Tag Archives: materials science
Using disorder to reveal hidden objects
When light, sound or any kind of wave travels through a complex medium like fog, murky water, or biological tissue, it scatters in many directions. Each particle or irregularity in the medium changes the path of the waves, scrambling them … Continue reading
Posted in Scicomm
Tagged fingerprint operator, likelihood index, materials science, scattered light, scattering, speckle, ultrasound
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A tribute to rubidium
And to Paul Feyerabend Continue reading
Posted in Culture, Scicomm, Uncategorized
Tagged atomic clocks, Bose-Einstein condensate, condensed matter physics, materials science, Paul Feyerabend, rubidium, spectral lines
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A transistor for heat
Quantum technologies and the prospect of advanced, next-generation electronic devices have been maturing at an increasingly rapid pace. Both research groups and governments around the world are investing more attention in this domain. India for example mooted its National Quantum … Continue reading
Posted in Scicomm
Tagged electrical transistors, electrons, materials science, National Quantum Mission, negative differential thermal conductance, photons, quantum computers, quantum tunnelling, relaxation time, superconducting wires, thermal reservoirs, variable range hopping
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Tracking the Meissner effect under pressure
In the last two or three years, groups of scientists from around the world have made several claims that they had discovered a room-temperature superconductor. Many of these claims concerned high-pressure superconductors — materials that superconduct electricity at room temperature … Continue reading
Posted in Scicomm
Tagged diamond anvil cell, flux-pinning, magnetic field, materials science, Meissner effect, nitrogen vacancy centres, optical magnetometry, quantum spin, room-temperature superconductor, superconductivity
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Assorted comments: MOM, IIT Mandi, scientists’ wishes
These are some remarks that have been fermenting in my mind and for which I don’t have the time or the inclination to supply a beginning-middle-end structure to publish as individual posts. I’m just packing them into this one post … Continue reading
Posted in Analysis, Science
Tagged employment contracts, greenwashing, hydrogen peroxide, IIT Mandi, lingua franca, Mars Orbiter Mission, materials science, science and society
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A tale of vortices, skyrmions, paths and shapes
There are many types of superconductors. Some of them can be explained by an early theory of superconductivity called Bardeen-Cooper-Schrieffer (BCS) theory. In these materials, vibrations in the atomic lattice force the electrons in the material to overcome their mutual … Continue reading
Posted in Scicomm, Science
Tagged anyons, BCS theory, chiral magnets, condensed matter physics, David Thouless, Kosterlitz-Thouless transition, materials science, Nanyang Technical University, orbital angular momentum, p-wave superconductor, path dependency, phase transition, quantum computers, quasiparticles, Rashba-Edelstein effect, s-wave superconductor, skyrmion-vortex coupling, skyrmions, solid state physics, superconductors, supercurrent, topological excitations, topology, Vijay Shenoy
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