- #1
petergreat
- 267
- 4
When Einstein proposed the cosmological constant, it was regarded as an arbitrary constant having no connection with flat-spacetime physics (e.g. QFT to be invented later). IMHO the effective cosmological constant, in principle, should be the sum of QFT vacuum energy and Einstein's arbitrary cosmological constant. However, why is it the case that everyone equates the two concepts?