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We show that effective theories of matter that classically violate the null energy condition cannot be minimally coupled to Einstein gravity without being inconsistent with both string theory and black

We show that effective theories of matter that classically violate the null energy condition cannot be minimally coupled to Einstein gravity without being inconsistent with both string theory and black hole thermodynamics. We argue however that they could still be either non-minimally coupled or coupled to higher-curvature theories of gravity.

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    Date Created
    • 2015-03-16
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  • Text
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    Identifier
    • Digital object identifier: 10.1016/j.physletb.2015.03.020
    • Identifier Type
      International standard serial number
      Identifier Value
      0370-2693
    • Identifier Type
      International standard serial number
      Identifier Value
      1873-2445
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    Chatterjee, S., Parikh, M., & Schaar, J. P. (2015). On coupling NEC-violating matter to gravity. Physics Letters B, 744, 34-37. doi:10.1016/j.physletb.2015.03.020

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