Article
Astronomy & Astrophysics
Wei Kou, Xiaopeng Wang, Xurong Chen
Summary: This paper applies Page's theory of black holes to investigate the entropy of a proton system for the first time, establishing the entanglement entropy relationship of protons. The calculations using Page's theory are well in agreement with recent measurements, verifying the accuracy of the proposed proton entanglement entropy model.
Article
Physics, Multidisciplinary
Zi Hong Liu, Weilun Jiang, Bin-Bin Chen, Junchen Rong, Meng Cheng, Kai Sun, Zi Yang Meng, Fakher F. Assaad
Summary: The fermion disorder operator reveals the entanglement information at quantum critical points, and its scaling behavior varies in different systems. Continuous symmetries can emerge in certain cases.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
Pouya Asadi, Varun Vaidya
Summary: We employ a variational method to compute the spectrum and parton distribution function of ground state hadrons in various gauge theories of 1 + 1 dimensions. Our approach minimizes a template function which is a combination of kinetic energy on the light cone for free-valence partons and Renyi entanglement entropy of biparton subsystems. The results indicate that hadrons in these theories minimize the proposed free energy. The success of this technique encourages its application to confining gauge theories in higher dimensions.
Article
Astronomy & Astrophysics
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
Summary: This article derives a general formula for the replica partition function in the vacuum state for a large class of interacting theories with fermions, and uses it to analyze the spatial entanglement of interacting Dirac fermions in two-dimensional QCD. Attention is paid to the issues of infrared cutoff dependence and gauge invariance. The Renyi entropy is calculated for a single interval using the rainbow dressed quark propagator and the contributions to order Oo1) are shown to come from the off-diagonal and off mass-shell mesonic T-matrix, with no contribution to the central charge. The construction is further extended to mesonic states on the light front and shown to probe the moments of the partonic PDFs for large light-front separations. The spatial entanglement entropy following from the Renyi entropy is found to be consistent with the Ryu-Takayanagi geometrical entropy using a soft-wall AdS3 model of two-dimensional QCD in vacuum and for small and large intervals.
Article
Astronomy & Astrophysics
G. S. Ramos, M. V. T. Machado
Summary: The dynamical entropy of dense gluonic states in high-energy proton-proton collisions is investigated using phenomenological models for the unintegrated gluon distribution. The corresponding transverse momentum probability distributions are evaluated in terms of rapidity, and the dynamical entropy density is obtained in the relevant rapidity range at the Large Hadron Collider. The total entropy density of the dense system is computed as a function of the rapidity evolution ??Y = Y ??? Y0, with theoretical uncertainties investigated and a comparison with related approaches in literature conducted.
Article
Astronomy & Astrophysics
S. Mahesh Chandran, S. Shankaranarayanan
Summary: In time-independent quantum systems, the entanglement entropy possesses a scaling symmetry that the energy of the system does not have. We extend this symmetry to time-dependent systems including coupled harmonic oscillators and quantum scalar fields. These time-dependent systems exhibit a dynamical scaling symmetry that preserves the evolution of various measures of quantum correlations. It is shown that instabilities in these systems can be quantified using scrambling time and Lyapunov exponents, and that the delayed decay of the Loschmidt echo is determined by inverted modes. We also discuss the implications of zero modes and inverted modes in time-dependent massive scalar fields in different spacetimes, such as cosmological and black hole spacetimes.
Article
Physics, Applied
Pei-Song He
Summary: The time evolution of the quantum particle's uncertainty product in position and momentum is studied when coupled with an external source. A simple toy model with a harmonic potential and a linear coupling to an equivalent harmonic oscillator is used. It is found that the long-time-averaged product increases with the coupling strength and diverges when one eigenmode of the coupled system becomes soft. The study also shows a finite jump in this quantity when a small coupling is introduced, compared to the uncoupled case. Similar behaviors are observed for the von Neumann entanglement entropy, which is calculated using a covariance matrix formalism. The interference of modes is found to be important in the main features of this work.
