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In the field of quantum information theory, the quantum systems studied are abstracted away from any real world counterpart. A qubit might for instance physically be a photon in a linear optical quantum computer, an ion in a trapped ion quantum computer, or it might be a large collection of atoms as in a superconducting quantum computer.
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 .
Quantum information theory is a generalization of classical information theory to use quantum-mechanical particles and interference. It is used in the study of quantum computation and quantum cryptography .
Like the no-cloning theorem this has important implications in quantum computing, quantum information theory and quantum mechanics in general. The process of quantum deleting takes two copies of an arbitrary, unknown quantum state at the input port and outputs a blank state along with the original. Mathematically, this can be described by:
In quantum information theory, a set of bases in Hilbert space C d are said to be mutually unbiased if when a system is prepared in an eigenstate of one of the bases, then all outcomes of the measurement with respect to the other basis are predicted to occur with an equal probability inexorably equal to 1/d.
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 .
Reinhard F. Werner (born 26th march 1954) is a German physicist, and Professor at the Institute of Theoretical Physics at the Leibniz Universität Hannover. [1]He is notable for his contributions to the field of quantum information theory such as foundational concepts in the theory of quantum correlations including the concept of separable quantum states and mixed entangled states now known as ...
Physicist Leslie E. Ballentine gave the textbook a positive review, declaring it a good introduction to quantum foundations and ongoing research therein. [9] John C. Baez also gave the book a positive assessment, calling it "clear-headed" and finding that it contained "a lot of gems that I hadn't seen", such as the Wigner–Araki–Yanase theorem. [10]