9 citations · 17 across the 3 of their papers we have counts for
4 papers
Revisiting Critical Higgs Inflation: Electroweak Couplings, CMB Observables, and Perturbative Unitarity
Sarah R. Geller, Sol Gutierrez-Lara, David I. Kaiser +1
We revisit the scenario of critical Higgs inflation, in which inflation is driven by the Standard Model Higgs boson with parameters chosen close to a critical point, giving rise to…
Precision Unitarity Calculations in Inflationary Models
Thomas Steingasser, Mark P. Hertzberg, David I. Kaiser
We revisit perturbative unitarity in scalar field inflation with a nonminimal coupling, with Higgs inflation serving as the most prominent example. Although such models are phenome…
Toward quantum tunneling from excited states: Recovering imaginary-time instantons from a real-time analysis
Thomas Steingasser, David I. Kaiser
We revisit the path integral description of quantum tunneling and lay the groundwork for its generalization to excites states through real-time path integral techniques. For clarit…
Finite-Temperature Instantons from First Principles
Thomas Steingasser, Morgane König, David I. Kaiser
We derive the finite-temperature quantum-tunneling rate from first principles. The rate depends on both real- and imaginary-time; we demonstrate that the relevant instantons should…