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20242026
most citedFormation of twin compact stars in low-mass X-ray binaries: Implications on eccentric and isolated millisecond pulsar populations

8 citations · 26 across the 14 of their papers we have counts for

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nucl-th2026

Clustered Nature of Hot and Dense Nuclear Matter: A quantum statistical approach

G. Röpke, H. Pais, J. B. Natowitz +1

The equilibrium abundances of the light clusters H, H, He, He in hot nuclear matter at densities near the saturation density are of essential interest for nuclear p…

nucl-th2026

Confining density functional approach to the QCD phase diagram at low temperatures and thermal twin stars

David Blaschke, Oleksii Ivanytskyi

We present a density functional-based equation of state for warm, dense nuclear matter with a transition to deconfined quark matter for applications to simulations of supernova exp…

nucl-th2026

Universality and variability of the heavy r-process element abundance pattern from a nonequilibrium approach

David Blaschke, Friedrich K. Röpke, Gerd Röpke

A striking feature in the observed chemical composition of the majority of stars is the universality of the relative abundances of the heavy elements, although some outliers exist.…

nucl-th2025★ 2 cited

Rapidly Spinning Massive Pulsars as an Indicator of Quark Deconfinement

Christoph Gärtlein, Violetta Sagun, Oleksii Ivanytskyi +2

We study rotating hybrid stars, with particular emphasis on the effect of spin on the deconfinement phase transition and star properties. Our analysis is based on a hybrid equation…

nucl-th2025

Generalized Beth--Uhlenbeck entropy formula from the derivable approach

David Blaschke, Gerd Röpke, Gordon Baym

We derive a generalized Beth-Uhlenbeck formula for the entropy of a dense fermion system with strong two-particle correlations, including scattering states and bound states. We wor…

nucl-th2025★ 2 cited

Bayesian inference favors quark matter in neutron star interiors

Alexander Ayriyan, Oleksii Ivanytskyi, David Blaschke

We perform a physics-informed Bayesian analyses of the equation of state of hybrid neutron stars that incorporates color-flavor-locked quark matter modeled by a three-flavor non-lo…

nucl-th2025

Speed of sound of QCD matter at chiral crossover

Oleksii Ivanytskyi, David Blaschke, Gerd Röpke

Based on a generalized Beth-Uhlenbeck approach to thermodynamics of QCD motivated by cluster decomposition we present a unified equation of state of hot strongly interacting matter…

nucl-th2024★ 4 cited

Fastest spinning millisecond pulsars: indicators for quark matter in neutron stars?

Christoph Gärtlein, Violetta Sagun, Oleksii Ivanytskyi +2

We study rotating hybrid stars, with a particular emphasis on the effect of a deconfinement phase transition on their properties at high spin. Our analysis is based on a hybrid equ…