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Category: quantum physics – Page 34

Is Gravity the Hidden Key to Quantum Physics?

Leading physicist Raphael Bousso joins Brian Greene to explore the almost unreasonable capacity of our theories of gravity to give deep insights into quantum physics.

This program is part of the Big Ideas series, supported by the John Templeton Foundation.

Participant: Raphael Bousso.
Moderator: Brian Greene.

0:00:00 — Introduction.
00:01:12 Are there any cracks in Quantum Mechanics?
00:03:18 Bousso’s Case for Measurement-Driven Physics.
00:06:00 Does Quantum Mechanics Describe Reality?
00:09:37 How Decoherence Hides Quantum Weirdness.
00:15:05 Difference between Quantum and Classical Mechanics.
00:17:50 What Would Einstein Think of Modern Quantum Theory?
00:21:19 Entanglement’s Place in the Weird World of Quantum Theory.
00:26:45 Bousso’s Intuition for How Entanglement Works.
00:29:12 Einstein’s EPR Worries — What Do We Make of Them Now?
00:33:22 What Is a Singularity in a Black Hole?
00:38:06 How Oppenheimer and Snyder Modeled a Collapsing Star.
00:44:27 Insights Into Hawking Radiation — When Black Holes Began to Evaporate.
00:55:24 Gravity’s Quantum Secrets.
01:01:16 What Does Holography Say About Reality?
01:04:28 Rethinking How We Talk About Unification.
01:08:48 Bousso & Wall: The Quantum Focusing Conjecture.
01:14:33 From Theory to Test: Holography Gets Real.
01:19:34 The Value of String Theory Beyond Being ‘Right’
01:22:06 Penrose and the Proof That Singularities Are Real.
01:28:02 Hawking’s Theorem and the Rise of Singularities.
01:32:41 Is Gravity the Missing Piece in Quantum Theory?
01:39:07 How Bousso and Polchinski Rethought the Cosmological Constant.
01:51:10 Will the Universe Ever Give Up This Secret?
01:53:31 Credits.

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Emerging Tech Trends 2025

Please see my latest Security & Tech Insights newsletter. Thanks and have a great weekend!

Link.

Dear Friends & Colleagues, please refer to the latest issue of the Security & Tech Insights newsletter. In this issue, several articles highlight emerging tech trends for 2025. Some of these topics were also selected by Forrester’s research on emerging technologies in 2025, which highlights tech that will help drive AI-led innovation while enabling long-term resilience. Thanks for reading and stay safe! Chuck Brooks.

#artificialintelligence #quantum #robotics #emergingtech #tech #trends #space #security | on LinkedIn.

‘Qubits For Peace’: Researchers Warn Quantum Technology Is Deepening The Global Divide

Countries in the Global South risk being left out of the quantum revolution — along with its economic, technological and security benefits — due to growing export controls, siloed research initiatives and national security concerns, a new policy analysis argues.

In the first of a series of articles on quantum technologies published by the policy journal Just Securit y, researchers Michael Karanicolas, of Dalhousie University, and Alessia Zornetta, of UCLA Law, examine how the geopolitics of emerging quantum technologies are replicating long-standing patterns of technological exclusion. The authors argue that absent meaningful interventions, quantum could become another engine of global inequality, one that threatens to lock poorer nations out of the next era of technological and economic development.

The authors trace the roots of this divide to export control regimes that are quickly expanding in response to the strategic potential of quantum systems. Since 2020, governments in the U.S., EU and China have implemented targeted restrictions on quantum-enabling hardware, software, and communications systems.

MIT Achieves Critical Breakthrough That Brings Quantum Computing Closer to Practical Reality

For years, quantum computing has been the tech world’s version of “almost there”. But now, engineers at MIT have pulled off something that might change the game. They’ve made a critical leap in quantum error correction, bringing us one step closer to reliable, real-world quantum computers.

In a traditional computer, everything runs on bits —zeroes and ones that flip on and off like tiny digital switches. Quantum computers, on the other hand, use qubits. These are bizarre little things that can be both 0 and 1 at the same time, thanks to a quantum property called superposition. They’re also capable of entanglement, meaning one qubit can instantly influence another, even at a distance.

All this weirdness gives quantum computers enormous potential power. They could solve problems in seconds that might take today’s fastest supercomputers years. Think of it like having thousands of parallel universes doing your math homework at once. But there’s a catch.

Novel material design enables pure-red perovskite LEDs with record-breaking performance

A team from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has resolved a critical challenge in pure-red perovskite light-emitting diodes (PeLEDs) by identifying and addressing the root cause of efficiency loss at high brightness.

