5 papers
Factorizing two-loop vacuum sum-integrals
Andrei I. Davydychev, Pablo Navarrete, York Schröder
We derive analytic results for scalar massless bosonic vacuum sum-integrals at two loops. Building upon a recent factorization proof of massive two-loop vacuum integrals, we are ab…
A new approach to determine the thermodynamics of deconfined matter to high accuracy
Tyler Gorda, Pablo Navarrete, Risto Paatelainen +2
We demonstrate that at finite density and sufficiently high temperatures, phase-quenched (PQ) lattice simulations combined with perturbation theory provide a new precision approach…
Cosmological phase transitions without high-temperature expansions
Pablo Navarrete, Risto Paatelainen, Kaapo Seppänen +1
We introduce a new framework for perturbatively computing equilibrium thermodynamic properties of cosmological phase transitions to high loop orders, using the full four-dimensiona…
Quark matter at four loops: hardships and how to overcome them
A. Kärkkäinen, P. Navarrete, M. Nurmela +3
Knowledge of the pressure of cold and dense quark matter (QM) is known to significantly constrain the equation of state of neutron-star matter, a quantity playing a key role in dec…
Perturbative QCD meets phase quenching: The pressure of cold quark matter
Pablo Navarrete, Risto Paatelainen, Kaapo Seppänen
Nonperturbative inequalities constrain the thermodynamic pressure of Quantum Chromodynamics (QCD) with its phase-quenched version, a Sign-Problem-free theory amenable to lattice tr…