Authors: Alan M. Kadin
It is widely believed that quantum computing is on the threshold of practicality, with performance that will soon surpass that of classical computing. On the contrary, it is argued that both the present and the future of quantum computing may be highly uncertain, for the following reasons: 1) The promised performance depends on entanglement-based scaling to massive parallelism, which has not been verified, and may be tested . 2) Even if the theory were correct, exponential sensitivity to noise for highly entangled states could make the technology impractical . 3) Evidence for entanglement in superconducting qubits can be explained using the nonlinear properties of classical Josephson junctions . 4) Evidence for entanglement in arrays of coupled qubits can be explained using conventional energy-band theory with delocalized states.  A.M. Kadin and S.B. Kaplan, “Proposed experiments to test the foundations of quantum computing”, 2016, http://vixra.org/abs/1607.0105.  G. Kilai, “The Quantum Computer Puzzle ,” 2016, https://arxiv.org/pdf/1605.00992.pdf  J. Blackburn, et al., “Survey of Classical and Quantum Interpretations of experiments on Josephson junctions at very low temperatures”, Phys. Rep. 611, 2016. https://arxiv.org/pdf/1602.05316.pdf
Comments: 32 Pages. Poster presented at American Physical Society meeting, Boston, Mass., Mar. 5, 2019
[v1] 2019-03-27 08:25:01
Unique-IP document downloads: 18 times
Vixra.org is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. Vixra.org will not be responsible for any consequences of actions that result from any form of use of any documents on this website.
Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.