MODERN PHYSICS LETTERS B
(2023)
Article
Physics, Multidisciplinary
Georgios Styliaris, Namit Anand, Paolo Zanardi
Summary: The study presents exact analytical results for the bipartite OTOC, showing its relationship with operator entanglement and its impact on entangling power. Additionally, it explores the connection between long-time averages of the OTOC and eigenstate entanglement.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Particles & Fields
E. Gotsman, E. Levin
Summary: This paper introduces an approach based on the three gluon fusion mechanism to demonstrate the dependence of quarkonia production on the multiplicity of accompanying hadrons. It shows that the experimental data can be described, which has a dependence much steeper than that of the hadron multiplicity.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Astronomy & Astrophysics
Daniel L. Nedel
Summary: This work introduces new interaction terms between two SYK models, enabling the calculation of vacuum time dependent entanglement entropy in the conformal and large N limit. It is found that the vacuum evolves as a time dependent SU(2) squeezed state, and the time dependent entanglement entropy follows the same form as the Page curve of Black Hole formation and evaporation.
Article
Multidisciplinary Sciences
Dmitri E. Kharzeev
Summary: This article discusses quantum entanglement in high energy hadron interactions and proposes a Haar trace of the light-cone density matrix to explain the emergence of entanglement entropy. The research reveals a direct relationship between entanglement entropy and parton structure functions, with maximal entanglement at large rapidity. The probabilistic parton model breaks down when controlling the phases of Fock state components.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Astronomy & Astrophysics
Adam Balcerzak, Samuel Barroso-Bellido, Mariusz P. Dabrowski, Salvador Robles-Perez
Summary: By utilizing the third quantization formalism, the quantum entanglement of universes created in pairs within standard cosmology is studied. Entanglement quantities around key points of classical evolution are investigated, showing that entanglement entropy is finite at singularities and diverges at expansion maxima or minima. The degree of entanglement between each universe of a pair is parameterized by entanglement quantities, and alternative entanglement entropy measures behave similarly to markers of quantumness. The relation between entanglement entropy and the Hubble parameter is found to be logarithmic rather than polynomial.
Article
Physics, Multidisciplinary
Pengfei Zhang, Zhenhua Yu
Summary: In closed generic many-body systems, the process of information scrambling, which disperses local quantum information into highly nonlocal objects, is quantified by the growth of operator size. However, the impact of couplings to the environment on this process remains unexplored. In this study, we predict a dynamical transition in quantum systems with all-to-all interactions accompanied by an environment, separating two phases: a dissipative phase where information scrambling halts and an operator size decays with time, and a scrambling phase where dispersion of information persists, the operator size grows and saturates in the long-time limit. Our prediction is derived from a general argument based on epidemiological models and demonstrated analytically via solvable Brownian Sachdev-Ye-Kitaev models. We also provide evidence that suggests this transition is generic to quantum chaotic systems when coupled to an environment.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Thomas Schuster, Norman Y. Yao
Summary: In this study, a universal framework is provided to describe the scrambling of quantum information in open systems. It is predicted that the effect of open-system dynamics is fundamentally controlled by operator size distributions and independent of the microscopic error mechanism. This framework demonstrates that open quantum systems exhibit universal classes of information dynamics that fundamentally differ from their unitary counterparts.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
Ignacio Borsa, Daniel de Florian, Ivan Pedron
Summary: This article calculates the fully differential single-jet production in longitudinally polarized deep inelastic scattering (DIS) at next-to-next-to-leading-order (NNLO) accuracy, including both neutral-current and charged-current processes. The computation is performed using the projection-to-Born method, with the next-to-leading-order dijet calculation and the NNLO DIS structure functions as the main components. The article also analyzes its phenomenological consequences in the kinematics of the future Electron-Ion Collider.
