Article
Astronomy & Astrophysics
V. G. Bornyakov, V. A. Goy, V. K. Mitrjushkin, R. N. Rogalyov
Summary: This study investigates the chromoelectric-chromomagnetic asymmetry of the A(2) gluon condensate and the infrared behavior of gluon propagators at T≈T-c in the Landau-gauge SU(3) lattice gauge theory. Significant correlations between the real part of the Polyakov loop, the asymmetry, and the longitudinal propagator are found, enabling the determination of critical behavior. Screening masses in different Polyakov-loop sectors are obtained, and the dependence of chromoelectric and chromomagnetic interactions on the choice of Polyakov-loop sector in the deconfinement phase is discussed.
Article
Astronomy & Astrophysics
Haresh Raval
Summary: The study reveals two phases in SU(N) QCD in a particular quadratic gauge, and proposes a novel application and extension of the FFBRST technique to transform the deconfined phase to the confined phase. By changing the BRST invariant phase to BRST non invariant phase in an unconventional way, a unique field theoretic meaning is achieved through this technique.
Article
Physics, Nuclear
S. Chagdaa, B. Purev, E. Galsandorj
Summary: Investigated the chromoelectric and chromomagnetic field and energy density distributions produced by a quark-antiquark pair in the presence of dynamical fermions near the deconfinement phase transition. Found that dynamical fermions widen the flux tube in a short separation range before hadronization occurs. The flux tube structure persists in the deconfined phase and gradually melts after reaching a certain temperature above the critical temperature.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2021)
Article
Multidisciplinary Sciences
Grigor Alaverdyan
Summary: The investigation reveals that the magnitude of the vector coupling constant has a significant impact on the appearance of strange quarks, while the assumption of absolute stability of strange quark matter within the NJL model is not achieved. By applying Maxwell's construction, it is demonstrated that a larger vector coupling leads to higher EOS stiffness and phase transition pressure for quark matter, indicating the stability of the infinitesimal quark phase formed at the center of neutron stars.
Article
Physics, Multidisciplinary
Xiaofan Zhou, Gang Chen, Suo-Tang Jia
Summary: This study proposes a scheme to realize SU(3) spin-orbit coupled three-component fermions in a one-dimensional optical lattice, investigating their topological properties and the impact of interactions on the system. Using advanced numerical methods, the study characterizes interaction-induced topological phase transitions and explores emerging quantum phases in the system, providing insights for exploring novel quantum physics induced by SOC with SU(N) symmetry.
Article
Multidisciplinary Sciences
Kouji Kashiwa
Summary: This paper discusses the thermal phase structure of QCD at zero real chemical potential from the perspective of canonical sectors. It proposes a convenient quantity to determine the structural changes of the canonical sectors and qualitatively discusses it using lattice QCD predictions. Numerical estimations are also conducted using a simple QCD effective model to show a sharp change in canonical sectors near the Roberge-Weiss endpoint temperature at mu(R)=0, highlighting the importance of quark number density behavior in clarifying thermal QCD properties.
Article
Astronomy & Astrophysics
Yuki Fujimoto, Kenji Fukushima, Yoshimasa Hidaka
Summary: This study discusses the impact of rapid rotation on the phase diagram of hadronic matter, finding that rotation decreases the deconfinement temperature. However, there is still controversy surrounding how the deconfinement temperature changes with angular velocity.
Article
Astronomy & Astrophysics
S. Borsanyi, R. Kara, Z. Fodor, D. A. Godzieba, P. Parotto, D. Sexty
Summary: We performed large scale simulations to characterize the transition in quenched QCD and found it to be a first order transition. With unprecedented precision, we obtained quantitative results and showed an algorithm that can overcome supercritical slowing down.
Article
Astronomy & Astrophysics
Nelson R. F. Braga, O. C. Junqueira
Summary: The confinement/deconfinement transition in the holographic AdS/QCD approach is associated with the Hawking-Page transition from a thermal anti-de Sitter (AdS) space to an AdS black hole. In the case of the hard wall model, the thermal transition occurs in planar AdS due to the introduction of an infrared cut-off. By investigating the configuration entropy (CE) of asymptotically AdS geometries, a proportional relationship between CE and log(T) is found, indicating a simple connection between configuration and thermodynamic entropies.
Article
Physics, Multidisciplinary
V. G. Bornyakov, I. E. Kudrov
Summary: After fixing the Maximal Abelian gauge in SU(3) lattice gluodynamics, the nonabelian gauge field is decomposed into the Abelian field created by Abelian monopoles and the modified nonabelian field with monopoles removed. The respective static potentials in the fundamental representation are calculated, and it is shown that the sum of these potentials approximates the nonabelian static potential with good precision at all distances considered. Comparison with other ways of decomposition is made.
Article
Physics, Particles & Fields
N. Karimimanesh, S. Deldar, Z. Asmaee
Summary: This study investigates the topological defects of the SU(3) gauge group, such as monopoles, vortices, and chains, by using its SU(2) subgroups. The chains of monopoles and vortices are identified by applying appropriate successive gauge transformations to the subgroups. The study examines and compares the defects and Lagrangian of the SU(3) group with the monopoles obtained using the Cho decomposition method. The relations and possible interactions between the defects of the subgroups are discussed by comparing the results with those obtained directly for the SU(3) gauge group.
