Physics

Quantum Dots Boost Perovskite Solar Cell Efficiency And Scalability

Scientists have boosted the efficiency and scalability of perovskite solar cells by replacing their electron-transport layers with a thin layer of quantum dots.
Related topics: Quantum, Electrons

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Study: Leidenfrost Effect Occurs In All Three Water Phases: Solid, Liquid, And Vapor

Slow-motion video of boiling ice, a research project of the Nature-Inspired Fluids and Interfaces Lab at Virginia Tech. Dash a few drops of water onto a very hot, sizzling skillet and they'll levitate, sliding around the pan with wild abandon....
Related topics: Science Videos

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Discovery Could Pave The Way To High Speed, Low-energy Quantum Computing

A semiconducting material that performed a quantum “flip” from a conductor to an insulator above room temperature has been developed at the University of Michigan. It potentially brings the world closer to a new generation of quantum devices and...
Related topics: Scientific Discoveries, Quantum

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Tracking Quantum Phenomena In 2d Graphene

In recent years, a phenomenon called the quantum Hall effect has emerged as a platform for hosting exotic features called quasiparticles, with properties that could lead to exciting applications in areas like quantum computing. When a strong...
Related topics: Quantum, Graphene

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Physicists Have Created “everlasting Bubbles”

The shell of a water/glycerol gas marble (bubble) remains liquid and spherical even after 101 days, and it reacts as a liquid film when punctured. These human-made bubbles could be used to create stable foams. (credit: A. Roux et al., 2022) ...

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Towards Compact Quantum Computers Thanks To Topology

Researchers at PSI have compared the electron distribution below the oxide layer of two semiconductors. The investigation is part of an effort to develop particularly stable quantum bits -- and thus, in turn, particularly efficient quantum computers.
Related topics: Quantum, Electrons, Semiconductors

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Research Demonstrates A New Technique For Improving Long-distance Quantum Key Distribution In A...

An experiment, performed by Istituto Nazionale di Ricerca Metrologica (INRIM) on 200 km of the Italian Quantum Backbone, in collaboration with Toshiba Europe, shows that coherent laser interferometry considerably improves the performances of quantum...
Related topics: Quantum, Toshiba, Laser

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Quantum Tech: Semiconductor 'flipped' To Insulator Above Room Temp

A semiconducting material that performed a quantum "flip" from a conductor to an insulator above room temperature has been developed at the University of Michigan. It potentially brings the world closer to a new generation of quantum devices and...
Related topics: Quantum, Semiconductors

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Towards Quantum Simulation Of False Vacuum Decay

Phase transitions are everywhere, ranging from water boiling to snowflakes melting, and from magnetic transitions in solids to cosmological phase transitions in the early universe.
Related topics: Quantum

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Nuclear Quantum Computing: It’s Coming

A trio of separate research teams from three different continents published individual papers indicating similar quantum computing breakthroughs yesterday. All three were funded in part by the US Army and each paper appears to be a slam dunk for the...
Related topics: Quantum

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Bobby Braun Leaving Jpl For Apl

NASA JPL Memo: Bobby Braun Departing JPL "Bobby Braun, Director for Planetary Science and Bren Professor of Aerospace at Caltech, has accepted the position of Space Exploration Sector Head of the Johns Hopkins Applied Physics Laboratory, and will...
Related topics: NASA, Space

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Edge Of Midnight: Scientists Unveil 2022 Doomsday Clock

The Doomsday Clock is a metaphorical assessment of the risk of our world's self-destruction at "midnight". Maintained since 1947, the clock was introduced in the American journal "The Bulletin of the Atomic Scientists" by physicists who'd worked on t

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Fujitsu Wants Technology To Shape A Better Future – Its Technology, Of Course

Quantum, HPC, and AI to take us to rainbow sunshine happy land Fujitsu wants to make the world a better place and thinks technology is the way to do it. Fujitsu technology, naturally.…
Related topics: Fujitsu (tech), Quantum

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Quantum Zeta Epiphany: Physicist Finds A New Approach To A $1 Million Mathematical Enigma

Numbers like π, e and φ often turn up in unexpected places in science and mathematics. Pascal's triangle and the Fibonacci sequence also seem inexplicably widespread in nature. Then there's the Riemann zeta function, a deceptively straightforward...
Related topics: Quantum, Mathematics

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For The First Time, Scientists Rigorously Calculate Three-particle Scattering From Theory

The goal of nuclear physics is to describe all matter from its simplest building blocks: quarks and gluons. Found deep inside protons and neutrons, quarks and gluons also combine in less common configurations to make other subatomic particles of...

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Scientists Achieve Key Elements For Fault-tolerant Quantum Computation In Silicon Spin Qubits

Researchers have achieved a key milestone toward the development of a fault-tolerant quantum computer. They were able to demonstrate a two-qubit gate fidelity of 99.5 percent -- higher than the 99 percent considered to be the threshold for building...
Related topics: Quantum, Qubits

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How France Is Becoming A Quantum Computing Power

Peter Suciu Technology, France The first nation to achieve quantum computing could have a significant advantage and France intends not to be left behind. A year ago French president Emmanuel Macron announced plans to provide a framework for his...
Related topics: Quantum, Emmanuel Macron

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Gate Set Tomography: How Physicists Are Revealing The Inner Workings Of Quantum Computers

A precision diagnostic developed at the Department of Energy's Sandia National Laboratories is emerging as a gold standard for detecting and describing problems inside quantum computing hardware.
Related topics: Quantum

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The Perfect Trap: A New Way To Control The Polarization Of Light

For quantum communication or optical computing it is important to measure and to influence in which direction a light wave is oscillating. It is now for the first time possible to manipulate this polarization of a continuous laser wave with a...
Related topics: Quantum, Laser

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Enhancing Simulations Of Curved Space With Qubits

One of the mind-bending ideas that physicists and mathematicians have come up with is that space itself—not just objects in space—can be curved. When space curves (as happens dramatically near a black hole), sizes and directions defy normal...
Related topics: Qubits, Mathematics, Black Holes

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