Precision For A Qubit Operation and Failure of Achieving Quantum Supremacy

Zhengjun Cao; Zhenfu Cao

Paper 2023/1971

Precision For A Qubit Operation and Failure of Achieving Quantum Supremacy

Zhengjun Cao

Zhenfu Cao

Abstract

M. Dyakonov [IEEE Spectrum, 2019] asked: what precision is required for manipulating a quantum gate, and what role is the notion of ENERGY playing in quantum computing theory. We answer the questions by investigating the Quantum Fourier Transformation (QFT). We show that the precision for a qubit operation is no less than $4.72694 \times 10^{- 36}$ , in accordance with the energy of a free particle. Quantum entanglement is indispensable to quantum supremacy. The present quantum computers have failed to instantiate quantum entanglement up to our expectation, due to inexact qubit operations. Quantum transition incurred during the transition of space-time continuum covertly changes qubits and corrupts quantum supremacy.

Metadata

Available format(s): PDF
Category: Foundations
Publication info: Preprint.
Keywords: Quantum Fourier Transformation transform size depleted operator Shor algorithm Planck constant
Contact author(s): caozhj @ shu edu cn
History: 2025-04-15: last of 3 revisions; 2023-12-31: received; See all versions
Short URL: https://ia.cr/2023/1971
License: CC0

BibTeX

@misc{cryptoeprint:2023/1971,
      author = {Zhengjun Cao and Zhenfu Cao},
      title = {Precision For A Qubit Operation and Failure of Achieving Quantum Supremacy},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/1971},
      year = {2023},
      url = {https://eprint.iacr.org/2023/1971}
}