Can the Present Technology Create Gross Amounts of Negative Energy Density?

Abstract

If enough negative mass, according to Einstein’s Field Equations, could be obtained, a Pandora’s box may be opened in many different domains of physics. With negative mass or energy, one could in principle make a time machine, or violate the second law of thermodynamics. More precisely, the averaged null energy condition must be violated to realize such results. In this paper, several approaches dealing with the situation are considered, with special focus on improving previous work on developing a practical space‐warp propulsive drive. The basic idea is simply to pull regions having negative energy density from a constrained configuration to free space (or a benignly constrained space). The postulated scenarios of interest are to: 1) consider a null geodesic vector in an asymmetric perforated Casimir cavity with distant enough separated holes, 2) focus on null energy condition (NEC) violating pulses of the mentioned ray in the asymmetric and symmetric perforated cavity, 3, 4) Doing the same for non‐geodesic curves and negative modes of squeezed light, by including suitable engineering, 5) Interpret the NEC violating region as a quantum knot and taking it to at least nano or micrometers distances by the entanglement principle, and 6) A similar scenario to 5) is reviewed; inspired by recent experiments involving the quantum teleportation of a single photon in the lab.