This Self Aware Quantum Computer Can Think and Grow With You

This Self Aware Quantum Computer Can Think and Grow With You

Researchers develop the first-ever quantum device that detects and corrects its own errors

How do you measure something that is infinite?

That is the piece of the puzzle that physics researchers at The University of California – Santa Barbara are trying to solve.

Quantum physics plays a significant role in understanding consciousness through science.

When scientists develop a full quantum computer, the world of computing will undergo a revolution of sophistication, speed and energy efficiency that will make even our beefiest conventional machines seem like Stone Age clunkers by comparison.

But, before that happens, quantum physicists like the ones in UC Santa Barbara’s physics professor John Martinis’ lab will have to create circuitry that takes advantage of the marvelous computing prowess promised by the quantum bit (“qubit”), while compensating for its high vulnerability to environmentally-induced error.

In what they are calling a major milestone, the researchers in the Martinis Lab have developed quantum circuitry that self-checks for errors and suppresses them, preserving the qubits’ state(s) and imbuing the system with the highly sought-after reliability that will prove foundational for the building of large-scale superconducting quantum computers.

It turns out keeping qubits error-free, or stable enough to reproduce the same result time and time again, is one of the major hurdles scientists on the forefront of quantum computing face.

“One of the biggest challenges in quantum computing is that qubits are inherently faulty,” said Julian Kelly, graduate student researcher and co-lead author of a research paper that was published in the journal Nature.

“So if you store some information in them, they’ll forget it.”

Unlike classical computing, in which the computer bits exist on one of two binary (“yes/no”, or “true/false”) positions, qubits can exist at any and all positions simultaneously, in various dimensions. It is this property, called “superpositioning,” that gives quantum computers their phenomenal computational power, but it is also this characteristic which makes qubits prone to “flipping,” especially when in unstable environments, and thus difficult to work with.

“It’s hard to process information if it disappears,” said Kelly.

However, that obstacle may just have been cleared by Kelly, postdoctoral researcher Rami Barends, staff scientist Austin Fowler and others in the Martinis Group.

Computers-that-think-like-humans

See also: Computers that think like humans

The error detection process involves creating a scheme in which several qubits work together to preserve the information, said Kelly. To do this, information is stored across several qubits.

“And the idea is that we build this system of nine qubits, which can then look for errors,” he said. Qubits in the grid are responsible for safeguarding the information contained in their neighbors, he explained, in a repetitive error detection and correction system that can protect the appropriate information and store it longer than any individual qubit can.

“This is the first time a quantum device has been built that is capable of correcting its own errors,” said Fowler. For the kind of complex calculations the researchers envision for an actual quantum computer, something up to a hundred million qubits would be needed, but before that a robust self-check and error prevention system is necessary.

Key to this quantum error detection and correction system is a scheme developed by Fowler, called the surface code. It uses parity information — the measurement of change from the original data (if any) — as opposed to the duplication of the original information that is part of the process of error detection in classical computing. That way, the actual original information that is being preserved in the qubits remains unobserved.

Why? Because quantum physics.

“You can’t measure a quantum state, and expect it to still be quantum,” explained Barends. The very act of measurement locks the qubit into a single state and it then loses its superpositioning power, he said. Therefore, in something akin to a Sudoku puzzle, the parity values of data qubits in a qubit array are taken by adjacent measurement qubits, which essentially assess the information in the data qubits by measuring around them.

“So you pull out just enough information to detect errors, but not enough to peek under the hood and destroy the quantum-ness,” said Kelly.

This development represents a meeting of the best in the science behind the physical and the theoretical in quantum computing — the latest in qubit stabilization and advances in the algorithms behind the logic of quantum computing.

“It’s a major milestone,” said Barends. “Because it means that the ideas people have had for decades are actually doable in a real system.”

