Monday, June 25, 2012

1206.5205 (Dionigi M. T. Benincasa et al.)

Quantum Information Processing and Relativistic Quantum Fields    [PDF]

Dionigi M. T. Benincasa, Leron Borsten, Michel Buck, Fay Dowker
It is shown that an ideal measurement of a one-particle wave packet state of a relativistic quantum field in Minkowski spacetime enables superluminal signalling. The result holds for a measurement that takes place over an intervention region in spacetime whose extent in time in some frame is longer than the light crossing time of the packet in that frame.
View original: http://arxiv.org/abs/1206.5205

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