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Critical phenomena in phase transitions of strongly interacting matter, governed by quantum chromodynamics, are inherently encoded in the fluctuations of conserved charges. In this work, we study the net-baryon number density fluctuations,…

High Energy Physics - Phenomenology · Physics 2024-07-16 Michał Marczenko

Preliminary data from the Beam-Energy Scan II measurements by the STAR Collaboration at the Relativistic Heavy Ion Collider suggest a dip in the fourth-to-second-order cumulant ratio when plotted vs. beam energy. At the same energy range…

High Energy Physics - Phenomenology · Physics 2024-07-30 Oleh Savchuk

We investigate the chemical potential and baryon number density of the hadron-quark phase transition in neutron star matter. The hadron matter is described with relativistic mean field theory, and the quark matter is described with the…

Nuclear Theory · Physics 2019-09-04 Zhan Bai , Yu-xin Liu

Current fluctuations generated by tunnel junctions are known to be non-Gaussian. However, this property is lost when fluctuations are measured at high frequency and limited bandwidth. We show that the quadratures of the electric field…

Mesoscale and Nanoscale Physics · Physics 2020-07-08 Pierre Février , Christian Lupien , Bertrand Reulet

We study radial oscillations of hybrid neutron stars composed of hadronic external layers followed by a quark matter core. We employ a density-dependent relativistic mean-field model including hyperons and ${\Delta}$ baryons to describe…

We investigate many-body properties of equally populated three-component fermions with attractive three-body contact interaction in one dimension. A diagrammatic approach suggests the possible occurrence of Cooper triples at low…

Quantum Gases · Physics 2024-03-20 Hiroyuki Tajima , Shoichiro Tsutsui , Takahiro M. Doi , Kei Iida

The existence of quark matter inside the heaviest neutron stars has been the topic of numerous recent studies, many of them suggesting that a phase transition to strongly interacting conformal matter inside neutron stars is feasible. Here…

High Energy Astrophysical Phenomena · Physics 2023-08-04 János Takátsy , Péter Kovács , György Wolf , Jürgen Schaffner-Bielich

We extend the quark mean-field (QMF) model for nuclear matter and study the possible presence of quark matter inside the cores of neutron stars. A sharp first-order hadron-quark phase transition is implemented combining the QMF for the…

Nuclear Theory · Physics 2020-11-30 Zhiqiang Miao , Ang Li , Zhenyu Zhu , Sophia Han

When baryon-quark continuity is formulated in terms of a topology change without invoking "explicit " QCD degrees of freedom at a density higher than twice the nuclear matter density $n_0$ the core of massive compact stars can be described…

Nuclear Theory · Physics 2021-05-03 Yong-Liang Ma , Mannque Rho

We study the dynamics of the quark-hadron transition for a scenario in which the Universe is matter dominated and a large amount of entropy is generated by decaying particles of mass 1--10 TeV, as suggested by a large class of…

High Energy Physics - Phenomenology · Physics 2009-10-22 Ornella Pantano , Antonio Riotto

The constituents in a class of active matter systems change their directions of motion by being influenced by the velocities of the neighbors. Such systems may undergo phase transitions, with respect to ordering in the velocity field, as…

Statistical Mechanics · Physics 2025-02-11 Sohini Chatterjee , Sohom Das , Purnendu Pathak , Tanay Paul , Subir K. Das

Transmon qubits arise from the quantization of nonlinear resonators, systems that are prone to the buildup of strong, possibly chaotic, fluctuations. Such instabilities will likely affect fast gate operations which involve the transient…

We discuss stiffening of matter in quark-hadron continuity. We introduce a model that relates quark wave functions in a baryon and the occupation probability of states for baryons and quarks in dense matter. In a dilute regime, the confined…

Nuclear Theory · Physics 2021-10-20 Toru Kojo

I explore various scenarios for the phase transition within neutron-star matter. I do so by generating large model-agnostic ensemble using Gaussian processes, both with and without explicit inclusion of first-order phase transitions…

Nuclear Theory · Physics 2025-06-05 Oleg Komoltsev

We present a new perspective on thermal and quantum phase transitions (QPT) in $(2+1)$-dimensional quantum chromodynamics based on symmetries, topology, and quantum dynamical structure of the baryon ground state in the large $N_c$ limit for…

High Energy Physics - Theory · Physics 2019-04-25 Laith H. Haddad

Recent inference results of the sound velocity in the cores of neutron stars are summarized. Implications for the equation of state and the phase structure of highly compressed baryonic matter are discussed. In view of the strong…

Nuclear Theory · Physics 2024-06-11 Len Brandes , Wolfram Weise

The cores of massive neutron stars offer a unique environment for the nuclear matter at intermediate density in the universe. The global characteristics of a neutron star, as well as the gravitational waves emitted from the mergers of two…

High Energy Astrophysical Phenomena · Physics 2025-03-25 Ling-Jun Guo , Wen-Cong Yang , Yong-Liang Ma , Yue-Liang Wu

We theoretically investigate a non-relativistic trace anomaly and its impact on the low-temperature equation of state in spatially one-dimensional three-component fermionic systems with a three-body interaction, which exhibit a non-trivial…

High Energy Physics - Phenomenology · Physics 2025-06-13 Hiroyuki Tajima , Kei Iida , Haozhao Liang

We build upon the remarkable, model independent constraints on the equation of state of dense baryonic matter established recently by Annala et al. [1]. Using the quark-meson coupling model, an approach to nuclear structure based upon the…

Nuclear Theory · Physics 2021-03-17 T. F. Motta , P. A. M. Guichon , A. W. Thomas

The region of large net-baryon densities in the QCD phase diagram is expected to exhibit a first-order phase transition. Experimentally, its study will be one of the primaryobjectives for the upcoming FAIR accelerator. We model the…

High Energy Physics - Phenomenology · Physics 2015-06-23 Christoph Herold , Marlene Nahrgang , Yupeng Yan , Chinorat Kobdaj