QUANTUM CRYPTOGRAPHY: QUANTUM KEY DISTRIBUTION AND COIN FLIPPING
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Author(s):
NEETU RANI
Vol - 8, Issue- 9 ,
Page(s) : 189 - 198
(2017 )
DOI : https://doi.org/10.32804/IRJMST
Abstract
Based on Heisnberg’s uncertaintity principle, when a polarised electron is thrown and at the instant at which the position of the electron is known, its momentum therefore can be known only up to magnitudes which correspond to that discontinuous change; thus, the more precisely the position is determined, the less precisely the momentum is known, and conversely”[3] (Heisenberg, 1927: 174–5). This simply means that observation of quanta changes its behavior. By measuring the velocity of quanta we would affect it, and thereby change its position; if we want to find a quant's position, we are forced to change its velocity. Therefore, we cannot measure a quantum system's characteristics without changing it[4] (Clark, n.d.) and we cannot record all characteristics of a quantum system before those characteristics are measured.
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