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Bangladeshi scientist Zahid Hasan’s new milestone in quantum physics

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Bangladeshi scientist Zahid Hasan's new milestone in quantum physics | A group of scientists led by M. Zahid Hasan, a Bangladeshi-origin American scientist, has recently reached a new milestone in quantum physics. They observed quantum effects using Aronov-Bohm interference at relatively high temperatures. Their research paper has been published in the 20 February 2024 issue of the world-renowned science journal Nature.

A group of scientists led by M. Zahid Hasan, a Bangladeshi-origin American scientist, has recently reached a new milestone in quantum physics. They observed quantum effects using Aronov-Bohm interference at relatively high temperatures. Their research paper has been published in the 20 February 2024 issue of the world-renowned science journal Nature.

According to this paper, Zahid Hasan and his team observed quantum effects using Aronov-Bohm interference in topological insulators of bismuth bromide hybrids. It will play a major role in developing various future technologies, such as high-speed, faster computers and ultra-secure communication systems. He and his team have observed quantum states so far only near absolute zero at relatively high temperatures. This has never been seen before. It can be said that, as a result, they have taken another step forward in the use of such materials in electrical devices.
Quantum states disappear in solid, liquid or gaseous states of matter at room temperature. As the temperature is lowered, the speed of the atoms inside the material slows down. At temperatures near absolute zero this speed becomes almost zero. As a result, they can be easily controlled, and various quantum effects can be observed. But researching at such a low temperature and creating materials for making devices for everyday use are not the same thing. So scientists had a long pursuit, if the quantum effect could be seen at room temperature or comparable altitude!

Bangladeshi scientist Zahid Hasan's new milestone in quantum physics | A group of scientists led by M. Zahid Hasan, a Bangladeshi-origin American scientist, has recently reached a new milestone in quantum physics. They observed quantum effects using Aronov-Bohm interference at relatively high temperatures. Their research paper has been published in the 20 February 2024 issue of the world-renowned science journal Nature.
Zahid Hasan

Zahid Hasan and his team achieved the impossible in 2022. His research appeared in the journal Nature Materials in October of that year. A group of scientists under his leadership observed the quantum Hall effect in topological insulators of bismuth bromide hybrids at room temperature. You can read Pradeep Dev’s article for details on this. In short, an insulator is a conductor of electricity. Such as plastic or rubber. However, topological insulators have a nonconducting interior, but a superconducting edge.

As mentioned earlier, recently Zahid Hasan and his team observed quantum effects using Aronov-Bohm interference in topological insulators of this bismuth bromide hybrid. The Aronov bomb effect is the effect of the electromagnetic field on electrically charged particles when both the electric field and the magnetic field are zero. The researchers used it to observe quantum effects in topological insulators of bismuth bromide alloys at comparable altitudes, showing they could have real-world applications. It is for this use that the research is being discussed so much.

In this study, Zahid Hasan’s team worked together with researchers from several institutions including the University of Zurich, The Beijing Institute of Technology. This is how the door of new possibilities has been opened.

Earlier, in 2014-15, he discovered a type of topological magnetism. Its name is magnetic weak semimetal.

Quantum computing requires maintaining the entanglement and quantum superposition properties. This requires materials that have quantum effects at room temperature or at high temperatures. Through these researches, Zahid Hasan is gradually moving us towards topological material-based quantum computing and future electrical technology.

Scientist Zahid Hasan has been working with topological materials for a long time. His research was previously detailed in Science Thought.

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