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Quantum light sources are fickle. They can flicker like stars in the night sky and can fade out like a dying flashlight. However, newly published research from the University of Oklahoma proves that adding a covering to one of these light sources, called a colloidal quantum dot, can cause them to shine without faltering, opening the door to new, affordable quantum possibilities. The findings are available in Nature Communications.

Quantum dots, or QDs, are so small that if you scaled up a single quantum dot to the size of a baseball, a baseball would be the size of the moon. QDs are used in a variety of products, from computer monitors and LEDs to and biomedical engineering devices. They are also used in and communication.

A research study led by OU Assistant Professor Yitong Dong demonstrates that adding a crystalized molecular layer to QDs made of perovskite neutralizes surface defects and stabilizes the surface lattices. Doing so prevents them from darkening or blinking.

A black hole is a place in space where the gravitational field is so strong that not even light can escape it. Astronomers classify black holes into three categories by size: miniature, stellar, and supermassive black holes. Miniature black holes could have a mass smaller than our Sun and supermassive black holes could have a mass equivalent to billions of our Sun.

In the late 1960s, physicists like Charles Misner proposed that the regions surrounding singularities—points of infinite density at the centers of black holes—might exhibit chaotic behavior, with space and time undergoing erratic contractions and expansions. This concept, termed the “Mixmaster universe,” suggested that an astronaut venturing into such a black hole would experience a tumultuous mixing of their body parts, akin to the action of a kitchen mixer.

S general theory of relativity, which describes the gravitational dynamics of black holes, employs complex mathematical formulations that intertwine multiple equations. Historically, researchers like Misner introduced simplifying assumptions to make these equations more tractable. However, even with these assumptions, the computational tools of the time were insufficient to fully explore the chaotic nature of these regions, leading to a decline in related research. + Recently, advancements in mathematical techniques and computational power have reignited interest in studying the chaotic environments near singularities. Physicists aim to validate the earlier approximations made by Misner and others, ensuring they accurately reflect the predictions of Einsteinian gravity. Moreover, by delving deeper into the extreme conditions near singularities, researchers hope to bridge the gap between general relativity and quantum mechanics, potentially leading to a unified theory of quantum gravity.

Understanding the intricate and chaotic space-time near black hole singularities not only challenges our current physical theories but also promises to shed light on the fundamental nature of space and time themselves.


Physicists hope that understanding the churning region near singularities might help them reconcile gravity and quantum mechanics.

Microsoft, after teaming up with the Defense Advanced Research Projects Agency (DARPA), last week unveiled a new chip that could fast-track the development of quantum computers and bring them into wider use within years instead of decades.

Microsoft has developed Majorana 1 – a breakthrough material known as a topoconductor – putting the tech giant on track to build the world’s first fault-tolerant prototype (FTP) of a scalable quantum computer within years – rather than decades.

That breakthrough came as part of the final phase of DARPA’s Underexplored Systems for Utility-Scale Quantum Computing (US2QC) program.

Have you ever questioned the deep nature of time? While some physicists argue that time is just an illusion, dismissing it outright contradicts our lived experience. In my latest work, Temporal Mechanics: D-Theory as a Critical Upgrade to Our Understanding of the Nature of Time (2025), I explore how time is deeply rooted in the computational nature of reality and information processing by conscious systems. This paper tackles why the “now” is all we have.

In the absence of observers, the cosmic arrow of time doesn’t exist. This statement is not merely philosophical; it is a profound implication of the problem of time in physics. In standard quantum mechanics, time is an external parameter, a backdrop against which events unfold. However, in quantum gravity and the Wheeler-DeWitt equation, the problem of time emerges because there is no preferred universal time variable—only a timeless wavefunction of the universe. The flow of time, as we experience it, arises not from any fundamental law but from the interaction between observers and the informational structure of reality.

In this fascinating exploration of cosmic mysteries, we delve into the question: Will the Big Bang happen again? Join us as we investigate the theories surrounding the universe’s origin, expansion, and potential future. We’ll cover concepts like the cyclic model, eternal inflation, and how quantum physics plays a role in the fate of the universe. Get ready for mind-bending theories and thought-provoking answers that could change your understanding of space and time! If you enjoyed this cosmic journey, please like and share the video with fellow space enthusiasts.

#BigBang #CosmicMysteries #Universe #Astronomy #SpaceExploration #TheoreticalPhysics.

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Compact sources of entangled photons are desired for quantum communication, computing, and cryptography. Here, the authors report high entangled photon pair generation rates in rhombohedral boron nitride, showing its potential as a tunable platform for Bell state generation.

This approach is not only faster and more energy-efficient but also delivers precise control over the material’s optical properties.

Light-Powered Quantum Dot Tuning

Researchers at north carolina state university.

Founded in 1887 and part of the University of North Carolina system, North Carolina State University (also referred to as NCSU, NC State, or just State) is a public land-grant research university in Raleigh, North Carolina. NC State offers a wide range of academic programs and disciplines, including the humanities, social sciences, natural sciences, engineering, business, and education. It is known for its strong programs in engineering, science, and technology and is a leader in research and innovation. It forms one of the corners of the Research Triangle together with Duke University in Durham and The University of North Carolina at Chapel Hill.

Scientists have found a new way to control quantum information using a special material, chromium sulfide bromide.

It can store and process data in multiple forms, but its magnetic properties are the real game-changer. By adjusting its magnetization, researchers can confine excitons—quantum particles that carry information—allowing for longer-lasting quantum states and new ways to process data.

Quantum “Miracle Material” Enables Magnetic Switching.

An early-career physicist mathematically connects timelike and spacelike form factors, opening the door to further insights into the inner workings of the strong force. A new lattice QCD calculation connects two seemingly disparate reactions involving the pion, the lightest particle governed by the strong interaction.

As an undergraduate student at Tecnológico de Monterrey in Mexico, Felipe Ortega-Gama worked at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility as part of the Science Undergraduate Laboratory Internships program. There, Ortega-Gama worked with Raúl Briceño, who was a jointly appointed staff scientist in the lab’s Center for Theoretical and Computational Physics (Theory Center) and professor at Old Dominion University.

Briceño introduced him to quantum chromodynamics (QCD), the theory that describes the strong interaction. This is the force that binds quarks and gluons together to form protons, neutrons and other particles generically called hadrons. Theorists use lattice QCD, a computational method for solving QCD, to make predictions based on this theory. These predictions are then used to help interpret the results of experiments involving hadrons.