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edit approved Apr 8, 2013 at 16:54

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There is an uncertainty relation in QFT for averaged field and the corresponding momentum operators, for. For a detailed discussion see ehere. (e-Print: arXiv:1208.3647 [hep-th], http://inspirehep.net/record/1128008?ln=en)

Similarly to normal QM there is no "energy-time" uncertainty relation which would have the same meaning.

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created Apr 8, 2013 at 13:13

user22910

There is an uncertainty relation in QFT for averaged field and the corresponding momentum operators, for a detailed discussion see e-Print: arXiv:1208.3647 [hep-th], http://inspirehep.net/record/1128008?ln=en

Similarly to normal QM there is no "energy-time" uncertainty relation which would have the same meaning.