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A Lower Bound on the Energy Density in Classical and Quantum Field Theories

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arxiv 1701.03196 v3 pith:HWER7G7B submitted 2017-01-12 hep-th gr-qc

A Lower Bound on the Energy Density in Classical and Quantum Field Theories

classification hep-th gr-qc
keywords energyfieldconditionquantumtheoryboundclassicaldensity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A novel method for deriving energy conditions in stable field theories is described. In a local classical theory with one spatial dimension, a local energy condition always exists. For a relativistic field theory, one obtains the dominant energy condition. In a quantum field theory, there instead exists a quantum energy condition, i.e. a lower bound on the energy density that depends on information-theoretic quantities. Some extensions to higher dimensions are briefly discussed.

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