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NORD Quantique Plans To Scale This Design Into at 1,000-Logical-QBIT MACHINE BY 2031. | Credit: Peter Hansen/ Getty Images
Quantum computer capable of outperforming TODAY’S FASTEST Supercomputers May Not Need To Be As Large or Power-Hungry As We Thought, Researchers at Canadian Startup Nord Quantique Say.
THE COMPANY HAS BUILT A quantum bit (qubit) with built-in error correction, eliminating the need for the broad clusters of physical qubitically refied for fault-tolerant quantum computing.
Nord Quantique Plans To Scale This Design Into A 1,000-Logical-Qbit Machine By 2031. The System Would Be Compact Enough to Fit Inside the Data Center and Require Far Less Energy Than Current Platforms, Researchers Said.
The Annencement Follows at 2024 Milestone in Which the Company Demonstated A Working Prototype of ITS “BOSONIC QUBIT” – Device That Integrates Quantum Error Correction Directly into ITS Hardware. In a statementNord Quantique Representatives Description The New Architecture AS “A First in Applied Physics” and A Practical Route Toward Scalable, Utility-Grade Quantum Machines. The Breakthrough Addresses A LongStanding Challenge in Quantum Computing: Mintaining the Integrity of Quantum Information Over Time.
Quantum bits are extremly sensitive to heat, vibration and electromagnetic interference – Even when cooled close to Absolute zero (–460 ° F, or –273 ° C). Most Quantum Platforms Address This Using Quantum Error CorrectionWhich Combines Many Physical QBits to Form A Single Logical Unit Capable of Absorbing and Corrers Errough Redundancy, So that any Single Failure Doesn’t Scrub The Entire Calculation.
Related: Quantum Computers are here – But why from we need them and what will they be use for?
However, Creating A Single Logical Qbit Traditionally Requires Dozens or Even Hundirs of Physical Qubits, Significant Increasing the Size, Complexity and Energy Cost of a Quantum Computer. Nord Quantique’s System Avoids This by Using a Single Physical Component To Perform The Role of A Logical Qubit.
Quantum Computing in Safe Mode
At the core of the design is a superconducting aluminum cavity known as a bosonic resonator, cooled to near absolute zero. This Cavity Contains Light Particles (photons) That Store Quantum Information in Specific Electromagnetic Patterns Formed Within The Resonator. These patterns, Known as “modes,” each represent a different way the field resonates inside the cavity, allowing the same quantum state to be enoded in parallel.
By Distributing Information Across Multiple Modes Within the Same Physical Structure, The Qbit Can Identify and Corret Right Types of Interference. If one mode is disrupted, the Others Provide Enough Context to Restore the correct state. This Method, Known As Multimode Encoding, Gives Each Qubit Internal Fault Tolerance, Reducing the Need for External Error Correction and Enabling A 1: 1 Ratio Between Physical and Logical QuBits.
The qubit that nord quantique designed for use in a future machine. | CREDIT: NORD Quantique
The Researchers Estimated that a 1,000-Logical-QBIT MACHINE BUILT ON THIS Architecture Wold Occupy Just 215 Square Feet (20 Square Meals) and Consume Only A Fraction of the Energy Used by High-Performance Systems Today.
They also calculated that a quantum computer built Using their Architecture Could Break at 830-bit RSA Encryption Key in Aner, Consumer Just 120 Kilowatt-Hours of Energy. By Comparison, the Supercomputer Willd Require Nine Days and 280,000 Kilowatt-Hours to Solve the Same Problem, They Said.
“The Amount of Physical Qubits dedicated to Quantum Error Correction Has Always Gifted A Major Challenge for Our Industry,” Julien Camirand LemyreChief Executive at Nord Quantique, Said in a statement. “MULTIMODE ENDING ALLOWS US TO BUILD QUANTUM COMPUTERS WITH EXCELLENT ERROR CURRATION CAPBILITIES, BUT WITHHOUT THE HELPING OF ALL TOSE PHYSICAL QBIITS.”
To make the System More Fault-Tolerant, The Researchers Used A “Bosonic Code” Called Tesseract Code. This helps Guard Against Common Quantum Faults Such AS Bit Flips, Phase Flips, Control Errors and Leakage, Where the Qubit Slips Into A State That Isn’t Part of the System Used to Store and Process Information. Leakage is hard to correct because most error correction techniques only work inside the expedited set of quantum statutes and can Spot When Something Falls Outside it.
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To Test The System’s Reliability, The Researchers Ran Repeated Rounds of Error Correction and Filtered Out Results Where the Qubit Didn’t Behave As Intended.
About 12.6% of Runs Were Filtered Out, They Said. In the remaining date, the qubit it its state Through 32 Rounds of Error Correction Without Measurable Decay, Suggesting That Multimode Encoding Can Preserve Quantum Information Reliably Under Stable Conditions.
Nord Quantique Plans to release at 100-Logical-Qbit Machine by 2029, with the Full 1,000-Qbit System Scheduled for 2031. “Beyond Their Smaller and More Practical Size, Our Machines Will Also Consume the Fraction of the Energy,” Said Camirand Lemyre. “That makes them specially Appealing to [high-performance computing] HPC CENTERS WERE ENERGY COSTS ARE TOP OF MIND. “
