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Tunnelling of the 3rd kind : a test of the effective non-locality of quantum field theory.

Gardiner, S.A. and Gies, H. and Jaeckel, J. and Wallace, C.J. (2013) 'Tunnelling of the 3rd kind : a test of the effective non-locality of quantum field theory.', Europhysics letters., 101 (6). p. 61001.


Integrating out virtual quantum fluctuations in an originally local quantum field theory results in an effective theory which is non-local. In this letter we argue that tunnelling of the 3rd kind —where particles traverse a barrier by splitting into a pair of virtual particles which recombine only after a finite distance— provides a direct test of this non-locality. We sketch a quantum-optical setup to test this effect, and investigate observable effects in a simple toy model.

Item Type:Article
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Publisher statement:Copyright © EPLA, 2013. This is an author-created, un-copyedited version of an article accepted for publication in Europhysics letters. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1209/0295-5075/101/61001
Date accepted:No date available
Date deposited:No date available
Date of first online publication:March 2013
Date first made open access:No date available

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