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Patent drawing for Dressed qubits
US 7,364,923 B2
Industry & transport US 7,364,923 B2 Not in force

Dressed qubits

This invention describes a way to make real-world, error-prone quantum computers behave like perfect ones. It involves creating a mathematical 'dressing' transformation that accounts for all the imperfections and noise in the physical machine. This transformation is built after carefully measuring and understanding the physical computer's characteristics, specifically using a technique called quantum process tomography, and then used to perform calculations and measure results as if the computer were ideal.

Why it matters: Filed when quantum computers were largely theoretical, the significant advancements in quantum hardware and the practical development of quantum process tomography since 2004 make this method more applicable. The computational power required to derive and apply such complex transformations has also vastly increased.

Status
Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build
SpecializedQuantum computer, advanced algorithms, quantum tomography

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