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Quantum
Information and Computation
ISSN: 1533-7146
published since 2001
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Vol.3 No.3, May 2003 |
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Einstein-Podolsky-Rosen correlation seen from moving observers
(pp224-228)
Hiroaki Terashima and
Masahito Ueda
doi:
https://doi.org/10.26421/QIC3.3-4
Abstracts:
Within the framework of relativistic quantum theory, we
consider the Einstein-Podolsky-Rosen (EPR) gedanken-experiment in which
measurements of the spin are performed by moving observers. We find that
the perfect anti-correlation in the same direction between the EPR pair
no longer holds in the observers' frame. This does not imply a breakdown
of the non-local correlation. We explicitly show that the observers must
measure the spin in appropriately chosen different directions
in order to observe the perfect anti-correlation. This fact should be
taken into account in utilizing the entangled state in quantum
communication by moving observers.
Key words:
quantum communication, relativity, EPR correlation, Bell's inequality |
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