IBM’s new quantum quantum computer will be flawed tolerant. From now on building, building quantum computers is a matter of engineering instead of science – and the quantum apocalypse of cryptocurrencies has retreated a few years.
IBM this week a new quantum computing architecture that claims to dramatically reduce the qubit number necessary for error correction.
This advance will support your goal of building a large -scale quantum computer and Fault tolerantcalled Starling, which will be available to customers by 2029.
Given the inherent lack of reliability of the quibits (the quantum equivalent of bits) With which quantum computers are built, the error correction will be crucial for the construction of Dreliable and large -scale ispositive.
Error correction approaches distribute each information unit by many physical quibits to create “logical quibits”. This provides redundancy against errors in individual physical quibits, explains the.
One of the most popular approaches is known as the surface code, which requires approximately 1,000 physical quibits to compose a logical qubit.
This was the approach in which IBM initially focused, but the Norete-American company eventually realized that creating the hardware to support it was “An impossible dream of engineering“, These Jay Gambetvice president of IBM Quantum, at a press conference.
Around 2019, the company began to investigate alternatives.
In published in Nature Last year, IBM researchers outlined a new error correction scheme, named “low density parity checking codes” (qLDPC), which would require about 1/10 of the number of quibits necessary by the surface codes.
The new quantum computer architecture now presented by IBM can realize this new approach.
“We unveiled the code for the correction of quantum errorsIf it is our plan to build the first large-scale quantum computer and flawed tolerant, ”said Gambetta.“ We feel confident that from now on build quantum computers It is a matter of engineering, instead of science“.
One of the direct consequences of the advance now announced by IBM is in infrastructure that supports the digital monetary system – The Blockchain’s Cryptographic Dorsal Spine.
Indeed, large -scale quantum computers with error correction will be able to execute algorithms that could break cryptography of elliptical curve (ECC) currently used by bitcoins as one of the main Security Protocols.
Experts currently believe that the industry has less than a decade, Maybe just a few years To implement contingency plans against the, which we have talked about here for days. This period, apparently, It has just been shortened by IBM.
