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Jan 23, 2024

Researchers find new multiphoton effect within quantum interference of light

Posted by in category: quantum physics

An international team of researchers from Leibniz University Hannover (Germany) and the University of Strathclyde in Glasgow (United Kingdom) has disproved a previously held assumption about the impact of multiphoton components in interference effects of thermal fields (e.g., sunlight) and parametric single photons (generated in non-linear crystals). The journal Physical Review Letters has published the team’s research.

“We experimentally proved that the interference effect between thermal light and parametric single photons also leads to with the background field. For this reason, the background cannot simply be neglected and subtracted from calculations, as has been the case up to now,” says Prof. Dr. Michael Kues, Head of the Institute of Photonics and member of the Board of the PhoenixD Cluster of Excellence at Leibniz University Hannover.

The leading scientist was Ph.D. student Anahita Khodadad Kashi, who performs research on photonic quantum information processing at the Institute of Photonics. She investigated how the visibility of the so-called Hong-Ou-Mandel effect, a quantum , is affected by multiphoton contamination.

Jan 23, 2024

Motion of satellite galaxies suggests younger universe

Posted by in category: space

In standard cosmological models, the formation of cosmological structures begins with the emergence of small structures, which subsequently undergo hierarchical merging, leading to the formation of larger systems. As the universe ages, massive galaxy groups and clusters, being the largest systems, tend to increase in mass and reach a more dynamically relaxed state.

The motions of galaxies around these groups and clusters provide valuable insights into their assembly status. The observations of such motion offer crucial clues about the .

By using public data from the Sloan Digital Sky Survey (SDSS), a research team led by Prof. Guo Qi from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) analyzed the kinematics of satellite pairs around massive galaxy groups. The team’s findings suggest that the may be younger than predicted by the LCDM model with Planck cosmological parameters.

Jan 23, 2024

New Superconductor With Highest Critical Current for Its Type of Superconductor

Posted by in categories: chemistry, particle physics

A research team from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS), discovered a new superconducting material called (InSe2)xNbSe2, which possesses a unique lattice structure. The superconducting transition temperature of this material reaches 11.6 K, making it the transition metal sulfide superconductor with the highest transition temperature under ambient pressure.

TMD materials have received lots of attention due to the numerous applications in the fields of catalysis, energy storage, and integrated circuit. However, the relatively low superconducting transition temperatures of TMD superconductors have limited their potential use.

In this study, scientists successfully fabricated a new superconducting material with the chemical formula (InSe2)xNbSe2. Unlike the conventional conditions where isolated atoms are inserted into the van de Waals gaps of low dimensional materials, in (InSe2)xNbSe2 the intercalated indium atoms were found to form InSe2-bonded chains.

Jan 23, 2024

Chinese Breakthrough: Revolutionary Superconducting Material With Record-Breaking Properties

Posted by in categories: chemistry, materials

A breakthrough discovery of a new superconducting material sets a new record for transition metal sulfide superconductors with a transition temperature of 11.6 K and a high critical current density, marking a significant advancement in superconductor development.

With the support of electrical transport and magnetic measurement systems of Steady High Magnetic Field Facility (SHMFF), a research team from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS), discovered a new superconducting material called (InSe2)xNbSe2, which possesses a unique lattice structure. The superconducting transition temperature of this material reaches 11.6 K, making it the transition metal sulfide superconductor with the highest transition temperature under ambient pressure.

The results were published in the Journal of the American Chemical Society.

Jan 23, 2024

New Delft Blue archways wrapped in 3,000 unique 3D-printed ceramic tiles

Posted by in categories: 3D printing, habitats, information science

Architecture practice Studio RAP has combined algorithmic design and 3D printing to create a pair of archways informed by Delft Blue porcelain at the PoortMeesters housing in the Netherlands.

Named New Delft Blue, the archways were designed to frame entrances to a courtyard garden at the centre of the housing development in Delft designed by The Hague-based VY Architects.

They were constructed using 3,000 unique tiles that were 3D-printed and arranged in a pattern determined by an algorithm created by Studio RAP.

Jan 23, 2024

Apple Vision Pro rate is up to 100Hz, it has Bluetooth 5.3, and more technical details

Posted by in category: computing

After half a year of knowing nothing technically about the Apple Vision Pro, Apple has spelled out many of the specs of the unit. Here’s what you need to know.

For Apple’s own reasons, it’s been reticent to detail the Apple Vision Pro. However, when the Apple Store came back up, there was a new technical specs page attached to the order page, and now on the company’s homepage.

Undisclosed at launch, there are three storage capacities. Apple Vision Pro headsets come in 256GB, 512GB, and 1TB storage configurations. At this time, it doesn’t appear that RAM quantities differ as they do in the iPad as storage configurations climb, as the spec sheet claims a universal 16GB of RAM across all units.

Jan 23, 2024

BYD’s new quad-motor electric sedan targets Taycan

Posted by in category: energy

With four electric motors each pumping out 240kW of power, BYD’s new Yangwang U7 is a powerful large sedan.

Jan 23, 2024

After 34 Years, Scientists Finally Made a Synthetic Material Nearly as Hard as Diamonds

Posted by in category: materials

Until now, this toughest type of carbon nitride was purely theoretical.

Jan 23, 2024

Free radicals don’t kill tardigrades — they’re the secret to the tiny critters’ invincibility

Posted by in category: futurism

Microscopic water bears can enter a near-invincible ‘tun’ state when stressed, enabling them to survive in the harshest conditions — including the vacuum of space. Now we know how.

Jan 23, 2024

Consciousness, AI and the Future of Humanity

Posted by in categories: futurism, robotics/AI

In this clip from our 2017 event titled ‘Evolution of the Mind, Consciousness and AI,’ the esteemed philosopher and cognitive scientist, Daniel Dennett is joined by a group of panellists to explore how much we understand about the human mind, and what the creation of artificial consciousness means for our future. Watch and let us know in the comments if you think Dennett’s theories still hold true in light of the rapid developments in AI since he joined us.

See the full session here: • Daniel Dennett on the Evolution of th…

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