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Archive for the ‘quantum physics’ category: Page 38

Sep 6, 2024

Researchers advance new class of quantum critical metal that could advance electronic devices

Posted by in categories: materials, quantum physics

A new study led by Rice University’s Qimiao Si has unveiled a new class of quantum critical metal, shedding light on the intricate interactions of electrons within quantum materials. Published in Physical Review Letters on Sept. 6, the research explores the effects of Kondo coupling and chiral spin liquids within specific lattice structures.

Sep 6, 2024

Quantum Computing for High-Energy Physics: State of the Art and Challenges

Posted by in categories: information science, particle physics, quantum physics, robotics/AI

Roadmap: Quantum algorithms and quantum machine learning could assist high-energy physics, ranging from studying neutrino oscillations to reconstructing particle trajectories in colliders.

Sep 6, 2024

Scientists Found Dark Electrons: a Secret Quantum State Hidden in Solid Matter

Posted by in categories: materials, quantum physics

Researchers have just found evidence of “dark electrons”—electrons you can’t see using spectroscopy—in solid materials.

Sep 6, 2024

Record 99.9% qubit fidelity achieved by prototype quantum processor

Posted by in categories: computing, quantum physics

The achievement marks a way toward “fault-tolerant” quantum computing as it achieved record-low error rates in prototype quantum computer. It’s also expected to lead to the development of more stable quantum computers.

IQM maintains that qubit relaxation time T1 of 0.964 +- 0.092 milliseconds and dephasing time T2 echo of 1.155 +- 0.188 milliseconds was demonstrated on a planar transmon qubit on a silicon chip fabricated in IQM´s own fabrication facilities.

The coherence times, characterized by the relaxation time T1 and the dephasing time T2 echo, are among the key metrics for assessing the performance of a single qubit, as they indicate how long quantum information can be stored in a physical qubit, according to the company.

Sep 6, 2024

Can Space and Time Exist as Two Shapes at Once? Mind-Bending Experiments Aim to Find Out

Posted by in categories: cosmology, quantum physics

Proposed experiments will search for signs that spacetime is quantum and can exist in a superposition of multiple shapes at once.

By Nick Huggett & Carlo Rovelli

There is a glaring gap in our knowledge of the physical world: none of our well-­established theories describe gravity’s quantum nature. Yet physicists expect that this quantum nature is essential for explaining extreme situations such as the very early universe and the deep interior of black holes. The need to understand it is called the problem of “quantum gravity.”

Sep 5, 2024

Radical quantum computing theory could lead to more powerful machines than previously imagined

Posted by in categories: computing, quantum physics

Scientists have just theorized how to connect quantum processors over vast distances to form a giant quantum computing network that acts as a single machine.

Sep 4, 2024

Entangled photon pairs enable hidden image encoding

Posted by in categories: nanotechnology, quantum physics

Researchers at the Paris Institute of Nanoscience at Sorbonne University have developed a new method to encode images into the quantum correlations of photon pairs, making it invisible to conventional imaging techniques. The study is published in the journal Physical Review Letters.

Sep 4, 2024

Quantum error correction research reveals fundamental insights into quantum systems

Posted by in categories: computing, quantum physics

As scientists and researchers increasingly look to quantum computing to aid in complex problem-solving and advance our understanding of the universe—quantum error correction has become a critical area of scientific inquiry.

Sep 4, 2024

Panprotopsychism: Panpsychism

Posted by in categories: neuroscience, particle physics, quantum physics

, while an interesting thought experiment, does not seem to account for the fact that many phenomena are materialistic or physical enough to have no resemblance with the qualities we typically attribute to consciousness, such as experience and motive.

Panprotopsychism, by contrast, does not require matter to be intrinsically conscious, only that it be comprised of features equaling consciousness when combined.

Continue reading “Panprotopsychism: Panpsychism” »

Sep 4, 2024

Physicists Are Pretty Sure We Can Travel Faster Than the Speed of Light, Research Shows

Posted by in categories: mathematics, quantum physics

New research shows that the “superluminal observer” needs three separate time dimensions for a warp-speed math trick that would please even Galileo.

TL;DR

The concept of superluminal observers, proposed by Andrzej Dragan’s team, explores how faster-than-light travel might unify general relativity and quantum mechanics. By introducing three dimensions of time alongside one dimension of space, this research challenges our current understanding of the universe. Quantum phenomena, such as superposition and indeterminism, could be reinterpreted through the lens of a superluminal observer, where space and time swap roles at warp speeds. This theoretical framework suggests that the laws of physics remain consistent even at superluminal speeds, potentially paving the way for a unified field theory that reconciles these two fundamental branches of physics.

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