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Improved quantum processor logical error rates via correction and detection

Abstract Performing quantum algorithms for critical problems in physics and chemistry requires substantially lower error rates than the physical error rates of present quantum computers. Achieving such low logical error rates requires quantum error correction1,2 and physical error rates below a critical threshold value3,4,5,6,7,8. We experimentally demonstrate on a trapped-ion quantum charge-coupled device (QCCD)9,10 improvements in logical error rates ranging from 11× to 800× compared with...

Nature 17h ago

CBSE marking row pushes Bengaluru students towards Karnataka PU colleges

Concerns over evaluation errors in CBSE’s on-screen marking (OSM) system are prompting Class 11 students in Bengaluru to shift from CBSE schools to PU colleges. Parents and students fear lower scores in core subjects such as Physics, Chemistry, and Mathematics could affect professional course admissions, where board marks are considered alongside CET scores. School administrators report multiple withdrawals despite fee losses, while educators say the controversy is hurting CBSE admissions...

Times of India 1d ago

Scientists discover a quantum effect that could eliminate batteries

Scientists discover a quantum effect that could eliminate batteries - Date: - June 4, 2026 - Source: - Queensland University of Technology - Summary: - Researchers have discovered how microscopic imperfections and atomic vibrations can be used to control a powerful quantum effect in an advanced material. The effect can turn alternating electrical signals from the environment directly into the kind of current electronic devices need, without traditional components. As temperature changes, the...

Science Daily 6d ago

CBSE students demand grace marks, fee waiver over evaluation errors

Pune: Several CBSE Std XII students across the country have launched a coordinated demand for grace marks and a complete waiver of verification and re-evaluation fees, claiming that technical problems linked to the board’s new On-Screen Marking (OSM) system led to unusually low scores, unchecked answers and delayed access to answer sheets at a crucial stage of the admission season. The demand came as students applying for engineering, medical, commerce and overseas university programmes said...

Times of India 3d ago

Ranking college football's top 100 newcomers for t...

If the upcoming 2026 college football season is anything like its predecessor, transfer quarterbacks and top freshmen will be crucial for many College Football Playoff runs. And by now, with less than 100 days until the start of the season, we can assess rosters and what players did during spring practice with their new teams. While we have analyzed the top newcomer for each Power 4 team, these rankings are regardless of teams.

ESPN 8d ago

Physics tops complaints on CBSE Class XII grading

Pune: Photocopies of evaluated Std XII CBSE answer sheets that thousands of students have accessed for re-evaluation show that physics is their Achilles heel. The subject has drawn the maximum complaints. Aggrieved students across social media platforms, particularly X, have alleged missing marks, strict checking, uncredited step-marking and, in some cases, answer-sheet mismatches, raising fresh questions about the board’s evaluation process amid the ongoing On-Screen Marking (OSM) controversy.

Times of India 2d ago

Nice Guys Are Hot Again

Like Ernest Hemingway’s description of bankruptcy, Off Campus’s takeover of my phone happened gradually, then all at once. First came a single—extremely abashed—recommendation from a friend for Amazon’s eight-episode college romance about a star athlete and a music student, followed by what felt like a tsunami of endorsements from adult women far and wide, accompanied by GIFs, reels, images, and custom emoji, all featuring the Byronic hockey player Garrett Graham (played by Belmont Cameli)....

The Atlantic 6h ago

How India’s CBSE exam scandal set off student outrage against PM Modi

How India’s CBSE exam scandal set off student outrage against PM Modi India’s largest school board has been mired in controversies, prompting calls for Modi’s education minister to step down. Some students are leading the fight. New Delhi, India – Nandini Singh had been waiting for weeks for her high school examination results, her scores in different subjects being the pathway to the colleges of her choice.

Al Jazeera 6d ago

Cleaner recycling method unlocks reusable plastics from mixed packaging

Cleaner recycling method unlocks reusable plastics from mixed packaging Lisa Lock Scientific Editor Robert Egan Associate Editor Scientists from Nanyang Technological University, Singapore (NTU Singapore) have developed a new method to recycle mixed plastic packaging without using harmful chemical solvents—an approach that could make one of the world's most difficult waste streams significantly easier to handle. The research team from NTU Singapore's School of Materials Science and...

Phys.org 6d ago

Superintelligence: The Idea That Eats Smart People (2016)

This is the text version of a talk I gave on October 29, 2016, at Web Camp Zagreb [video] (45 mins) SuperintelligenceThe Idea That Eats Smart People | | | In 1945, as American physicists were preparing to test the atomic bomb, it occurred to someone to ask if such a test could set the atmosphere on fire. This was a legitimate concern.

Hacker News 8d ago