“It is akin to trying to make today’s best smartphones using vacuum tubes from the early 1900s.” Condensed matter theory physicist Sankar Das Sarma says quantum computers have a long way to go before they can crack cryptography.
will one day become advanced enough to hack current cryptography. That could result in the theft of billions of dollars worth of digital assets, or bring blockchain tech to a grinding halt. There are numerous projects devoted to developing quantum proof cryptography and blockchains.
Sarma pointed to “qubits” which are quantum objects like an electron or photon that enable the enhanced capabilities of quantum computer: “Only tens of thousands of these would be used for computation — so-called logical qubits; the rest would be needed for error correction, compensating for decoherence,” he added.While Sarma was hesitant to sound the cryptographic alarm bells, he did note that a real quantum computer will “have applications unimaginable today” in the same manner in which nobody could predict that the first transistor made in 1947 would lead to the laptops and smartphones of this era.
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