97 citations · 503 across the 25 of their papers we have counts for
26 papers
Thermoelectric coefficients of two-flavor quark matter from the Kubo formalism
Harutyun Gabuzyan, Arus Harutyunyan, Armen Sedrakian
The hot quark matter created in heavy-ion collision experiments can exhibit strong temperature and chemical-potential gradients, which in turn can generate electric fields through…
Impact of positrons on electrical conductivity of hot and dense astrophysical plasma
Tigran Petrosyan, Arus Harutyunyan, Armen Sedrakian
We study the influence of positrons on the outer crusts of neutron stars and the interiors of white dwarfs, introducing them as a novel component in both the composition of matter…
Thermal conduction and thermopower of a warm neutron star crust in magnetic fields
Henrik Danielyan, Arus Harutyunyan, Armen Sedrakian
We compute the thermal conductivity and thermopower of the inner crust of compact stars over a broad temperature-density domain relevant to proto-neutron stars, binary neutron-star…
Bulk Viscosity of Two-Flavor Color Superconducting Quark Matter in Neutron Star Mergers
Mark Alford, Arus Harutyunyan, Armen Sedrakian +1
This work investigates the bulk viscosity of warm, dense, neutrino-transparent, color-superconducting quark matter, where damping of density oscillations in the kHz frequency range…
Generalized relativistic second-order dissipative hydrodynamics: coupling different rank tensors
Arus Harutyunyan, Armen Sedrakian
In this work, we extend the formalism of second-order relativistic dissipative hydrodynamics, developed previously using Zubarev's non-equilibrium statistical operator formalism. B…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Thermal Conductivity and Thermal Hall Effect in Dense Electron-Ion Plasma
Arus Harutyunyan, Armen Sedrakian
In this study, we examine thermal conductivity and the thermal Hall effect in electron-ion plasmas relevant to hot neutron stars, white dwarfs, and binary neutron star mergers, foc…
Bulk viscosity of two-color superconducting quark matter in neutron star mergers
Mark Alford, Arus Harutyunyan, Armen Sedrakian +1
We study the bulk viscosity of moderately hot and dense, neutrino-transparent color superconducting quark matter arising from weak-interaction-driven direct URCA processes. The qua…
Electrical conductivity of warm neutron star crust in magnetic fields: Neutron-drip regime
Arus Harutyunyan, Armen Sedrakian, Narine T. Gevorgyan +1
We compute the anisotropic electrical conductivity tensor of the inner crust of a compact star at non-zero temperature by extending a previous work on the conductivity of the outer…
Bulk viscosity from Urca processes: matter in the neutrino-transparent regime
Mark Alford, Arus Harutyunyan, Armen Sedrakian
We study the bulk viscosity of moderately hot and dense, neutrino-transparent relativistic matter arising from weak-interaction direct Urca processes. This work parallels ou…
Phenomenological Relativistic Second-Order Hydrodynamics for Multiflavor Fluids
Arus Harutyunyan, Armen Sedrakian
In this work, we perform a phenomenological derivation of the first- and second-order relativistic hydrodynamics of dissipative fluids. To set the stage, we start with a review of…
Bulk Viscosity of Relativistic Matter in Neutron-Star Mergers
Mark Alford, Arus Harutyunyan, Armen Sedrakian
We discuss the bulk viscosity of hot and dense matter arising from weak-interaction direct Urca processes. We consider two regimes of interest: (a) the neutrino-transparent…
Delta-resonances and hyperons in proto-neutron stars and merger remnants
Armen Sedrakian, Arus Harutyunyan
The equation of state (EoS) and composition of dense and hot -resonance admixed hypernuclear matter is studied under conditions that are characteristic of neutron star binary me…
Equation of state and composition of proto-neutron stars and merger remnants with hyperons
Armen Sedrakian, Arus Harutyunyan
Finite-temperature equation of state (EoS) and the composition of dense nuclear and hypernuclear matter under conditions characteristic of neutron star binary merger remnants and s…
Relativistic second-order dissipative hydrodynamics from Zubarev's non-equilibrium statistical operator
Arus Harutyunyan, Armen Sedrakian, Dirk H. Rischke
We present a new derivation of relativistic second-order dissipative hydrodynamics for quantum systems using Zubarev's non-equilibrium statistical-operator formalism. This is achie…
Bulk viscosity from Urca processes: matter in the neutrino-trapped regime
Mark Alford, Arus Harutyunyan, Armen Sedrakian
In this work, we extend our previous study of the bulk viscosity of hot and dense matter induced by the Urca processes in the neutrino trapped regime to matter by addi…
Bulk Viscous Damping of Density Oscillations in Neutron Star Mergers
Mark Alford, Arus Harutyunyan, Armen Sedrakian
In this paper, we discuss the damping of density oscillations in dense nuclear matter in the temperature range relevant to neutron star mergers. This damping is due to bulk viscosi…
On the importance of resistivity and Hall effect in MHD simulations of binary neutron star mergers
Arus S. Harutyunyan
We examine the range of rest-mass densities, temperatures and magnetic fields involved in simulations of binary neutron star mergers (BNSM) and identify the conditions under which…
Bulk viscosity of baryonic matter with trapped neutrinos
Mark Alford, Arus Harutyunyan, Armen Sedrakian
We study bulk viscosity arising from weak current Urca processes in dense baryonic matter at and beyond nuclear saturation density. We consider the temperature regime where neutrin…
Bulk Viscosity of Hot Quark Plasma from Non-Equilibrium Statistical Operator
Arus Harutyunyan, Armen Sedrakian
We provide a discussion of the bulk viscosity of two-flavor quark plasma, described by the Nambu--Jona-Lasinio model, within the framework of Kubo-Zubarev formalism. This discussio…
Relativistic Dissipative Fluid Dynamics from Non-Equilibrium Statistical Operator
Arus Harutyunyan, Armen Sedrakian, Dirk H. Rischke
We present a new derivation of second-order relativistic dissipative fluid dynamics for quantum systems using Zubarev's formalism for the non-equilibrium statistical operator. In p…
Electrical Resistivity and Hall Effect in Binary Neutron-Star Mergers
Arus Harutyunyan, Antonios Nathanail, Luciano Rezzolla +1
We examine the range of rest-mass densities, temperatures and magnetic fields involved in simulations of binary neutron-star mergers and identify the conditions under which the ide…
Bulk viscosity of two-flavor quark matter from the Kubo formalism
Arus Harutyunyan, Armen Sedrakian
We study the bulk viscosity of quark matter in the strong coupling regime within the two-flavor Nambu--Jona-Lasinio model. The dispersive effects that lead to non-zero bulk viscosi…
Transport coefficients of two-flavor quark matter from the Kubo formalism
Arus Harutyunyan, Dirk H. Rischke, Armen Sedrakian
The transport coefficients of quark matter at non-zero chemical potential and temperature are computed within the two-flavor Nambu--Jona-Lasinio model. We apply the Kubo formalism…