MAROKO133 Breaking ai: Entangled light slashes quantum measurement time from 20 million ye

📌 MAROKO133 Update ai: Entangled light slashes quantum measurement time from 20 mi

Amid growing hopes for quantum technology, scientists have demonstrated the first proven quantum advantage in a photonic system.

A new study shows how entangled light slashes the number of measurements needed to learn the noise of a quantum system.

Researchers at the Technical University of Denmark (DTU) led the work with partners from the US, Canada, and South Korea.

They used an optical setup that showed entangled light could identify the behaviour of a noisy quantum system far faster than classical approaches.

“This is the first proven quantum advantage for a photonic system,” said corresponding author Ulrik Lund Andersen, a professor at DTU Physics. “Knowing that such an advantage is possible with a straightforward optical setup should help others look for areas where this approach would pay off, such as sensing and machine learning.”

At the heart of the study lies a long-standing challenge. When scientists want to understand a physical device, they must repeat measurements to determine its “noise fingerprint.” For quantum devices, the problem intensifies.

Quantum noise is built into measurements, and the number of required trials grows exponentially as systems get larger.

“We built a process we could control and asked a simple question: Does entanglement reduce the number of measurements you need to learn such a system? And the answer is yes, by a lot,” said Andersen.

He added that the team learned the behaviour of their system in 15 minutes. A comparable classical method would take around 20 million years.

Simple but powerful setup

The experiment took place in the basement labs at DTU Physics. The team used standard optical parts running at telecom wavelengths.

Even with ordinary losses in the setup, the system worked. That, they noted, showed the advantage came from the measurement method, not from ideal equipment.

The setup relied on an optical channel where multiple light pulses shared the same noise pattern. Two beams of light were squeezed until they became entangled. One beam probed the system while the other served as reference.

A joint measurement compared them in a single shot, cancelling much of the noise and extracting more information per trial than classical approaches.

This demonstration is built on earlier theory. In 2024, the group had laid the mathematical groundwork in a paper titled ‘Entanglement-Enabled Advantage for Learning a Bosonic Random Displacement Channel.’

That work suggested entangled light would deliver the needed leap, which the current experiment confirmed.

A step for quantum technology

The researchers stress they have not yet targeted a specific real-world system. Still, the breakthrough confirms a long-sought goal for quantum physics.

“Even though a lot of people are talking about quantum technology and how they outperform classical computers, the fact remains that today, they don’t,” said co-author Jonas Schou Neergaard-Nielsen, associate professor at DTU Physics. “So, what satisfies us is primarily that we have finally found a quantum mechanical system that does something no classical system will ever be able to do.”

The study is published in the journal Science.

🔗 Sumber: interestingengineering.com

📌 MAROKO133 Eksklusif ai: Tesla Worker Knocked Unconscious by Robot, Lawsuit Claim

A robotics technician is suing Tesla, alleging he was struck and knocked unconscious by an “approximately 8,000-pound counterbalance weight” attached to a robotic arm at the company’s plant in Fremont, California.

According to a civil complaint obtained by The Independent, engineer Peter Hinterdobler was helping a colleague remove the robot’s motor during a planned disassembly on July 22, 2023.

But then, the “robot’s arm suddenly and without warning released with great force,” causing significant injuries.

Now, Hinterdobler is suing the Elon Musk-led company and robotics manufacturer FANUC, which built the robotic arm, after struggling to pay medical expenses. In total, he’s seeking $51 million in damages, including $20 million for “pain, suffering, and inconvenience” and $10 million for “emotional distress,” according to The Independent.

Hinterdobler is accusing Tesla of “failing to ensure that the robot was safely de-energized, secured, and stable before allowing [him] to assist with the disassembly process.”

The lawsuit is yet another example of the EV maker’s poor track record when it comes to working conditions, particularly concerning its Fremont plant.

Last month, a lawsuit filed by the factory’s former head of security alleged that his team “routinely” confiscated drugs and guns onsite and investigated “acts of sexual deviance.” Tesla has also been accused of allowing racism to run rampant at the factory.

Earlier this year, Tesla was fined for violating the state’s workplace heat protection rules, putting workers’ health at risk.

Hinterdobler’s lawsuit also follows a string of concerning injuries that have taken place at Tesla’s facilities.

For instance, in 2021, a worker alleged he was clawed by a robot at the company’s Gigafactory in Austin, Texas, leaving a “trail of blood” on the factory floor.

The California Division of Occupational Safety and Health also slapped the carmaker with four safety violations in 2023 after an employee at the Fremont factory was seriously injured when she got pinned inside a Model Y vehicle. According to a subsequent investigation, Tesla failed to ensure that power was cut to a conveyor belt while workers were performing quality inspections.

In April 2018, a worker at the same plant was hospitalized with a broken jaw after being hit by a piece of equipment that moves vehicles along the assembly lines.

And a man collapsed and died while working on a Fremont powertrain line in 2022 — a mere month after a Tesla employee shot and killed a coworker in the factory’s parking lot.

In short, Hinterdobler’s complaint shouldn’t come as much of a surprise, given the EV maker’s track record.

Tesla and FANUC have yet to respond to the engineer’s allegations.

More on the factory: Former Cop Says He Routinely Confiscated Guns, Fentanyl and Cocaine at Tesla Factory

The post Tesla Worker Knocked Unconscious by Robot, Lawsuit Claims appeared first on Futurism.

🔗 Sumber: futurism.com