263 citations · 1.2k across the 33 of their papers we have counts for
34 papers
On temporal entropy and the complexity of computing the expectation value of local operators after a quench
Stefano Carignano, Carlos Ramos Marimón, Luca Tagliacozzo
We study the computational complexity of simulating the time-dependent expectation value of a local operator in a one-dimensional quantum system by using temporal matrix product st…
Accounting for plasma constituent mass effects in heavy fermion energy loss calculations in hot QED and QCD
Marc Comadran, Cristina Manuel, Stefano Carignano
We evaluate the collisional energy loss of a energetic fermion with mass propagating through a hot QED plasma with temperature , including mass corrections, that is, keeping…
Inhomogeneous pion condensed phase hosting topologically stable baryons
Massimo Mannarelli, Fabrizio Canfora, Stefano Carignano +2
We discuss the inhomogeneous pion condensed phase within the framework of chiral perturbation theory. We show how the general expression of the condensate can be obtained solving t…
Power corrections and gradient expansion in QED transport theory
Stefano Carignano, Cristina Manuel
The hard thermal loop (HTL) effective field theory of QED can be derived from the classical limit of transport theory, corresponding to the leading term in a gradient expansion of…
Measuring chiral imbalance with collisional energy loss
Stefano Carignano, Cristina Manuel
We compute the collisional energy loss of an {energetic} massive fermion crossing a chiral plasma at finite temperature characterized by an imbalance between the populations of lef…
Pion crystals hosting topologically stable baryons
Fabrizio Canfora, Stefano Carignano, Marcela Lagos +2
We construct analytic (3+1)-dimensional inhomogeneous and topologically non-trivial pion systems using chiral perturbation theory. We discuss the effect of isospin asymmetry with v…
Heavy Quarkonium at finite temperature and chemical potential
Stefano Carignano, Joan Soto
We generalize known results for heavy quarkonium in a thermal bath to the case of a finite baryonic density, and provide a number of formulas for the energy shift and decay width t…
Inhomogeneous phases in the quark-meson model with explicit chiral-symmetry breaking
Michael Buballa, Stefano Carignano, Lennart Kurth
We investigate the existence of inhomogeneous chiral phases in the quark-meson model with explicit chiral-symmetry breaking. We find that the inhomogeneous region shrinks with incr…
Inhomogeneous chiral condensates in three-flavor quark matter
Stefano Carignano, Michael Buballa
We investigate the effect of strange quark degrees of freedom on the formation of inhomogeneous chiral condensates in a three-flavor Nambu--Jona-Lasinio model in mean-field approxi…
The HTL Lagrangian at NLO: the photon case
Stefano Carignano, Margaret E. Carrington, Joan Soto
We calculate the two loop hard correction to the photon self-energy in an electron-positron plasma (EPP) for arbitrary soft momenta. This provides the only missing ingredient to ob…
Chiral kinetic theory from the on-shell effective theory: derivation of collision terms
Stefano Carignano, Cristina Manuel, Juan M. Torres-Rincon
We show that the on-shell effective theory (OSEFT) is the quantum field theory counterpart of a Foldy-Wouthuysen diagonalization of relativistic quantum mechanics for massless ferm…
Influence of quark masses and strangeness degrees of freedom on inhomogeneous chiral phases
Michael Buballa, Stefano Carignano
Several model calculations of the QCD phase structure at nonzero temperature and density suggest that in certain regions of the phase diagram inhomogeneous condensates are favored…
Damping rate of a fermion in ultradegenerate chiral matter
Stefano Carignano, Cristina Manuel
We compute the damping rate of a fermion propagating in a chiral plasma when there is an imbalance between the densities of left- and right-handed fermions, after generalizing the…
Inhomogeneous chiral phases away from the chiral limit
Michael Buballa, Stefano Carignano
The effect of explicit chiral-symmetry breaking on inhomogeneous chiral phases is studied within a Nambu-Jona-Lasinio model with nonzero current quark mass. Generalizing an earlier…
Consistent Relativistic Chiral Kinetic Theory: a derivation from OSEFT
Stefano Carignano, Cristina Manuel, Juan M. Torres-Rincon
We formulate the on-shell effective field theory (OSEFT) in an arbitrary frame and study its reparametrization invariance (RI), which ensures that it is respectful of Lorentz symme…
Influence of vector interactions on the favored shape of inhomogeneous chiral condensates
Stefano Carignano, Marco Schramm, Michael Buballa
We update a previous study of the effects of vector interactions in the Nambu--Jona-Lasinio model on the formation of inhomogeneous chiral symmetry breaking condensates. In particu…
Power corrections to the HTL effective Lagrangian of QED
Stefano Carignano, Cristina Manuel, Joan Soto
We present compact expressions for the power corrections to the hard thermal loop (HTL) Lagrangian of QED in space dimensions. These are corrections of order , valid f…
Crystalline phases by an improved gradient expansion technique
Stefano Carignano, Filippo Anzuini, Omar Benhar +1
We develop an innovative technique for studying inhomogeneous phases with a spontaneous broken symmetry. The method relies on the knowledge of the exact form of the free energy in…
Spatially modulated chiral condensates
Stefano Carignano
I discuss some properties of spatially dependent chiral condensates, focusing on one-dimensional modulations. After briefly introducing a generic formalism for studying inhomogeneo…
Scrutinizing the pion condensed phase
Stefano Carignano, Luca Lepori, Andrea Mammarella +2
When the isospin chemical potential exceeds the pion mass, charged pions condense in the zero-momentum state forming a superfluid. Chiral perturbation theory provides a very powerf…
Consistent parameter fixing in the quark-meson model with vacuum fluctuations
Stefano Carignano, Michael Buballa, Wael Elkamhawy
We revisit the renormalization prescription for the quark-meson model in an extended mean-field approximation, where vacuum quark fluctuations are included. At a given cutoff scale…
Equation of state of imbalanced cold matter from chiral perturbation theory
Stefano Carignano, Andrea Mammarella, Massimo Mannarelli
We study the thermodynamic properties of matter at vanishing temperature for non-extreme values of the isospin chemical potential and of the strange quark chemical potential. From…
Color-superconductivity and inhomogeneous chiral symmetry breaking in isospin-asymmetric quark matter
Daniel Nowakowski, Stefano Carignano
We investigate the effects of isospin asymmetry on the competition between color-superconductivity and inhomogeneous chiral symmetry breaking in dense two-flavor quark matter using…
Inhomogeneous chiral symmetry breaking in dense neutron-star matter
Michael Buballa, Stefano Carignano
An increasing number of model results suggests that chiral symmetry is broken inhomogeneously in a certain window at intermediate densities in the QCD phase diagram. This could hav…