Search results
Results from the WOW.Com Content Network
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.
In quantum mechanics, and especially quantum information and the study of open quantum systems, the trace distance is a metric on the space of density matrices and gives a measure of the distinguishability between two states. It is the quantum generalization of the Kolmogorov distance for classical probability distributions.
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]
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 ...
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.
R. Michael Barnett, a physicist at the Lawrence Berkeley National Laboratory, was awarded the status of Fellow [1] in the American Physical Society, [2] after being nominated by the laboratory's Division of Particles and Fields in 1993. [3]
Quantum Mechanics: The Physics of the Microscopic World, Benjamin Schumacher, The Teaching Company, lecture 21 This quantum mechanics -related article is a stub . You can help Wikipedia by expanding it .
One approach to implementing continuous-variable quantum information protocols in the laboratory is through the techniques of quantum optics. [6] [7] [8] By modeling each mode of the electromagnetic field as a quantum harmonic oscillator with its associated creation and annihilation operators, one defines a canonically conjugate pair of variables for each mode, the so-called "quadratures ...