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gr-qc2025
Classical and quantum trace-free Einstein cosmology
Merced Montesinos, Abdel Pérez-Lorenzana, Jorge Meza +1
Trace-free Einstein gravity, in the absence of matter fields and using the Friedmann-Robertson-Walker (FRW) metric, is solvable both classically and quantum mechanically. This is a…
gr-qc2025
Trace-free Einstein gravity as two interacting constrained theories
Merced Montesinos, Diego Gonzalez
A theory of gravity alternative to general relativity is trace-free Einstein gravity, which has the remarkable property that the cosmological constant emerges as an integration con…
gr-qc2025
Trace-free Einstein gravity as a constrained bigravity theory
Merced Montesinos, Diego Gonzalez
Trace-free Einstein gravity is a prominent alternative to general relativity, which has two versions: one in which the energy-momentum conservation is assumed a priori and another…