Heat-free optical switch would enable optical quantum computing chips

In a potential boost for quantum computing and communication, a European research collaboration reported a new method of controlling and manipulating single photons without generating heat. The solution makes it possible to integrate optical switches and single-photon detectors in a single chip. …

Photon-photon polaritons: the intriguing particles that emerge when two photons couple

Scientists at the University of Bath in the UK have found a way to bind together two photons of different colors, paving the way for important advancements in quantum-electrodynamics—the field of science that describes how light and matter interact. In time, the team’s findings are likely to impact developments in optical and quantum communication, and precision measurements of frequency, time and…

Boston Dynamics Is Selling its 70-Pound Robot Dog To Police Departments

The New York Times reports on what the city’s police department calls Digidog, “a 70-pound robotic dog with a loping gait, cameras and lights affixed to its frame, and a two-way communication system that allows the officer maneuvering it remotely to see and hear what is happening.”
Police said the robot can see in the dark and assess how safe it is…

Cosmic ray originated in cataclysmic event

Astronomers found a high energy neutrino – a cosmic ray – that apparently originated during a “tidal disruption event,” that is, when a supermassive black hole shredded a distant star. Source: https://earthsky.org/space/origin-cosmic-ray-when-black-hole-shreds-star…

Researchers send entangled qubit states through a communication channel for the first time

In a breakthrough for quantum computing, University of Chicago researchers have sent entangled qubit states through a communication cable linking one quantum network node to a second node. …

Martin Scorsese Argues Streaming Algorithms Devalue Cinema into ‘Content’

In a new essay for Harper’s magazine, Martin Scorsese argues the art of cinema is being systematically devalued and demeaned by streaming services and their algorithms, “and reduced to its lowest common denominator, ‘content.'” “Content” became a business term for all moving images: a David Lean movie, a cat video, a Super Bowl commercial, a superhero sequel, a series episode. It…

Upheaval and extinctions linked to magnetic reversal 42,000 years ago

42,000 years ago, a breakdown in Earth’s magnetic field led to environmental catastrophes and mass extinctions. Source: https://earthsky.org/earth/magnetic-field-reversal-42000-years-ago-neanderthal-extinction…

Mount Etna erupts

Italy’s Mount Etna, one of the world’s most active volcanoes, has erupted twice in less than 48 hours, spewing a fountain of lava and ash into the sky. Source: https://earthsky.org/todays-image/mount-etna-erupts-feb2021…

Apple Hiring Engineers To Develop 6G Wireless

Apple launched its first iPhones with 5G wireless speeds a few months ago. Now it’s looking to start work on sixth-generation cellular connectivity, or 6G, indicating it wants to be a leader in the technology rather than relying on other companies. From a report: The Cupertino, California-based company this week posted job ads seeking wireless system research engineers for current and…