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gr-qc2015
Global shift symmetry and vacuum energy of matter fields
Ja. V. Balitsky, V. V. Kiselev
We construct the model incorporating both an arbitrary shift of cosmological constant and Goldstone boson corresponding to the spontaneous breaking down the global shift symmetry i…
gr-qc2014★ 3 cited
Inflaton as a pseudo-Goldstone boson of vacuum energy shift symmetry
Ja. V. Balitsky, V. V. Kiselev
The exact symmetry induced by the global shift of energy scale for the cosmological constant in the action of matter fields is spontaneously broken by setting the density of real v…