom lasers, atomic clocks and gravitational, rotational or magnetic sensors with excellent sensitivity. In terms of the experimental techniques, making atomic BECs in the lab has become routine.Although all elements (except for beryllium) have stable bosonic isotopes, the alkali atoms were used because they can be very efficiently laser-cooled. Laser cooling was the first step toward attaining BEC in these atoms.