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Strongly Incompatible Quantum Devices




TekijätTeiko Heinosaari, Takayuki Miyadera, Daniel Reitzner

Julkaisuvuosi2014

JournalFoundations of Physics

Tietokannassa oleva lehden nimiFoundations of Physics

Vuosikerta44

Numero1

Aloitussivu34

Lopetussivu57

Sivujen määrä24

ISSN0015-9018

DOIhttps://doi.org/10.1007/s10701-013-9761-1

Verkko-osoitehttp://api.elsevier.com/content/abstract/scopus_id:84893773377


Tiivistelmä

The fact that there are quantum observables without a simultaneous measurement is one of the fundamental characteristics of quantum mechanics. In this work we expand the concept of joint measurability to all kinds of possible measurement devices, and we call this relation compatibility. Two devices are incompatible if they cannot be implemented as parts of a single measurement setup. We introduce also a more stringent notion of incompatibility, strong incompatibility. Both incompatibility and strong incompatibility are rigorously characterized and their difference is demonstrated by examples. © 2013 Springer Science+Business Media New York.




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