From QFT to Boltzmann: Freeze-in in the presence of oscillating condensates
arXiv:2310.08272 · doi:10.1007/JHEP02(2024)122
Abstract
Scalar dark matter (DM), and axions in particular, have an irreducible abundance of particles produced by freeze-in due to portal interactions with the Standard Model plasma in the early Universe. In addition, vacuum misalignment and other mechanisms can lead to the presence of a cold, oscillating condensate. Therefore, generically, the evolution of the DM in both forms, condensate and particles, needs to be studied simultaneously. In non-equilibrium quantum field theory, the condensate and particles are described by one- and two-point functions, respectively. The fundamental coupled equations of motion (EoMs) of these objects are non-local. To simplify the EoMs and bring them into a familiar form for relic abundance calculations, we perform a Markovianization process for a quasi-harmonically oscillating homogeneous condensate, leading to local EoMs for the particle distribution function and the envelope function of condensate oscillation. This reduces the dynamics to a pair of coupled Boltzmann equations, and we derive explicitly the form of the collision operators for all particle and condensate interactions.
arXiv comment40 pages, 3 figures; v2: refs updated, minor changes, to match the published version; v3: (after publication) minor typos corrected
References in corpus (57)
- Axion Cosmology
- Towards the Theory of Reheating After Inflation
- Reheating after Inflation
- Freeze-In Production of FIMP Dark Matter
- Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
- Universe Reheating after Inflation
- WISPy Cold Dark Matter
- Equilibrium State of a Massless Self-Interacting Scalar Field in the De Sitter Background
- Largest temperature of the radiation era and its cosmological implications
- Mathematical theory and numerical methods for Bose-Einstein condensation
- The Quark-Gluon Plasma: Collective Dynamics and Hard Thermal Loops
- Introduction to Nonequilibrium Quantum Field Theory
- Production of massive particles during reheating
- Dissipation via Particle Production in Scalar Field Theories
- Analytic and Numerical Study of Preheating Dynamics
- Dissipation coefficients from scalar and fermion quantum field interactions
- General dissipation coefficient in low-temperature warm inflation
- Quantum Leptogenesis I
- Inflaton Oscillations and Post-Inflationary Reheating
- Transport equations for chiral fermions to order \hbar and electroweak baryogenesis: Part I
- Transport equations for chiral fermions to order \hbar and electroweak baryogenesis: Part II
- Classical Fields Near Thermal Equilibrium
- Resonant Relaxation in Electroweak Baryogenesis
- Flavoured Leptogenesis in the CTP Formalism
- MSSM Electroweak Baryogenesis and Flavour Mixing in Transport Equations
- Quantum mechanics of baryogenesis
- Finite Number Density Corrections to Leptogenesis
- Resonance Transport and Kinetic Entropy
- Quantum Boltzmann Equations and Leptogenesis
- Dynamics of oscillating scalar field in thermal environment
- Kadanoff-Baym Approach to Flavour Mixing and Oscillations in Resonant Leptogenesis
- Flavored Quantum Boltzmann Equations
- Kinetic description of fermion flavor mixing and CP-violating sources for baryogenesis
- The Irreducible Axion Background
- PyUltraLight: A Pseudo-Spectral Solver for Ultralight Dark Matter Dynamics
- Nonequilibrium Dynamics of Scalar Fields in a Thermal Bath
- One-Loop Corrections to Bubble Nucleation Rate at Finite Temperature
- The Higgs Portal to Cosmology
- Fate of oscillating scalar fields in the thermal bath and their cosmological implications
- Two-fluid dynamics for a Bose-Einstein condensate out of local equilibrium with the non-condensate
- Why is there more matter than antimatter? Calculational methods for leptogenesis and electroweak baryogenesis
- Range of validity of transport equations
- Cosmological constraints on decaying axion-like particles: a global analysis
- Self-consistent solitons for vacuum decay in radiatively generated potentials
- The Boltzmann Equation from Quantum Field Theory
- Cutting rules at finite temperature
- Far from equilibrium dynamics of Bose-Einstein condensation for Axion Dark Matter
- Friendship in the Axiverse: Late-time direct and astrophysical signatures of early-time nonlinear axion dynamics
- Confronting Dark Matter Freeze-In during Reheating with Constraints from Inflation
- Simple Physical Approach to Thermal Cutting Rules
- Axion-Photon Conversion in 3D Media and Astrophysical Plasmas
- Cutting rules in the real time formalisms at finite temperature
- Self-consistent treatment of bubble nucleation at the electroweak phase transition
- Dark matter production and reheating via direct inflaton couplings: collective effects
- The self-consistent bounce: an improved nucleation rate
- Dissipation of oscillating scalar backgrounds in an FLRW universe
- False vacuum decay by self-consistent bounces in four dimensions
Cited by in corpus (8)
- Bubble wall dynamics from nonequilibrium quantum field theory
- New insights into axion freeze-in
- Non-thermal production of heavy vector dark matter from relativistic bubble walls
- t-channel dark matter at the LHC -- a whitepaper
- Is the effective potential, effective for dynamics?
- Fate of homogeneous -symmetric scalar condensates
- Effective field theory of particle mixing
- AliCPT Sensitivity to Cosmic Reheating