Article
Physics, Particles & Fields
Marcin Bury, Andreas van Hameren, Hannes Jung, Krzysztof Kutak, Sebastian Sapeta, Mirko Serino
EUROPEAN PHYSICAL JOURNAL C
(2018)
Article
Physics, Particles & Fields
M. Hentschinski, A. Kusina, K. Kutak, M. Serino
EUROPEAN PHYSICAL JOURNAL C
(2018)
Article
Physics, Particles & Fields
Tolga Altinoluk, Nestor Armesto, Alex Kovner, Michael Lublinsky
EUROPEAN PHYSICAL JOURNAL C
(2018)
Article
Physics, Particles & Fields
Yanyan Bu, Tuna Demircik, Michael Lublinsky
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Yanyan Bu, Tuna Demircik, Michael Lublinsky
EUROPEAN PHYSICAL JOURNAL C
(2019)
Article
Physics, Particles & Fields
Yanyan Bu, Tuna Demircik, Michael Lublinsky
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Nestor Armesto, Fabio Dominguez, Alex Kovner, Michael Lublinsky, Vladimir V. Skokov
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Mirko Serino
EUROPEAN PHYSICAL JOURNAL C
(2020)
Article
Physics, Particles & Fields
Alex Kovner, Eugene Levin, Ming Li, Michael Lublinsky
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Alex Kovner, Eugene Levin, Michael Lublinsky
Summary: This study explores possible extensions of the t-channel and s-channel unitary model of high energy evolution in zero transverse dimensions. It suggests allowing the emission of more than one dipole in a single step, shows the behavior of particle multiplicity distribution, and discusses the influence of saturation on the parton cascade.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Lin Dai, Michael Lublinsky
Summary: This study computed the evolution kernels focusing on the effects due to finite quark masses, extending and improving the theoretical tools used in physics of gluon saturation.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Alex Kovner, Eugene Levin, Ming Li, Michael Lublinsky
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Tolga Altinoluk, Nestor Armesto, Alex Kovner, Michael Lublinsky, Elena Petreska
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
Article
Astronomy & Astrophysics
Nelson R. F. Braga, Octavio C. Junqueira
Summary: This study investigates the influence of rotation on the transition temperature of strongly interacting matter produced in non-central heavy ion collisions. By using a holographic description of an AdS black hole, the authors extend the analysis to the more realistic case where the matter spreads over a region around the rotational axis. The results show the coexistence of confined and deconfined phases and are consistent with the concept of local temperature in rotating frames developed by Tolman and Ehrenfest.
Article
Astronomy & Astrophysics
Bing Sun, Jiachen An, Zhoujian Cao
Summary: This paper investigates the effect of gravitational constant variation on the propagation of gravitational waves. By employing two analytical methods, the study finds that variations in the gravitational constant result in amplitude and phase corrections for gravitational waves, and the time variation of the gravitational constant can be constrained through the propagation of gravitational waves.
Article
Astronomy & Astrophysics
Abdellah Touati, Zaim Slimane
Summary: This letter presents the first study of Hawking radiation as a tunneling process within the framework of non-commutative gauge theory of gravity. The non-commutative Schwarzschild black hole is reconstructed using the Seiberg-Witten map and the star product. The emission spectrum of outgoing massless particles is computed using the quantum tunneling mechanism. The results reveal pure thermal radiation in the low-frequency scenario, but a deviation from pure thermal radiation in the high-frequency scenario due to energy conservation. It is also found that noncommutativity enhances the correlations between successively emitted particles.
Article
Astronomy & Astrophysics
Shahar Hod
Summary: The travel times of light signals between two antipodal points on a compact star's surface are calculated for two different trajectories. It is shown that, for highly dense stars, the longer trajectory along the surface may have a shorter travel time as measured by asymptotic observers. A critical value of the dimensionless density-area parameter is determined for constant density stars to distinguish cases where crossing through the star's center or following a semi-circular trajectory on the surface has a shorter travel time as measured by asymptotic observers.