Quantum

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: Physics, Electrons

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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, Physics

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Faster Technique For Resetting Quantum Circuits Proposed

Rebooting a quantum computer is a tricky process that can damage its parts, but now two RIKEN physicists have proposed a fast and controllable way to hit reset.

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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: Physics, Graphene

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Paradoxical Material A Mashup Of Three Different Phases At Once, Quantum Physicists Find

Materials that look like mosaics of triangular tiles at the atomic level sometimes have paradoxical properties, and quantum physicists have finally found out why.
Related topics: Physics

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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: Physics, Electrons, Semiconductors

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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: Physics, Semiconductors

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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: Physics

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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. Particularly intriguing are quantum phase transitions that occur at...
Related topics: Physics

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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: Physics, Electrons, Semiconductors

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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), Physics

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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: Physics, Mathematics

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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: Physics, Qubits

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Silicon-based Qubits Take A Big Leap Forward

Enlarge / A representation of the two phosphorus nuclei (Q1 and Q2) with the electron (Q3) that helps mediate their interactions. (credit: Tony Melov / UNSW) Over the last few years, the big question in quantum computing has shifted from...
Related topics: Qubits, Electrons, Physics

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How Sandia Labs Is 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.

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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: Physics, Laser

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Arduino Meets Quantum Computer

Quantum computers aren’t quite ready for the home lab, but since there are ways to connect to some over the Internet, you can experiment with them more easily than you might think. [Norbert] decided to interface a giant quantum computer to an...

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On The Tiniest Of Scales, Chemistry Isn't All About 'billiard-ball' Reactions

Scientists are now one step closer to better understanding how to live in a "quantum" world—and not just from watching the character "Ant-Man" in the Marvel movie franchise.
Related topics: Physics, Marvel

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Mini Electricity Generator Made From Quantum Dots

Machines and electronic devices often generate waste heat that is difficult to utilize. If electricity could be generated from this waste heat, it would offer a means for a clean and sustainable power production: Such a technology would be ideally...
Related topics: Physics

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The Quantum Field Theory On Which The Everyday World Supervenes

The laws of physics underlying everyday life are, at one level of description, completely known, and can be summarized in a single elegant—if quite complex—equation. That's the claim physicist Sean Carroll, an SFI Fractal Faculty member and...
Related topics: Physics

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