quantum-field-theory

An artist’s illustration shows the layers of Earth’s interior, including the thick lower mantle. Credit: iStock.com/johan63

Physicists from Heinrich Heine University Düsseldorf (HHU) have examined a fundamental property of quantum mechanics in collaboration with the German Aerospace Center (DLR). In an article published in the journal Physical Review Letters, they show that this theory does not necessarily need to be formulated with imaginary numbers—real numbers can, in fact, also be used. […]

Nature Physics, Published online: 22 June 2026; doi:10.1038/s41567-026-03338-9 In a geometrical theory for the fractional quantum Hall effect, chiral spin-2 neutral excitations arise. Now, multiple such excitations are observed and provide evidence for the parton description of the quantum Hall effect.

Explore how Airbus and NESO leverage quantum technology for real-world applications in energy and aerodynamics. The post From quantum exploration to execution appeared first on Capgemini .

Nature Communications, Published online: 22 June 2026; doi:10.1038/s41467-026-74532-9 A tip-enhanced nano-optical trapping spectroscopy enables deterministic trapping and dynamic control of single quantum emitters, including reversible switching between weak and strong light-matter coupling regimes.

A machine learning-powered simulation is giving researchers a new window into the processes that create some of the universe’s heaviest elements. Where do the gold in jewelry, the uranium in nuclear fuel, and many of the universe’s heaviest elements come from? Scientists believe they are forged in some of the most violent events in the [...]

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Why Bohmian Mechanics, Go Programs, AI, and EBP 2.1 Could Help Reopen the Deepest Questions in Physics There is a quiet crisis in theoretical physics, and it has nothing to do with the equations. The equations are fine. Quantum mechanics predicts with staggering accuracy. General relativity bends light exactly as calculated. The Standard Model matches experiment after experiment. The mathematics …

Dear colleagues and theoretical physicists,I would like to introduce a localized dynamic precision numerical and functional analysis framework designed to evaluate continuous field equations without encountering standard machine-level rounding artifacts: so-hmns.To clarify its academic... Read more

In the preface to Scadron's Advanced Quantum Theory there is the statement: At the very least, serious readers should be able to calculate simple diagrams, lifetimes, and cross sections correctly-...

By probing the Universe on atomic scales and smaller, we can reveal the entirety of the Standard Model, and with it, the quantum Universe.

Researchers around the world are racing to develop new quantum-based systems for sensing, communication, computing, and control that have the promise of outperforming traditional systems. Creating stable, measurable, distinguishable quantum states, which would be the heart of any such system, is a daunting task. Quantum states possess unique properties that can be exploited for developing [&#8230…

A single transistor that behaves like a brain cell in the deep freeze could help unlock the next generation of quantum computers and space exploration systems.

Suppose you start with a bunch of uncorrelated qubits. This is called the “trivial product state”, state P. Now, you have a desired end state, state Q. There are 4 cases. You can either use a finite depth quantum circuit (FDQC) to change P to Q. Or, you can’t. You can also choose to use matrices (a quantum gate can represent a matrix) that commute with the symmetry group matrices of Q (called “en…

Researchers found that twisting layered sheets of hexagonal boron nitride can dramatically change the light produced by quantum emitters embedded within the material. The technique offers an unexpected new level of control over components that could power future quantum computers, communications systems, and sensors.

Physicists in China have observed five phases in localization physics within a single quantum system. Using an advanced photonic platform, the team, led by Yucheng Wang and Jingyun Fan at the Southern University of Science and Technology, Shenzhen, has demonstrated that localization physics is likely far richer than physicists anticipated. Their results have been published […]

In a paper published in Science Advances, researchers at the University of Technology Sydney (UTS) in collaboration with the University of Minnesota and Kyung Hee University have found a new way to control quantum light sources, which is one of the key elements needed before quantum technologies can be used reliably in real-world systems. Lead […]

Hi everyone, I'm an undergrad about to pursue a PhD, and I'm interested in quantum computing, QFT, quantum gravity, many-body physics, and philosophy.

The quantum world is mind-bogglingly counterintuitive: at the smallest scales, basic physical qualities like position...

What seems like bending the laws of physics is actually just using them to our advantage.