activity
20242026
collaborators

15 papers

astro-ph.CO2026

Magnetic monopoles produced by first-order phase transition

Yuefeng Di, Ligong Bian, Rong-Gen Cai

We present the first 3D lattice simulations of magnetic monopole production from a first-order phase transition, using the Press-Ryden-Spergel method, capturing the subsequent anni…

hep-ph2026

Nonequilibrium framework for first-order phase transitions

Jie Liu, Ligong Bian

The first-order phase transition is central to electroweak baryogenesis and gravitational wave generation, yet thermal equilibrium effective potential analyses cannot describe the…

hep-ph2026

Vacuum Decay Rate in D-dimensional Electroweak theories

Jingwei Wang, Ligong Bian

We present a systematic framework for computing the functional determinant contribution to vacuum decay rates in D-dimensional electroweak theories. It consistently incorporates qu…

hep-ph2026

Towards Accurate Gravitational Wave Predictions: Gauge-Invariant Nucleation in the Electroweak Phase Transition

Jie Liu, Renhui Qin, Ligong Bian

The vacuum decay in the early Universe should be gauge-invariant. In this work, we study the gauge dependence of the vacuum decay occurring through a first-order phase transition a…

hep-ph2025

Chiral magnetic effect amplified baryogenesis at first-order phase transitions

Hui Liu, Ligong Bian

In this study, we show that, in the background of the primordial magnetic field, the chiral magnetic effect effect can significantly amplify the chiral chemical potential sourced b…

hep-ph2025

Gauge-Invariant Bubble Nucleation and Gravitational Waves from First-Order Electroweak Phase Transitions

Jie Liu, Renhui Qin, Ligong Bian

A long-standing problem in electroweak phase transition studies is the spurious gauge dependence of bubble nucleation rate calculations, which introduces large systematic uncertain…

hep-ph2025

Impact of Primordial Magnetic Fields on the First-Order Electroweak Phase Transition

Yuefeng Di, Ligong Bian, Rong-Gen Cai

We numerically study how the primordial magnetic field affects the first-order electroweak phase transition in the early Universe. We observe that: 1) the phase transition process…

hep-th2025

False Vacuum Decay across the Quantum-to-Thermal Crossover: A Comparison of Real-Time Observables

Haiyang Wang, Renhui Qin, Ligong Bian

We develop a real-time Wigner-functional lattice framework with positive Hartree-Gaussian initial sampling and introduce a connected-cluster survival criterion for extracting false…

hep-ph2025

Numerical simulations on First-order phase transition through thermal fluctuation

Ligong Bian, Yuefeng Di, Yongtao Jia +2

In this Letter, we numerically present the possibility of the first-order phase transition occurring through the thermal fluctuation in the early universe. We find that when the te…

hep-ph2025

Phase Transitions in the Early Universe: Impacts on BBN and CMB Observables

Rui Xu, Jiachen Lu, Shihao Deng +1

We explore the effects of low-scale cosmological first-order phase transitions on Big Bang Nucleosynthesis (BBN) and Cosmic Microwave Background (CMB) anisotropy and distortion. We…

hep-ph2025

Theoretical Uncertainties in First-Order Electroweak Phase Transitions

Yongzhao Zhu, Jie Liu, Renhui Qin +1

We systematically investigate theoretical uncertainties in perturbative analyses of first-order electroweak phase transitions (EWPT). Utilizing the Standard Model Effective Field T…

hep-ph2024

Baryogenesis Induced by Magnetic Field Effects During the Electroweak Phase Transition

Yuefeng Di, Ligong Bian, Rong-Gen Cai

We numerically investigate the first-order electroweak phase transition in the background of a hypermagnetic field with three-dimensional lattice simulation. The generation of bary…

hep-ph2024

Baryogenesis via the Chiral Magnetic Effect in a First-Order Electroweak Phase Transition

Hui Liu, Renhui Qin, Ligong Bian

In this paper, we investigate the generation of the baryon asymmetry of the universe during the first-order electroweak phase transition. We first study the generation of the helic…

hep-ph2024

First-order Electroweak phase transition with Gauge-invariant approach

Renhui Qin, Ligong Bian

We study the electroweak phase transition dynamics with a three-dimensional standard model effective field theory under a gauge-invariant approach. We observe that, at the two-loop…

hep-ph2024

First-order Electroweak phase transition at finite density

Renhui Qin, Ligong Bian

We study the Electroweak phase transition with the Standard Model effective field theory at finite temperature and finite density. Utilizing the dimensional reduction approach, we…