On the unitarity of higher-dervative and nonlocal theories
classification
🪐 quant-ph
hep-th
keywords
nonlocalclaimsconsidercontraryfoundhigher-derivativehigher-dervativeliterature
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We consider two simple models of higher-derivative and nonlocal quantu systems.It is shown that, contrary to some claims found in literature, they can be made unitary.
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