See also: $1.5 billion Supercomputer to simulate the Human Brain

The Martinis Group continues to refine its research to develop this important new tool. This particular quantum error correction has been proved to protect against the “bit-flip” error, however the researchers have their eye on correcting the complimentary error called a “phase-flip,” as well as running the error correction cycles for longer periods to see what behaviors might emerge.

Martinis and the senior members of his research group have, since this research was performed, entered into a partnership with Google.

Find us here

Get news from the CSGLOBE in your inbox each weekday morning

The views and opinions expressed in this article are those of the authors/source and do not necessarily reflect the position of CSGLOBE or its staff.

Paid content

This Man One Ups Tesla By Inventing An Electric Car That Never Needs Charging

The concept of the electric car has been around for a very long time, and as with any other world revolutionizing technology, it’s taken...

The 10 Biggest Dangers Posed By Future Technology

It’s not easy predicting the future of technology. In the fifties it seemed a pretty much foregone conclusion that by 2015 we would all...

Harvard Study Proves Why The Bees Are All Disappearing

The human race is really starting to feel the consequences of their actions. One area we are waking up to is the massive amount...

What's New Today

Georgia House Votes To Allow Citizens To Abolish Police Departments In The State

The Georgia House backed an effort on Friday to dissolve the Glynn County Police Department and any...

Leaked CDC document contradicts Pence claim that U.S. coronavirus cases ‘have stabilized’

Even as Vice President Mike Pence wrote in a Wall Street Journal op-ed published Tuesday that coronavirus...

Five bombshells about Trump from Bolton ‘s book

Excerpts from former national security adviser John Bolton ’s book about his time in the Trump administration...

Don’t Listen to Fox. Here’s What’s Really Going On in Seattle’s Protest Zone.

It seems I live in a city undergoing a “totalitarian takeover” that will lead to “fascist outcomes”...

MOST READ

What Is Agenda 21? Depopulation of 95% of the World By 2030

Most people are unaware that one of the greatest threats to their freedom may be a United Nations program which plans to depopulate 95%...

Complete List of BANKS Owned/Controlled by the Rothschild Family

What’s the significance of having a central bank within a country and why should you concern yourself, your family and colleagues? Central banks are illegally...

Georgia House Votes To Allow Citizens To Abolish Police Departments In The State

The Georgia House backed an effort on Friday to dissolve the Glynn County Police Department and any...

This Man One Ups Tesla By Inventing An Electric Car That Never Needs Charging

The concept of the electric car has been around for a very long time, and as with any other world revolutionizing technology, it’s taken...

Scientists hopes of unlimited, clean nuclear energy

A milestone has been reached in the 60-year struggle to harness the nuclear reactions that power the Sun in an experiment that could lead...

Uravu ’s zero-electricity Aqua Panels produce gallons of water from thin air

Uravu, a startup based in Hyderabad, India, has created a device that can produce water from an unlikely source–the air itself. The company’s affordable, electricity-free...

Einstein brain was a bit different than yours and mine

Einstein brain was better-connected than most, according to new study Several scientific studies of Einstein brain structure have been done, noting some differences from brains...

Organic food significantly lowers pesticide exposure

Eating an organic diet for a week can cause pesticide levels to drop by almost 90% in adults, research from RMIT University has found. The...

Iceland – Approach’ to Teen Substance Abuse is Something America Needs Now

As the U.S. largely ignores an epidemic opioid crisis fueled by the pharmaceutical industry and a rush of available heroin resulting from the war...

Egyptian President Calls Out Trump and Saudi Arabia for Aiding and Abetting Terrorism

Speaking at the high-profile Arab Islamic American Summit in Riyadh, Saudi Arabia, president of Egypt Abdel Fattah el-Sisi made comments directly to Mr. Trump and...

Mushrooms May Be a Better Source of Vitamin D than Supplements

Researchers from Boston University School of Medicine (BUSM) have recently discovered that eating mushrooms that contain Vitamin D2 may actually be as effective at...