Quantum

Researchers at Tokyo Tech identify the quantum critical point in superconductors, solving a three-decade-old mystery and enhancing the understanding of superconductivity fluctuations. Credit: SciTechDaily.comThermoelectric effect reveals full picture of fluctuations in superconductivity.Weak fluctuations in superconductivity, a precursor phenomenon to superconductivity, have been successfully detected by a research group at Tokyo Institute of Technology (Tokyo Tech). This breakthrough was achieved by measuring the…

A schematic representation of quantum interference of the topological motion of electrons along the symmetry-allowed sample hinges. Credit: Shafayat Hossain, postdoctoral research associate in the Zahid Hasan group at Princeton UniversityNew research expands opportunities for advancements in quantum physics and spintronics.In a novel experiment, physicists have observed long-range quantum coherence effects due to Aharonov-Bohm interference in a topological insulator-based device. This finding opens up a new realm of…

As anyone who's ever seen a science fiction movie knows, whipping up a black hole in a laboratory doesn't seem like such a good idea. But that didn't stop researchers in England who wanted to see if they could create something in the lab that would serve as a black hole analog and give them greater insights into the way spacetime curves near the galactic gravity gobblers.So researchers from the University of Nottingham (UN), King's College London, and Newcastle University turned to vortices in fluids, which can, in some…

A superfluid vortex controlled in a lab is helping physicists learn more about the behavior of black holes.A whirlpool generated in helium cooled to just a fraction above absolute zero mimics the gravitational environment of these objects to such high precision that it's giving unprecedented insight into how they drag and warp the space-time around them. "Using superfluid helium has allowed us to study tiny surface waves in greater detail and accuracy than with our previous experiments in water," explains physicist…

Visualization of locating the optimal generator on a Bloch sphere. The color represents the QFI for the given generator. CreditSteven Burrows/Holland groupResearchers have revolutionized quantum sensing with an algorithm that simplifies the assessment of Quantum Fisher Information, thereby enhancing the precision and utility of quantum sensors in capturing minute phenomena.Quantum sensors help physicists understand the world better by measuring time passage, gravity fluctuations, and other effects at the tiniest scales.…

If you are looking for a TV under Rs 1,00,000, there are many options and a host of features you can expect from your TV. From local dimming to a native 120Hz panel with support for all HDMI 2.1 features, Rs 1,00,000 is the sweet spot for great features and performance. While we have seen OLED TVs available under Rs 1 lakh, such as the LG A2, it misses out on HDMI 2.1 support which could be a deal breaker if you are a gamer. Today, we have the 55-inch LG QNED83, which is an LED-backlit TV. The QNED in the name means that…

The biggest challenge in the development of the quantum computer consists of the magnetic and electrical noise that disturbs the quantum effect, and therefore the processor QPU (Quantum Processing Unit) is cooled down to the lowest possible temperature just above the absolute zero point of -273 degrees. This happens in the cryostat, which can be seen in the picture. The processor is located at the bottom of the cryostat. Credit: Ola J. Joensen, NBIScientists around the world work hard to rinse quantum systems for noise,…

Copper, platinum, aluminum, gold. Metals have been so important in human history that we’ve named historical epochs (the Bronze Age, the Iron Age) for their transformative power. These materials, with their characteristic ability to conduct electricity, are no less vital to our modern era—they are found in essentially every technology that has enabled the information age. Yet despite metals’ utility, scientists are still trying to decipher their inner workings.After centuries of study, physicists have a good understanding…

A photo of the atomic clock setup complete with the bisecting cavity. CreditJILA/Ye GroupJILA’s breakthrough in optical atomic clocks uses quantum entanglement to surpass fundamental precision limits, setting a new standard in timekeeping and opening avenues for scientific discovery.Historically, JILA (a joint institute established by the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder) has been a world leader in precision timekeeping using optical atomic clocks. These clocks…

Quantum computers have an almost mythical status among data scientists and researchers. The dream of emerging out of the NISQ (noisy intermediate-scale quantum) era into a world of fault-tolerant qubits generating unbreakable encryption or solving climate change keeps many startups going despite difficult investment propositions with longer return horizons. But quantum technologies don’t only inspire wonder and excitement — they are also a growing geopolitical concern. More and more countries…