7 papers
Static linear response of hot and dense QCD matter to electromagnetic fields: Leading hard and soft QCD corrections
Osvaldo Ferreira, Eduardo S. Fraga, Tyler Gorda +3
We compute the static electromagnetic susceptibilities of a hot and dense quark-gluon plasma using perturbative Quantum Chromodynamics (QCD). Our evaluation includes the leading $\…
QED cross sections in strong magnetic fields
Olavi Kiuru, Joonas Nättilä, Risto Paatelainen +1
The magnetospheres of magnetars, a class of highly magnetized neutron stars, host magnetic fields exceeding the Schwinger limit, where Quantum Electrodynamics (QED) becomes nonline…
A new approach to determine the thermodynamics of deconfined matter to high accuracy
Tyler Gorda, Pablo Navarrete, Risto Paatelainen +3
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…