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Phase transitions are a familiar part of life, representing predictable paths by which solids turn to liquids, mixtures turn to solutions, magnets become nonmagnetic. Temperature plays a central role in driving many phase transitions, however there are others that don’t depend on temperature at all—such as instabilities in social networks, bird flocking, and even the process of visual recognition in humans. Phase transitions represent change that impacts all length scales from the tiniest to the global, becoming permanent on time scales from the shortest to the longest. Most enigmatic are phase transitions that happen only at zero temperature, driven by the intrinsic quantum mechanical nature of matter. How are these quantum phase transitions different from temperature driven phase transitions? What are the different phases that can be explored by quantum systems at zero temperature? Living as we do at nonzero temperature, can we experience quantum phenomena that occur at zero temperature? Phase transitions and the ways in which they pattern space and time are at the heart of our developing understanding of quantum matter.

Meigan Aronson is an experimental condensed matter physicist whose research centers on the discovery and exploration of quantum materials. She received her undergraduate degree from Bryn Mawr College, and her PhD in Physics from the University of Illinois at Urbana-Champaign. After a postdoc at Los Alamos National Laboratory, she enjoyed faculty positions at the University of Michigan and at Stony Brook University, where she was also a group leader at Brookhaven National Laboratory. Her research uses neutron scattering to study the emergence of new phases of matter, especially novel types of order that are only found near quantum phase transitions. She is a Fellow of the American Physical Society and the Neutron Scattering Society of America, and has received the Department of Defense National Security Science and Engineering Fellowship. She is currently a Professor in the Department of Physics and Astronomy and a Principal Investigator at the Stewart Blusson Quantum Matter Institute at The University of British Columbia, where she also served as Dean of the Faculty of Science.

This public lecture was recorded at Aspen Center for Physics on Wednesday, February 26, 2025. Thank you to the Nick and Maggie DeWolf Foundation for making our winter lecture series possible since 1985.

#quantumphasetransitions #spin #quantummechanics #neutronscattering #quantumphases #physics

Using the Frontier supercomputer, researchers have cracked a major challenge in nuclear physics: accurately predicting nuclear structure and forces at an unprecedented level of detail.

Their discoveries, including new insights into the shape-shifting nature of the 30-neon nucleus, could revolutionize scientific fields ranging from quantum mechanics to national security.

Revolutionizing Nuclear Predictions with Frontier.

A dataset used to train large language models (LLMs) has been found to contain nearly 12,000 live secrets, which allow for successful authentication.

The findings once again highlight how hard-coded credentials pose a severe security risk to users and organizations alike, not to mention compounding the problem when LLMs end up suggesting insecure coding practices to their users.

Truffle Security said it downloaded a December 2024 archive from Common Crawl, which maintains a free, open repository of web crawl data. The massive dataset contains over 250 billion pages spanning 18 years.

Researchers discovered 49,000 misconfigured and exposed Access Management Systems (AMS) across multiple industries and countries, which could compromise privacy and physical security in critical sectors.

Access Management Systems are security systems that control employee access to buildings, facilities, and restricted areas via biometrics, ID cards, or license plates.

Security researchers at Modat conducted a comprehensive investigation in early 2025 and discovered tens of thousands of internet-exposed AMS that were not correctly configured for secure authentication, allowing anyone to access them.

Chiral-structural-color materials produce color through microscopic structures that interact with light rather than through pigmentation or dyes. Some beetle exoskeletons, avian feathers, butterfly wings, and marine organisms feature these structures naturally, producing iridescent or polarization-dependent colors. Over the last 10–15 years, scientists have made progress in developing artificial chiral-structural-color materials.

Recently, Chinese researchers have made a breakthrough in the field by discovering that microdomes made from common polymers exhibit tunable chiral structural colors with broad-spectrum capabilities and multiple polarization-modulated chirality. This advancement could have significant implications for applications in displays, sensors, and .

Published in PNAS, the study was led by Prof. Li Mingzhu’s team from the Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences.

Chinese researchers have allegedly made a major breakthrough in Quantum Secure Direct Communication (QSDC). According to reports, the team has developed a new communication protocol that allows secure data transmission using quantum mechanics principles, setting a world record for transmission speed and distance.

In case you are unaware, QSDC is a type of quantum communication that directly transmits information in quantum states (such as photons) without needing encryption keys like traditional methods (e.g., quantum key distribution or QKD).

Hollywood star Brad Pitt recently opened SINTEF’s conference on digital security. Well, actually, no, he didn’t. “I cloned his voice in less than three minutes,” says Viggo Tellefsen Wivestad, researcher at SINTEF Digital.

Wivestad began his talk on with himself on video, but as Brad, with his characteristic sexy voice: “Deepfake. Scary stuff, right?” And that is precisely the researcher’s message.

Deepfake will become a growing threat to us as both private individuals and employees, and to society at large. The technology is still in its infancy. Artificial intelligence is opening up unimaginable opportunities and becoming harder and harder to detect.

Additionally, their ability to penetrate various materials without harmful radiation makes them valuable for security screening, quality control in industries, and chemical sensing. However, until now, it has been challenging to harness the potential of these waves in electronic devices due to several technological limitations.

Finally, a new study from researchers at MIT reveals a chip-based solution that can overcome these limitations and make terahertz waves more accessible than ever.

Terahertz (THz) waves are affected by the dielectric constant, a measure of how well a material can store and slow down an electric field. The lower this constant is the smoother terahertz waves can pass through a material.

A worldwide MASS BAN of DeepSeek AI has just begun, and the implications are shocking! Governments, corporations, and AI regulators are now cracking down on one of the fastest-growing AI models, sparking intense debates about AI safety, censorship, and control. But why is DeepSeek AI being banned, and what does this mean for the future of artificial intelligence?

In this video, we break down why countries are banning DeepSeek AI, the real reasons behind this massive restriction, and what this means for the AI industry and everyday users. Is this about security risks, misinformation, or something even bigger? And how will OpenAI, Google, and other tech giants respond to this sudden AI crackdown?

With the AI revolution accelerating faster than governments can regulate, this global ban on DeepSeek could signal the beginning of tighter AI control worldwide. But is this about protecting people—or protecting power? Watch till the end to find out!

Why is DeepSeek AI being banned? What does this mean for the future of AI? Is this the start of global AI censorship? This video will answer all these questions and more—so don’t miss it!

#ai.
#artificialintelligence.
#deepseek.

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