Optoelectronics and Quantum Physics

Quantum Information Theory

Quantum data contrasts emphatically from old style data, typified by the bit, in many striking and new ways. While the essential unit of traditional data is the bit, the most fundamental unit of quantum data is the qubit. Old style data is estimated utilizing Shannon Entropy, while the quantum mechanical simple is Von Neumann entropy. Given a factual outfit of quantum mechanical frameworks with the thickness grid p, Many of a similar entropy measures in old style data hypothesis can likewise be summed up to the quantum case, for example, Holevo entropy and the contingent quantum entropy. 

In contrast to old style computerized states (which are discrete), a qubit is constant esteemed, describable by a course on the Bloch circle. Regardless of being ceaselessly esteemed along these lines, a qubit is the littlest conceivable unit of quantum data, as in spite of the qubit state being persistently esteemed, it is difficult to gauge the worth correctly