Category Physics

How Secure is your Wi-Fi Network? Research uncovers major vulnerability in wireless networking technology

How secure is your Wi-Fi network? Research uncovers major vulnerability in wireless networking technology
Picture and layout of the experimental testbed. Credit: How to BREAK MU-MIMO Precoding in IEEE 802.11 Wi-Fi Networks (2025)

We often take for granted just how ubiquitous Wi-Fi has become over the past two decades, explains Northeastern University electrical and computer engineering professor Francesco Restuccia, who is also a member of the Institute for the Wireless Internet of Things.

Wi-Fi provides wireless connectivity to more than 20 billion devices around the globe, including smartphones, laptops, game consoles, and smart TVs. And for most people, Wi-Fi works so smoothly it almost feels magical.

“It’s one of the most pervasive technologies ever invented by mankind,” Restuccia says. “We seamlessly utilize Wi-Fi every day without even knowing we are...

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Discovery of New Class of Particles could take Quantum Mechanics One Step Further

Discovery of new of particles could take quantum mechanics one step further
Excitonic pairing and fractional quantum Hall effect in quantum Hall bilayer. Credit: Naiyuan J. Zhang et al,

Amid the many mysteries of quantum physics, subatomic particles don’t always follow the rules of the physical world. They can exist in two places at once, pass through solid barriers and even communicate across vast distances instantaneously. These behaviors may seem impossible, but in the quantum realm, scientists are exploring an array of properties once thought impossible.

In a new study, physicists at Brown University have now observed a novel class of quantum particles called fractional excitons, which behave in unexpected ways and could significantly expand scientists’ understanding of the quantum realm.

“Our findings point toward an entirely new class of quantum pa...

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Helical Magnetic Fields: A Universal Mechanism for Jet Collimation?

Results of the Rotation Measure analysis in the HH80-81 jet. The left image shows the streamline image of the component of the magnetic field parallel to the plane of the sky. In the middle panel, the color scale of the RM indicates the direction of the magnetic field along the line of sight, i.e., red, away from the observer, and blue, towards the observer. The right panel shows a scheme depicting the 3D configuration of the magnetic field, exhibiting a helical topology.
Credit: Rodríguez-Kamenetzky et al. 2025, The Astrophysical Journal.

New observations from the National Science Foundation National Radio Astronomy Observatory’s (NSF NRAO) Karl G...

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Macroscopic Oscillators Move as One at the Quantum Level

A hexamer of macroscopic mechanical oscillators for studying quantum collective phenomena. Credit: Mahdi Chegnizadeh (EPFL)

Scientists have successfully achieved a quantum collective behavior of macroscopic mechanical oscillators, unlocking new possibilities in quantum technology.

Quantum technologies are radically transforming our understanding of the universe. One emerging technology are macroscopic mechanical oscillators, devices that are vital in quartz watches, mobile phones, and lasers used in telecommunications. In the quantum realm, macroscopic oscillators could enable ultra-sensitive sensors and components for quantum computing, opening new possibilities for innovation in various industries.

Controlling mechanical oscillators at the quantum level is essential for developing future technologies in quantum computing and ultra-precise sensing...

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