Stability of the effective potential of the gauge-less top-Higgs model in curved spacetime

Understand

We investigate stability of the Higgs effective potential in curved spacetime.

• To this end, we consider the gauge-less top-Higgs sector with an additional scalar field.
• Explicit form of the terms proportional to the squares of the Ricci scalar, the Ricci tensor and the Riemann tensor that arise at the one-loop level in the effective action has been determined.
• We have investigated the influence of these terms on the stability of the scalar effective potential.