The energy levels of the electrons in a solid’s crystalline lattice determine whether it can generate light or not, for example as a light-emitting diode (LED).
Overcoming the pandemic induced slump and with the acceleration of the job market, Symbiosis Institute of Technology (SIT), Pune a constituent of Symbiosis International University, has been able to complete its placement drive for AY 2022 with renow
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IMAGE: In their experiments, the resesearchers used ultrathin crystals consisting of a single layer of atoms. These sheet was sandwiched between two layers of mirror-like materials. The whole structure acts like. view more
Credit: Johannes Michl
At extremely low temperatures, matter often behaves differently than in normal conditions. At temperatures only a few degrees above absolute zero (-273 degrees Celsius), physical particles may give up their independence and merge for a short time into a single object in which all the particles share the same properties. Such structures are known as Bose-Einstein Condensates, and they represent a special aggregate state of matter.
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IMAGE: The staff of the Uraltsev Spin Optics Laboratory at St Petersburg University in the corridor of the Twelve Collegia building (St Petersburg, Russia) view more
Credit: SPbU
The idea of creating quantum computers has long captured the minds of researchers and experts of IT corporations. They are the most powerful computers operating according to the laws of the quantum world and capable of solving many problems more efficiently than the most productive classical supercomputers. Similar developments are underway, for example, at Google and IBM. However, many such projects require the use of cryostats. These are vessels with liquid nitrogen or compressed helium, inside which quantum processors are cooled to temperatures below -270°C. Such a low temperature is required to maintain the superconductivity effect, which is necessary for the operation of quantum computers.