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subjectPerformance And Reliability
authorQuanta Magazine
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An edited collection of advanced computing news from Communications of the ACM, ACM TechNews, other ACM resources, and news sites around the Web.


Finally, a Problem That Only Quantum Computers Will Ever Be Able to Solve
From ACM News

Finally, a Problem That Only Quantum Computers Will Ever Be Able to Solve

Early on in the study of quantum computers, computer scientists posed a question whose answer, they knew, would reveal something deep about the power of these futuristic...

The ­niverse Is Not a Simulation, but We Can Now Simulate It
From ACM News

The ­niverse Is Not a Simulation, but We Can Now Simulate It

In the early 2000s, a small community of coder-cosmologists set out to simulate the 14-billion-year history of the universe on a supercomputer.

Evidence Found for a New Fundamental Particle
From ACM News

Evidence Found for a New Fundamental Particle

Physicists are both thrilled and baffled by a new report from a neutrino experiment at Fermi National Accelerator Laboratory near Chicago.

Machine Learning's 'Amazing' Ability to Predict Chaos
From ACM News

Machine Learning's 'Amazing' Ability to Predict Chaos

Half a century ago, the pioneers of chaos theory discovered that the "butterfly effect" makes long-term prediction impossible.

Machine Learning’s ‘Amazing’ Ability to Predict Chaos
From ACM News

Machine Learning’s ‘Amazing’ Ability to Predict Chaos

In new computer experiments, artificial-intelligence algorithms can tell the future of chaotic systems.

Quantum Algorithms Struggle Against Old Foe: Clever Computers
From ACM News

Quantum Algorithms Struggle Against Old Foe: Clever Computers

The quest for "quantum supremacy" – unambiguous proof that a quantum computer does something faster than an ordinary computer – has paradoxically led to a boom...

The Era of Quantum Computing Is Here. Outlook: Cloudy
From ACM News

The Era of Quantum Computing Is Here. Outlook: Cloudy

After decades of heavy slog with no promise of success, quantum computing is suddenly buzzing with almost feverish excitement and activity.

Mathematicians Find Wrinkle in Famed Fluid Equations
From ACM News

Mathematicians Find Wrinkle in Famed Fluid Equations

The Navier-Stokes equations capture in a few succinct terms one of the most ubiquitous features of the physical world: the flow of fluids.

Best-Ever Algorithm Found For Huge Streams of Data
From ACM TechNews

Best-Ever Algorithm Found For Huge Streams of Data

Researchers have  created a near-perfect streaming algorithm that operates by recalling only enough of what it has seen to relate what it has observed most often...

A Brain Built From Atomic Switches Can Learn
From ACM TechNews

A Brain Built From Atomic Switches Can Learn

Researchers are constructing a device "inspired by the brain to generate the properties that enable the brain to do what it does."

New Theory Cracks Open the Black Box of Deep Learning
From ACM News

New Theory Cracks Open the Black Box of Deep Learning

A new idea called the "information bottleneck" is helping to explain the puzzling success of today's artificial-intelligence algorithms—and might also explain how...

For Astronomers, a Neutron Star Merger Could Eclipse the Eclipse
From ACM News

For Astronomers, a Neutron Star Merger Could Eclipse the Eclipse

Late last week, as some staff astronomers embarked on trips to see Monday's solar eclipse, two of NASA's space-based observatories—Hubble and Chandra X-ray—and...

Complexity Theory Problem Strikes Back
From ACM News

Complexity Theory Problem Strikes Back

The legendary graph isomorphism problem may be harder than a 2015 result seemed to suggest.

Computing's Search For Quantum Questions
From ACM TechNews

Computing's Search For Quantum Questions

Scientists are plotting out benchmark problems, classes of problems that are specifically appropriate to hybrid quantum computers. 

Landmark Algorithm Breaks 30-Year Impasse
From ACM TechNews

Landmark Algorithm Breaks 30-Year Impasse

Computer scientists are calling a new algorithm a breakthrough in mapping how hard computational problems are to solve. 

‘outsiders’ Crack 50-Year-Old Math Problem
From ACM News

‘outsiders’ Crack 50-Year-Old Math Problem

Three computer scientists have solved a problem central to a dozen far-flung mathematical fields.

A Tricky Path to Quantum-Safe Encryption
From ACM News

A Tricky Path to Quantum-Safe Encryption

In the drive to safeguard data from future quantum computers, cryptographers have stumbled upon a thin red line between security and efficiency.

New Letters Added to the Genetic Alphabet
From ACM News

New Letters Added to the Genetic Alphabet

DNA stores our genetic code in an elegant double helix. But some argue that this elegance is overrated.

Networks Reveal the Connections of Disease
From ACM News

Networks Reveal the Connections of Disease

Stefan Thurner is a physicist, not a biologist. But not long ago, the Austrian national health insurance clearinghouse asked Thurner and his colleagues at the Medical...

Quantum Computing Without Qubits
From ACM Opinion

Quantum Computing Without Qubits

For more than 20 years, Ivan H. Deutsch has struggled to design the guts of a working quantum computer.
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