Quantum computation and hidden variables

摘要

Many physicists limit oneself to an instrumentalist description of quantum phenomena and ignore the problems offoundation and interpretation of quantum mechanics. This instrumentalist approach results to "specialization barbarism"and mass delusion concerning the problem, how a quantum computer can be made. The idea of quantum computationcan be described within the limits of quantum formalism. But in order to understand how this idea can be put intopractice one should realize the question: "What could the quantum formalism describe'?", in spite of the absence of anuniversally recognized answer. Only a realization of this question and the undecided problem of quantum foundationsallows to see in which quantum systems the superposition and EPR correlation could be expected. Because of the"specialization barbarism" many authors are sure that Bell proved full impossibility of any hidden-variablesinterpretation. Therefore it is important to emphasize that in reality Bell has restricted to validity limits of the no- hidden-variables proof and has shown that two-state quantum system can be described by hidden variables. The later means thatno experimental result obtained on two-state quantum system can prove the existence of superposition and violation ofthe realism. One should not assume before unambiguous experimental evidence that any two-state quantum system isquantum bit. No experimental evidence of superposition of macroscopically distinct quantum states and of a quantum biton base of superconductor structure was obtained for the present. Moreover same experimental results can not bedescribed in the limits of the quantum formalism.