What is a Demon Particle?

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About Demon Particle

The demon particle was first predicted by theoretical physicist David Pines in 1956.
Pines theorized that electrons passing through a solid would exhibit unique behaviors, and that these behaviors could lead to the formation of a new type of particle that he called a “demon particle.”
They are massless, chargeless, and transparent to light.
They are also able to form plasmons, which are collective units of electrons that behave like waves.
Plasmons are important in superconductivity, and the discovery of demon particles could lead to the development of new superconducting materials that operate at room temperature.

What is Superconductivity?

It is a phenomenon whereby a charge moves through a material without resistance.
In theory, this allows electrical energy to be transferred between two points with perfect efficiency, losing nothing to heat.
It was first discovered in 1911 by Dutch physicist Heike Kamerlingh Onnes when he observed the sudden drop in electrical resistance of mercury at extremely low temperatures.
Superconductivity is generally observed at very low temperatures, often close to absolute zero (0 Kelvin or -273.15°C).
Meissner-Ochsenfeld Effect:
- Superconductors expel magnetic fields from their interior when they enter the superconducting state.
- This effect, known as the Meissner-Ochsenfeld effect, causes the superconductor to repel magnetic fields, leading to the phenomenon of magnetic levitation.
- When a magnet is brought near a superconductor in its superconducting state, it will float above the superconductor due to this repulsion.

Q1)What is an Electron?

An electron is a subatomic particle that carries a negative electric charge. It is one of the fundamental particles that make up atoms, along with protons and neutrons. Electrons carry a fundamental electric charge, denoted as “e,” which is approximately equal to -1.602 x 10^-19 coulombs (C).Electrons have a very small mass compared to protons and neutrons. The mass of an electron is approximately 9.109 x 10^-31 kilograms (kg), making it about 1/1836 times the mass of a proton.

Source: Researchers unveil ‘demon particle’ that can lead to making superconductors