EUROPEAN PHYSICAL JOURNAL C
(2023)
Article
Astronomy & Astrophysics
Dallas DeMartini, Edward Shuryak
Summary: The study shows that interactions of a semiclassical ensemble of dyons in SU(3) Yang-Mills theory generate the expected first-order deconfinement phase transition, and the properties of the ensemble, including correlations and topological susceptibility, are studied over a range of temperatures.
Article
Physics, Multidisciplinary
Jeremy R. Green, Andrew D. Hanlon, Parikshit M. Junnarkar, Hartmut Wittig
Summary: This study presents the first exploration of baryon-baryon interactions in the continuum limit of lattice QCD, revealing unexpectedly large lattice artifacts impacting the binding energy. By applying variational methods and Luscher's finite-volume quantization conditions, scattering phase shifts can be determined from the spectrum, leading to an estimate of the binding energy of the H dibaryon in three-flavor QCD.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Nuclear
Michal Barej, Adam Bzdak
Summary: In relativistic heavy-ion collisions, the fluctuations in the number of stopped baryons cause longitudinal fluctuations in the fireball density, resulting in event-by-event modifications of the proton rapidity density distribution. The multiparticle rapidity correlation functions are derived using the varying distribution width of the proton rapidity density in central Au + Au collisions at low energies. The calculated cumulant ratios depend strongly on the size of the rapidity interval and are discussed in relation to the recent STAR Collaboration results.
Article
Astronomy & Astrophysics
Claudio Bonati, Marco Cardinali, Massimo D'Elia, Matteo Giordano, Fabrizio Mazziotti
Summary: The study shows that the reconfinement phase transition in trace deformed SU(3) Yang-Mills theory is first order, similar to the standard thermal phase transition. The behavior of thermal monopoles and the localization properties of Dirac eigenmodes are investigated, indicating a strict link between them in both reconfinement and standard confinement transitions.
Article
Physics, Nuclear
Nikita Astrakhantsev, V. V. Braguta, A. Yu Kotov, D. D. Kuznedelev, A. A. Nikolaev
Summary: This study explores the properties of QCD at nonzero chiral density introduced by chiral chemical potential. The results indicate a potential connection between topological fluctuations and the strength of confinement in QCD.
EUROPEAN PHYSICAL JOURNAL A
(2021)
Article
Physics, Particles & Fields
N. Yu Astrakhantsev, V. V. Braguta, N. Kolomoyets, A. Yu Kotov, D. D. Kuznedelev, A. A. Nikolaev, A. Roenko
Summary: This paper focuses on studying the properties of QCD under extreme conditions through lattice simulations, including the QCD phase diagram in external magnetic fields and nonzero baryonic density, as well as the equation of state of dense quark-gluon matter affected by strong magnetic fields. Additionally, lattice simulations of rotating gluodynamics are performed to determine how rotation influences the confinement/deconfinement transition.
PHYSICS OF PARTICLES AND NUCLEI
(2021)
Article
Physics, Particles & Fields
Andrey Yu Kotov, Daniel Nogradi, Kalman K. Szabo, Lorinc Szikszai
Summary: In this study, we continue to investigate the dependence on the number of fermions by extending simulations to N-f = 7, 8, 9, 10. We also examine the N-f dependence of finite volume effects and a specific lattice artifact phase related to staggered fermions.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Andrey Yu Kotov, Maria Paola Lombardo, Anton Trunin
Summary: In this study, the scaling properties of the finite temperature QCD phase transition were investigated for different light quark masses using simulations of Wilson fermions. An order parameter free from linear contributions in mass was identified, which proved useful for assessing universal behavior. The results were found to be compatible with the 3D O (4) universality class for the physical pion mass and temperatures within the range of 120 MeV to 300 MeV.
Article
Multidisciplinary Sciences
Andrey Yu Kotov, Maria Paola Lombardo, Anton Trunin
Summary: The study focuses on the hot QCD transition with varying number of flavours, exploring different universality classes and the transition from scaling window to mean field behavior. It summarizes the properties of the transition process, including first order transitions, cosmological applications, and the essential singularity at the onset of the conformal window predicted by the functional renormalisation group.
Correction
Physics, Particles & Fields
Andrey Yu. Kotov, Daniel Nogradi, Kalman K. Szabo, Lorinc Szikszai
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
V. V. Braguta, A. Yu Kotov, D. D. Kuznedelev, A. A. Roenko
Summary: In this study, it was found through lattice simulation that the critical temperature of the confinement-deconfinement transition in gluodynamics increases with increasing angular velocity. This conclusion is independent of the boundary conditions used and is believed to be a universal property of gluodynamics.
Correction
Physics, Nuclear
A. A. Roenko, K. A. Sveshnikov
PHYSICS OF ATOMIC NUCLEI
(2020)
