Nonlocal Metric Realizations of MOND

Understand

I discuss relativistic extensions of MOND in which the metric couples normally to matter.

• I argue that MOND might be a residual effect from the vacuum polarization of infrared gravitons produced during primordial inflation.
• If so, MOND corrections to the gravitational field equations would be nonlocal.
• Nonocality also results when one constructs metric field equations which reproduce the Tully-Fisher relation, along with sufficient weak lensing.