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Recent nonmagnetized studies of binary neutron star mergers have indicated the possibility of identifying equation of state features, such as a phase transition or a quark-hadron crossover, based on the frequency shift of the main peak in…

广义相对论与量子宇宙学 · 物理学 2024-11-05 Antonios Tsokaros , Jamie Bamber , Milton Ruiz , Stuart L. Shapiro

We introduce and study a class of models of free fermions hopping between neighbouring sites with random Brownian amplitudes. These simple models describe stochastic, diffusive, quantum, unitary dynamics. We focus on periodic boundary…

统计力学 · 物理学 2019-04-17 M. Bauer , D. Bernard , T. Jin

Possible strong first-order hadron-quark phase transitions in neutron star interiors leave an imprint on gravitational waves, which could be detected with planned third-generation interferometers. Given a signal from the late inspiral of a…

高能天体物理现象 · 物理学 2023-07-27 C. Mondal , M. Antonelli , F. Gulminelli , M. Mancini , J. Novak , M. Oertel

At the extreme densities reached in the core of neutron stars, it is possible that quark deconfined matter is produced. The formation of this new phase of strongly interacting matter is likely to occur via a first-order phase transition for…

核理论 · 物理学 2024-10-14 Mirco Guerrini , Giuseppe Pagliara , Alessandro Drago , Andrea Lavagno

We systematically investigate $f-$mode oscillations ($\ell$ = 2) in quarkyonic neutron stars with dark matter, employing the Cowling approximation within the framework of linearized general relativity. The relativistic mean-field approach…

高能天体物理现象 · 物理学 2025-08-07 D. Dey , Jeet Amrit Pattnaik , R. N. Panda , M. Bhuyan , S. K. Patra

We study the equation of state of neutron-star matter with color-spin molecular dynamics. The calculation includes the internal color and spin degrees of freedom and their time evolution. The matter composition, including strangeness under…

高能天体物理现象 · 物理学 2026-04-08 Nobutoshi Yasutake , Yuta Mukobara , Aaron Park , Su Houng Lee , Toshiki Maruyama

The recent direct observation of gravitational wave event $GW170817$ and its $GRB170817A$ signal has opened up a new window to study neutron stars and heralds a new era of Astronomy referred to as the Multimessenger Astronomy. Both…

We discuss the 3-window modeling of cold, dense QCD matter equations of state at density relevant to neutron star properties. At low baryon density, n_B < ~ 2n_s (n_s: nuclear saturation density), we utilize purely hadronic equations of…

高能物理 - 唯象学 · 物理学 2016-04-20 Toru Kojo

In order to actually see the hadron-quark transition happening in a neutron star, we point out and study two static conditions (the transition hadronic density must be lower than the neutron star maximum hadronic density; the neutron star…

核理论 · 物理学 2009-10-30 F. Grassi

We propose that the amplified density fluctuations by the vanishing sound velocity effect during the cosmological quark-hadron phase transition lead to quark-gluon plasma lumps decoupled from the expansion of the universe, which may evolve…

天体物理学 · 物理学 2009-10-31 Hee Il Kim , Bum-Hoon Lee , Chul H. Lee

We study the evolution of matter composition from nuclear to quark densities in the confining regime, by extending an ideal model of Quarkyonic matter, IdylliQ model, to multi-flavor systems including strangeness. The model provides a dual…

核理论 · 物理学 2026-03-24 Yuki Fujimoto , Toru Kojo , Larry McLerran

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 and analyze its properties in a wide range of temperatures.…

核理论 · 物理学 2025-08-01 Oleksii Ivanytskyi , David Blaschke , Gerd Röpke

Starting from the recognition that hadrons are not produced smoothly at phase transition, the fluctuation of spatial patterns is investigated by finding a measure of the voids that exhibits scaling behavior. The Ising model is used to…

核理论 · 物理学 2009-11-06 Rudolph C. Hwa , Qing-hui Zhang

We study the mean-field thermodynamics and the characteristics of the net-baryon number fluctuations at the phase boundaries for the chiral and deconfinement transitions in the Hybrid Quark-Meson-Nucleon model. The chiral dynamics is…

高能物理 - 唯象学 · 物理学 2018-02-16 Michał Marczenko , Chihiro Sasaki

We study fluctuations in the canonical ensemble, where the net baryon number is exactly conserved. The focus is on cumulants and factorial cumulants linked to the baryon and antibaryon multiplicities and their sum or difference in full…

核理论 · 物理学 2022-05-17 Bengt Friman , Krzysztof Redlich

The phase transition calculations are utilized for an in-depth understanding of the thermodynamics of the deconfinement transition to perform the best analysis of the QCD phase diagram. The phenomenological justifications for a mathematical…

核理论 · 物理学 2023-03-07 Mahboubeh Shahrbaf

We discuss the effects induced by the potential presence of hyperons in hot and ultra-dense matter within the context of neutron star mergers. Specifically, we address their effect on the dominant post-merger frequency of the gravitational…

高能物理 - 唯象学 · 物理学 2024-11-25 Hristijan Kochankovski , Angels Ramos , Laura Tolos , Sebastian Blacker , Andreas Bauswein

As neutron stars merge they can approach very high nuclear density. Here, we summarized recent results for the evolution and gravitational wave emission from binary neutron star mergers using a a variety of nuclear equations of state with…

高能天体物理现象 · 物理学 2023-02-28 Grant J. Mathews , Atul Kedia , Hee Il Kim , In-Saeng Suh

Many molecular junctions display stochastic telegraphic switching between two distinct current values, which is therefore an important source of fluctuations in nanoscale quantum transport. We investigate electronic fluctuations arising via…

介观与纳米尺度物理 · 物理学 2019-12-25 Samuel L. Rudge , Daniel S. Kosov

In this talk I discuss how a first order phase transition may proceed in rapidly expanding partonic matter produced in a relativistic heavy-ion collision. The resulting picture is that a strong collective flow of matter will lead to the…

高能物理 - 唯象学 · 物理学 2015-06-25 I. N. Mishustin