Power of quantum entanglement

Abstract

Quantum entanglement is arguably the most inherently quantum feature of quantum information, computation and communication-a feature that is at heart of quantum physics. Quantum entanglement is also increasingly often considered as being behind new and surprising power quantum computations and communications exhibit-comparing to the classical computation and communication. Quantum entanglement used to be seen, practically until 1993, especially due to its accompanying non-locality impacts, as being behind various mysteriously looking and weird phenomena of quantum world, and of interest mainly to the philosophers of science. Since then our perception of entanglement has changed much. Currently, quantum entanglement is increasingly believed to be a resource that can be exploited to implement various quantum information processing tasks, at spatially separated locations, and to be behind new gold mine for science and technology to which the outcomes of the research in quantum information science and quantum information technology seem to pave the road. Quantum entanglement implications are also a deep reason to attempt to develop new, quantum information processing based, foundations of quantum mechanics. To help to do that might be one of big challenges for Informatics.