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quant-ph2000
An Attack to Quantum Cryptography from Space
Igor V. Volovich
The promise of secure cryptographic quantum key distribution schemes is based on the use of quantum effects in the spin space. We point out that in fact in many current quantum cry…
quant-ph2000
Bell's Theorem and Locality in Space
Igor V. Volovich
Bell's theorem states that some quantum correlations can not be represented by classical correlations of separated random variables. It has been interpreted as incompatibility of t…
quant-ph2000
Bell's Theorem and Random Variables
Igor Volovich, Yaroslav Volovich
Bell's theorem states that quantum correlation function of two spins can not be represented as an expectation value of two classical random variables. Spin is described in Bell's m…