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BB84 is a quantum key distribution scheme developed by Charles Bennett and Gilles Brassard in 1984. [1] It is the first quantum cryptography protocol. [2] The protocol is provably secure assuming a perfect implementation, relying on two conditions: (1) the quantum property that information gain is only possible at the expense of disturbing the signal if the two states one is trying to ...
Just like the basic unit of classical information is the bit, quantum information deals with qubits. [15] Quantum information can be measured using Von Neumann entropy. Recently, the field of quantum computing has become an active research area because of the possibility to disrupt modern computation, communication, and cryptography. [14] [16]
Joan Vaccaro is a physicist at Griffith University and a former student of David Pegg.Her work in quantum physics includes quantum phase, [1] nonclassical states of light, coherent laser excitation of atomic gases, cold atomic gases, stochastic Schrödinger equations, quantum information theory, quantum references, wave–particle duality, quantum thermodynamics, and the physical nature of time.
Michael Peter Barnett (24 March 1929 – 13 March 2012) was a British theoretical chemist and computer scientist. [1] He developed mathematical and computer techniques for quantum chemical problems, and some of the earliest software for several other kinds of computer application.
1 ebit + 2 bits 1 qubit (i.e. quantum teleportation), where ⩾ {\displaystyle \geqslant } indicates "can do the job of". These principles were formulated around 1993 by Charles H. Bennett .
Barnett attended Cambridge University and received his Ph.D in theoretical physics from Harvard University. He has written on topics such as efficient and accurate computational methods for waves, PDE eigenvalue problems, periodic problems, and quantum chaos. [4] His high-frequency eigenfunction calculations are some of the fastest in the world ...
But the no-hiding theorem is a more general proof of conservation of quantum information which originates from the proof of conservation of wave function in quantum theory. It may be noted that the conservation of entropy holds for a quantum system undergoing unitary time evolution and that if entropy represents information in quantum theory ...
Quantum Information Science is a field that combines the principles of quantum mechanics with information theory to study the processing, analysis, and transmission of information. It covers both theoretical and experimental aspects of quantum physics, including the limits of what can be achieved with quantum information .