Quantum computing tagged posts

Measuring a Tiny Quasiparticle is a major step forward for Semiconductor Technology

PL spectra of BN encapsulated monolayer WSe2 at 4.2 K. Credit: Nature Communications (2020). DOI: 10.1038/s41467-020-16934-x

A team of researchers led by Sufei Shi, an assistant professor of chemical and biological engineering at Rensselaer Polytechnic Institute, has uncovered new information about the mass of individual components that make up a promising quasiparticle, known as an exciton, that could play a critical role in future applications for quantum computing, improved memory storage, and more efficient energy conversion.

Published today in Nature Communications, the team’s work brings researchers one step closer to advancing the development of semiconductor devices by deepening their understanding of an atomically thin class of materials known as transitional metal dichal...

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Scientists ‘Teleport’ a Quantum Gate

This is network overview of the modular quantum architecture demonstrated in the new study. Credit: Yale University

This is network overview of the modular quantum architecture demonstrated in the new study.
Credit: Yale University

Yale University researchers have demonstrated one of the key steps in building the architecture for modular quantum computers: the “teleportation” of a quantum gate between two qubits, on demand.

The key principle behind this new work is quantum teleportation, a unique feature of quantum mechanics that has previously been used to transmit unknown quantum states between two parties without physically sending the state itself. Using a theoretical protocol developed in the 1990s, Yale researchers experimentally demonstrated a quantum operation, or “gate,” without relying on any direct interaction...

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Physics Treasure Hidden in a Wallpaper Pattern

A newly identified insulating material using the symmetry principles behind wallpaper patterns may provide a basis for quantum computing, according to an international team of researchers. This strontium-lead sample (Sr2Pb3) has a fourfold Dirac cone surface state, a set of four, two-dimensional electronic surface states that go away from a point in momentum space in straight lines. Credit: Image courtesy of Benjamin Wieder, Princeton University Department of Physics

A newly identified insulating material using the symmetry principles behind wallpaper patterns may provide a basis for quantum computing, according to an international team of researchers. This strontium-lead sample (Sr2Pb3) has a fourfold Dirac cone surface state, a set of four, two-dimensional electronic surface states that go away from a point in momentum space in straight lines. Credit: Image courtesy of Benjamin Wieder, Princeton University Department of Physics

An international team of scientists has discovered a new, exotic form of insulating material with a metallic surface that could enable more efficient electronics or even quantum computing...

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Findings could spur Energy-Saving Electronics, Quantum Computing

An exotic magnetic insulator conducts electricity along its edges without energy loss. The M stands for magnetization of the magnet, and this GIF shows the magnetization reversal process (red to blue and vice versa). Image: Wenbo Wang/Rutgers University-New Brunswick

An exotic magnetic insulator conducts electricity along its edges without energy loss. The M stands for magnetization of the magnet, and this GIF shows the magnetization reversal process (red to blue and vice versa). Image: Wenbo Wang/Rutgers University-New Brunswick

 
A Rutgers-led team of physicists has demonstrated a way to conduct electricity between transistors without energy loss, opening the door to low-power electronics and, potentially, quantum computing that would be far faster than today’s computers. Their findings, which involved using a special mix of materials with magnetic and insulator properties, are published online in Nature Physics.
 
“This material, although it’s much diluted in terms of magnetic properties, can still behave like a magnet and conducts elec...
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