Skip to main content

Tiny quantum electronic

 




Within superconductors little tornadoes of electrons, known as quantum vortices, can occur which have important implications in superconducting applications such as quantum sensors. Now a new kind of superconducting vortex has been found, an international team of researchers reports.



Egor Babaev, professor at KTH Royal Institute of Technology in Stockholm, says the study revises the prevailing understanding of how electronic flow can occur in superconductors, based on work about quantum vortices that was recognized in the 2003 Nobel Prize award. The researchers at KTH, together with researchers from Stanford University, TD Lee Institute in Shanghai and AIST in Tsukuba, discovered that the  produced by vortices in a superconductor can be divided up into a wider range of values than thought.

That represents a new insight into the fundamentals of superconductivity, and also potentially can be applied in superconducting electronics.

A vortex of magnetic  happens when an  is applied to a superconductor. The  penetrates the superconductor in the form of quantized magnetic flux tubes which form vortices. Babaev says that originally research held that quantum vortices pass through superconductors each carrying one quantum of magnetic flux. But arbitrary fractions of quantum flux were not a possibility entertained in earlier theories of superconductivity.

Using the Superconducting Quantum Interference Device (SQUID) at Stanford University Babaev's co-authors, research scientist Yusuke Iguchi and Professor Kathryn A. Moler, showed at a  that quantum vortices can exist in a single electronic band. The team was able to create and move around these fractional quantum vortices, Moler says.

"Professor Babaev has been telling me for years that we could see something like this, but I didn't believe it until Dr. Iguchi actually saw it and conducted a number of detailed checks," she says.

The Stanford researchers found the initial observation of this phenomenon "so incredibly uncommon," says Iguchi, that they repeated the experiment 75 times in at various locations and temperatures.

The work confirms a prediction Babaev published 20 years ago, which held that in certain kinds of crystals, one part of an electron population of a superconducting material can form a clockwise circulating vortex, while other electrons can form a counter-clockwise vortex simultaneously. "These combined quantum tornadoes can carry an arbitrary fraction of flux quantum," he says.

"That revises of our understanding of quantum vortices in superconductors," he says.

Moler affirmed that conclusion. "I have been looking at vortices in novel  for over 25 years, and I have never seen this before," she says.

Babaev says that the robustness of quantum vortices and the possibility to control them suggests that quantum vortices could potentially be used as information carriers in superconducting computers.


International Research Conference on High Energy Physics
Submit Your Conference Abstract: https://x-i.me/hepcon
Submit Your Award Nomination: https://x-i.me/hepnom


 

Get Connected Here:
==================

                                                    tumblr : https://www.tumblr.com/blog/high-energy-physics  


Comments

Post a Comment

Popular posts from this blog

Freezing light? Italian scientists froze fastest thing in universe, here’s how

In a rare occurrence, physics made it possible to control the fastest travelling element - light. Italian scientists have managed to freeze the light, as per reports. A recent study published in a British weekly journal reportedly revealed that light can exhibit ‘ supersolid behavior ’ a unique state of matter that flows without friction while retaining a solid-like structure. The research, led by Antonio Gianfate from CNR Nanotec and Davide Nigro from the University of Pavia, marks a significant step in understanding supersolidity in light. The scientists described their findings as “just the beginning” of this exploration, as per reports. In what can be termed as ‘manipulating photons under controlled quantum conditions ’, the scientists demonstrated that light, too, can exhibit this behaviour. (A photon is a bundle of electromagnetic energy which is massless, and travel at the speed of light) How did scientists freeze light? As we know, freezing involves lowering a liquid’s tempera...
Post a Comment
Read more

new research in qauntum physics

         VISIT:https: //hep-conferences.sciencefather.com/          N ew research in  qauntum physics.                                                    Alphabet Has a Second, Secretive Quantum Computing Team Recent research in quantum physics includes the development of quantum computers, which are expected to be much more powerful than conventional computers and could revolutionize many aspects of technology, such as artificial intelligence and cryptography. Other research includes the development of quantum sensors for a variety of applications, including medical diagnostics, and the study of quantum entanglement and its potential to enable quantum computing and secure communication. Additionally, research is being conducted into the applications of quantum mechanics in materials science, such as unde...
Post a Comment
Read more

Physicists observe a new form of magnetism for the first time

MIT physicists have demonstrated a new form of magnetism that could one day be harnessed to build faster, denser, and less power-hungry " spintronic " memory chips. The new magnetic state is a mash-up of two main forms of magnetism: the ferromagnetism of everyday fridge magnets and compass needles, and antiferromagnetism, in which materials have magnetic properties at the microscale yet are not macroscopically magnetized. Now, the MIT team has demonstrated a new form of magnetism , termed "p-wave magnetism." Physicists have long observed that electrons of atoms in regular ferromagnets share the same orientation of "spin," like so many tiny compasses pointing in the same direction. This spin alignment generates a magnetic field, which gives a ferromagnet its inherent magnetism. Electrons belonging to magnetic atoms in an antiferromagnet also have spin, although these spins alternate, with electrons orbiting neighboring atoms aligning their spins antiparalle...
Post a Comment
Read more