Category Physics

Breakthrough in Computer Chip Energy Efficiency could Cut Data Center Electricity use

PhD student Jessica Peterson and Professor John Conley discussing the operation of one of his group’s atomic layer deposition (ALD) systems.

Researchers at Oregon State University and Baylor University have made a breakthrough toward reducing the energy consumption of the photonic chips used in data centers and supercomputers.

The findings are important because a data center can consume up to 50 times more energy per square foot of floor space than a typical office building, according to the U.S. Department of Energy.

A data center houses an organization’s information technology operations and equipment; it stores, processes and disseminates data and applications. Data centers account for roughly 2% of all electricity use in the United States, the DOE says.

According to the U.S. International Trade Commission, the number of data centers has risen rapidly as data demand has soared...

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Stretching Metals at the Atomic level allows researchers to create important materials for Quantum, Electronic, and Spintronic Applications

CSE professor Bharat Jalan and Ph.D. student Sreejith Nair
University of Minnesota chemical engineering and materials science researchers have developed a breakthrough method for creating high-quality metal oxide films that are important for next generation applications like quantum computing and microelectronics. Photo by Olivia Hultgren

New technique paves the way for easy oxidation of historically ‘stubborn’ metals. A University of Minnesota Twin Cities-led team has developed a first-of-its-kind, breakthrough method that makes it easier to create high-quality metal oxide thin films out of “stubborn” metals that have historically been difficult to synthesize in an atomically precise manner...

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Team demonstrates Quantum Advantage on Optimization problems with a 5,000-qubit Programmable Spin Glass

Team demonstrates quantum advantage on optimization problems with a 5000-qubit programmable spin glass
The D-Wave Advantage processor, with more than 5,000 qubits and 40,000 programmable couplers, was used to demonstrate coherent annealing through a quantum phase transition, giving a speedup over simulated annealing. Credit: D-Wave

Over the past decades, researchers and companies worldwide have been trying to develop increasingly advanced quantum computers. The key objective of their efforts is to create systems that will outperform classical computers on specific tasks, which is also known as realizing “quantum advantage.”

A research team at D-Wave Quantum Inc., a Canadian quantum computing company, recently created a new quantum computing system that outperforms classical computing systems on optimization problems...

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Curved Spacetime in a Quantum Simulator

[Translate to English:] Montage aus Astronomie-Foto von Gravitationslinseneffekt und Teilchen

The theory of relativity works well when you want to explain cosmic-scale phenomena—such as the gravitational waves created when black holes collide. Quantum theory works well when describing particle-scale phenomena—such as the behavior of individual electrons in an atom. But combining the two in a completely satisfactory way has yet to be achieved. The search for a “quantum theory of gravity” is considered one of the significant unsolved tasks of science.

This is partly because the mathematics in this field is highly complicated...

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