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A comment on Java implementation of a quantum computing resistant cryptographic algorithm. Parent comment

Re:Java implementation of a quantum computing resistant cryp... by sesm on Monday October 23, 2023 @09:59AM (#37985746)
Also, some interpretations of Quantum Mechanics, like Dioshi-Penrose objective collapse interpretation, imply a physical limit on the number of qubits.

However, whether you should worry about post-quantum crypto or not is a risk assessment question, not a physical one.

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Re:Java implementation of a quantum computing resistant cryp... by notfed on Monday October 23, 2023 @03:10PM (#37990187)
Do any interpretations not have such a limit?
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Re:Java implementation of a quantum computing resistant cryp... by mthiim on Monday October 23, 2023 @03:35PM (#37990478)
Many-worlds etc. does not have such a limit. There are interpretations that posit that collapse is triggered by the system reaching a certain size (also GRW theory etc.). Such interpretations would preclude big quantum computers. Note that such interpretations aren't purely interpretations because they actually do posit measurable new physical phenomena. But since the relevant experiments are not currently possible to carry out and since they do have significant interpretational consequences, they are often called intepretations.
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