activity
20232026
most citedBubble wall dynamics from nonequilibrium quantum field theory

14 citations · 34 across the 7 of their papers we have counts for

collaborators

7 papers

hep-ph2026

Status of the strong problem

Wen-Yuan Ai

The strong problem remains one of the major open questions in the Standard Model of particle physics. Its best-known solution is the Peccei--Quinn mechanism, which predicts a…

hep-ph2025

Reply to "Clearing up the Strong problem"

Wen-Yuan Ai, Björn Garbrecht, Carlos Tamarit

The conservation of in QCD has been shown to follow from a careful treatment of the path integral and canonical quantization in arXiv:2001.07152 and arXiv:2403.00747. Here, we…

hep-ph2025★ 14 cited

Bubble wall dynamics from nonequilibrium quantum field theory

Wen-Yuan Ai, Matthias Carosi, Bjorn Garbrecht +2

We derive the coupled dynamics between the bubble wall and the plasma from first principles using nonequilibrium quantum field theory. The commonly used equation of motion of the b…

hep-ph2024

Piecewise linear potentials for false vacuum decay and negative modes

Wen-Yuan Ai, Jean Alexandre, Sarben Sarkar

We study bounce solutions and associated negative modes in the class of piecewise linear triangular-shaped potentials that may be viewed as approximations of smooth potentials. In…

hep-th2024

The QCD theta-parameter in canonical quantization

Wen-Yuan Ai, Bjorn Garbrecht, Carlos Tamarit

The role of the QCD theta-parameter is investigated in pure Yang-Mills theory in the spacetime given by the four-dimensional Euclidean torus. While in this setting the introduction…

hep-th2024★ 6 cited

Double-well instantons in finite volume

Wen-Yuan Ai, Jean Alexandre, Matthias Carosi +2

Assuming a toroidal space with finite volume, we derive analytically the full one-loop vacuum energy for a scalar field tunnelling between two degenerate vacua, taking into account…

hep-ph2023★ 14 cited

False vacuum decay rates, more precisely

Wen-Yuan Ai, Jean Alexandre, Sarben Sarkar

We develop a method for accurately calculating vacuum decay rates beyond the thin-wall regime in a pure scalar field theory at the one-loop level of the effective action. It accoun…