Quantifying energy condition violations in traversable wormholes
  The `theoretical' existence of traversable Lorentzian wormholes in the classical, macroscopic world is plagued by the violation of the well--known energy conditions of General Relativity. In this brief article we show : (i) how the extent of violation can be quantified using certain volume integrals (ii) whether this `amount of violation' can be minimised for some specific cut--and--paste geometric constructions. Examples and possibilities are also outlined. 
Sayan Kar (IITKgp, India), Naresh Dadhich (IUCAA, India), Matt Visser   (Victoria University of Wellington, New Zealand)