Published in Nature, their study introduces a novel material design that enables record-breaking device performance, achieving a peak external quantum efficiency (EQE) of 24.2% and a maximum luminance of 24,600 cd m-2 —the brightest pure-red PeLED reported to date.

Pure-red PeLEDs, crucial for vivid displays and lighting, have long faced a trade-off between efficiency and brightness. While 3D mixed-halide perovskites like CsPbI3-x Brx offer excellent charge transport, their efficiency plummets under high current due to unresolved carrier leakage.

Is Dark Energy Changing? Mysterious New Data Challenges Einstein’s Cosmological Constant

Recent findings from the Dark Energy Spectroscopic Instrument suggest the possibility of new physics that extends beyond the current standard model of cosmology. Using the lab’s new Aurora exascale computing system, the research team conducted high-resolution simulations of the universe’s evoluti

MIT Snaps Stunning First Photos of Atoms Interacting in Open Space

MIT scientists have snapped the first-ever images of individual atoms interacting freely in space, making visible the elusive quantum effects that govern their behavior. Using a unique technique that briefly traps atoms in place with a lattice of light, the researchers captured never-before-seen

Cracking the Quantum Mirror: Hidden Chirality Found in a Symmetrical Crystal

A Princeton team uncovered a surprising chiral quantum state in a supposedly non-chiral material, shedding light on elusive symmetry-breaking effects and opening doors to new quantum technologies. Chirality, the property of being different from one’s mirror image, has fascinated scientists in fie

The Rise of Self-Improving AI Agents: Will It Surpass OpenAI?

What happens when AI starts improving itself without human input? Self-improving AI agents are evolving faster than anyone predicted—rewriting their own code, learning from mistakes, and inching closer to surpassing giants like OpenAI. This isn’t science fiction; it’s the AI singularity’s opening act, and the stakes couldn’t be higher.

How do self-improving agents work? Unlike static models such as GPT-4, these systems use recursive self-improvement—analyzing their flaws, generating smarter algorithms, and iterating endlessly. Projects like AutoGPT and BabyAGI already demonstrate eerie autonomy, from debugging code to launching micro-businesses. We’ll dissect their architecture and compare them to OpenAI’s human-dependent models. Spoiler: The gap is narrowing fast.

Why is OpenAI sweating? While OpenAI focuses on safety and scalability, self-improving agents prioritize raw, exponential growth. Imagine an AI that optimizes itself 24/7, mastering quantum computing over a weekend or cracking protein folding in hours. But there’s a dark side: no “off switch,” biased self-modifications, and the risk of uncontrolled superintelligence.

Who will dominate the AI race? We’ll explore leaked research, ethical debates, and the critical question: Can OpenAI’s cautious approach outpace agents that learn to outthink their creators? Like, subscribe, and hit the bell—the future of AI is rewriting itself.

Can self-improving AI surpass OpenAI? What are autonomous AI agents? How dangerous is recursive AI? Will AI become uncontrollable? Can we stop self-improving AI? This video exposes the truth. Watch now—before the machines outpace us.

#ai.

Continue reading “The Rise of Self-Improving AI Agents: Will It Surpass OpenAI?” | >

Turning Non-Magnetic Materials Magnetic with Atomically Thin Films

The rules about magnetic order may need to be rewritten. Researchers have discovered that chromium selenide (Cr₂Se₃) — traditionally non-magnetic in bulk form — transforms into a magnetic material when reduced to atomically thin layers. This finding contradicts previous theoretical predictions, and opens new possibilities for spintronics applications. This could lead to faster, smaller, and more efficient electronic components for smartphones, data storage, and other essential technologies.

An international research team from Tohoku University, Université de Lorraine (Synchrotron SOLEIL), the National Synchrotron Radiation Research Center (NSRRC), High Energy Accelerator Research Organization, and National Institutes for Quantum Science and Technology successfully grew two-dimensional Cr₂Se₃ thin films on graphene using molecular beam epitaxy. By systematically reducing the thickness from three layers to one layer and analyzing them with high-brightness synchrotron X-rays, the team made a surprising discovery. This finding challenges conventional theoretical predictions that two-dimensional materials cannot maintain magnetic order.

“When we first observed the ferromagnetic behavior in these ultra-thin films, we were genuinely shocked,” explains Professor Takafumi Sato (WPI-AIMR, Tohoku University), the lead researcher. “Conventional theory told us this shouldn’t happen. What’s even more fascinating is that the thinner we made the films, the stronger the magnetic properties became—completely contrary to what we expected.”