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  1. Vor einem Tag · The monogamy of nonlocality is one the most intriguing and cryptographically significant predictions of quantum theory. The physical principle of information causality offers a promising means to understand and restrict the extent of nonlocality without invoking the abstract mathematical formalism of quantum theory. In this article, we demonstrate that the original bipartite formulation of ...

  2. Vor 3 Tagen · In its place we have ‘a well-defined theory of the relationship between the object and the observer’ in virtue of which quantum mechanics must be seen not simply as a theory of physical systems (both micro- and macro-scopic, as far as London was concerned) but as a theory of knowledge. As such it is inherently perspectival since the observer herself falls under the remit of the theory ...

  3. Vor 3 Tagen · In his Essay on historical debates about the nature of quantum reality (see Nature 629, 29–32; ... there is a well-developed theory of such faster-than-light ‘tachyon’ particles in special ...

  4. Vor 3 Tagen · The critical physical question in a quantum theory is this: what are the physically observable quantities defined by the theory? According to the postulates of quantum mechanics, such quantities are defined by Hermitian operators that act on the Hilbert space of possible states of a system.

  5. Vor 3 Tagen · Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in such a way that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance.

  6. Vor 3 Tagen · Quantum computing refers to using the principles of quantum mechanics to manipulate information and perform computations. Algorithms designed for quantum computers take advantage of the fact that quantum-mechanical systems may exist in a superposition of states to solve certain problems up to exponentially faster than classical computers.

  7. en.wikipedia.org › wiki › Matter_waveMatter wave - Wikipedia

    Vor einem Tag · Matter waves are a central part of the theory of quantum mechanics, being half of wave–particle duality. At all scales where measurements have been practical, matter exhibits wave -like behavior. For example, a beam of electrons can be diffracted just like a beam of light or a water wave.