Article
Physics, Particles & Fields
Danhua Song, Kai Lou, Ke Wu, Jie Yang
Summary: The YM theory has been generalized to 2YM and 3YM theories, and similarly, the BFYM theory has been generalized to 2BFYM and 3BFYM theories. It is shown that these higher BFYM theories can provide formulations for the corresponding higher form YM theories. Additionally, the gauge symmetries of these higher BFYM theories are also studied.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Review
Physics, Multidisciplinary
Neelima Agarwal, Lorenzo Magnea, Chiara Signorile-Signorile, Anurag Tripathi
Summary: This review provides a pedagogical overview of the significance of infrared divergences in gauge theory, including historical results, low-order applications, extension tools, and recent developments in high-order multi-particle scattering amplitudes and collider differential distribution calculations.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2023)
Article
Physics, Particles & Fields
Jun Yumoto, Tatsuhiro Misumi
Summary: We study lattice fermions using spectral graph theory (SGT). We find that a fermion on a lattice can be understood as a spectral graph. SGT helps in determining the number of fermion species on lattices with arbitrary topologies by investigating the zero eigenvalues of lattice Dirac operators. We apply the procedure of SGT to various lattice fermion formulations and reproduce the known results on the number of species.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Giuseppe Clemente, Arianna Crippa, Karl Jansen
Summary: This study proposes to use noisy-intermediate-scale-quantum-era quantum devices to compute short distance quantities in (2 + 1)-dimensional QED, and combine them with large volume Monte Carlo simulations and perturbation theory. By performing quantum computations, the mass gap in the small and intermediate regime can be reliably resolved and matched with corresponding results from Monte Carlo simulations.
Article
Astronomy & Astrophysics
Yannick Meurice
Summary: The article introduces the lattice compact Abelian Higgs model and quantum simulation using a ladder-shaped optical lattice in 1 + 1 dimensions. By building local Hilbert spaces with Rydberg atoms, the concept of ladder-shaped configurable arrays is proposed. Concrete proposals involving two and three atoms for constructing spin-1 spaces and analytical tools for design and building are discussed.
Article
Physics, Particles & Fields
Yuhma Asano, Jun Nishimura
Summary: This article investigates the dynamics of zero modes in gauge theory and reveals the instability between trivial vacuum and nontrivial vacuum in 4D SU(2) and SU(3) theories through Monte Carlo calculations of Wilson loops and Polyakov lines.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Multidisciplinary
Sebastian Franco, Diego Rodriguez-Gomez
Summary: This article discusses quiver gauge theories with SU(N) gauge groups, which have matter with fractonic properties and a Z(N) 1-form global symmetry. The order parameter is the expectation value of Wilson loops.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Kevissen Sellapillay, Pablo Arrighi, Giuseppe Di Molfetta
Summary: The article introduces a quantum cellular automaton that coincides with 1 + 1QED and demonstrates its accuracy through the limits of the evolution equations.
SCIENTIFIC REPORTS
(2022)
Article
Astronomy & Astrophysics
Nolan Miller, Logan Carpenter, Evan Berkowitz, Chia Cheng Chang, Ben Horz, Dean Howarth, Henry Monge-Camacho, Enrico Rinaldi, David A. Brantley, Christopher Korber, Chris Bouchard, M. A. Clark, Arjun Singh Gambhir, Christopher J. Monahan, Amy Nicholson, Pavlos Vranas, Andre Walker-Loud
Summary: The study involves subpercent scale determination using the omega baryon mass and gradient-flow methods. Results show that the dominant uncertainty is stochastic uncertainty, with a clear path towards improved precision in w(0) through the Budapest-Marseille-Wuppertal Collaboration.
Article
Astronomy & Astrophysics
Adam Virgili, Waseem Kamleh, Derek B. Leinweber
Summary: The Landau-gauge quark propagator is calculated and analyzed using overlap valence fermions on 2+1-flavour dynamical clover fermion gauge fields from the PACS-CS collaboration. The obtained mass and renormalization functions are examined and compared with results from O(a)-improved Wilson fermions on 2-flavour dynamical gauge fields.
Article
Astronomy & Astrophysics
Bipasha Chakraborty, Masazumi Honda, Taku Izubuchi, Yuta Kikuchi, Akio Tomiya
Summary: In this study, we designed a protocol for digital quantum computation of a gauge theory with a topological term in Minkowski spacetime. We focused on the 1+1 dimensional quantum electrodynamics with the Schwinger model and tested our protocol on an IBM simulator. By constructing the true vacuum state using adiabatic state preparation, we were able to compute the expectation value of the fermion mass operator and compare our results with the known exact result in the massless case. Although there were deviations in the massive case, our results imply that digital quantum simulation is a promising tool to explore nonperturbative aspects of gauge theories with real time and topological terms.
Article
Physics, Particles & Fields
Fabian Mueller, Akaki Rusetsky
Summary: Through non-relativistic effective field theory, a three-particle analog of the Lellouch-Luscher formula at the leading order has been derived. This formula establishes a connection between three-particle decay amplitudes in a finite volume and their infinite-volume counterparts, making it applicable for lattice studies on three-particle decays. The potential generalization of this approach to higher orders has also been briefly discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Fabian Mueller, Jin-Yi Pang, Akaki Rusetsky, Jia-Jun Wu
Summary: In this paper, a three-particle quantization condition on the lattice is formulated in a manifestly relativistic-invariant form using a generalization of the non-relativistic effective field theory (NREFT) approach. The inclusion of higher partial waves is explicitly addressed, and the quantization condition is partially diagonalized into irreducible representations of the octahedral group in both the center-of-mass frame and moving frames. By generating synthetic data in a toy model, the relativistic invariance of the three-body bound state spectrum is explicitly demonstrated.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
R. R. Ferguson, L. Dellantonio, A. Al Balushi, K. Jansen, W. Dur, C. A. Muschik
Summary: This approach utilizes measurement-based quantum computation principles, involving entangled resource states and local measurements, and presents two measurement-based VQE schemes, introducing a new method for constructing variational families and translating circuit-based schemes. Both schemes offer specific advantages in terms of required resources and coherence times.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
R. Ott, T. Zache, F. Jendrzejewski, J. Berges
Summary: The study introduces a scalable analog quantum simulator for quantum electrodynamics in two dimensions, using ultracold atomic mixtures in an optical lattice. By engineering spatial plaquette terms for magnetic fields, a major obstacle towards realizing realistic gauge theories in higher dimensions is solved. The phenomenon of confinement of electric charges is discussed in the context of the pure gauge theory of compact QED within this quantum simulator.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Nuclear
M. Giordano, K. Kapas, S. D. Katz, D. Nogradi, A. Pasztor
Summary: This study provides the first direct determination of the leading singularity of pressure in the complex chemical potential mu(B) plane in lattice QCD, without relying on a finite-order truncation of the Taylor expansion. By redefining the fermion determinant, the analyticity issues in the complex mu(B) plane of QCD with rooted staggered fermions are solved. The analysis shows that the radius of convergence near the crossover temperature at zero chemical potential is approximately mu(B)/T, which is independent of temperature.
Article
Physics, Nuclear
Kai Zhou, Gergely Endrodi, Long-Gang Pang, Horst Stoecker
Summary: The study demonstrates the application of modern deep learning techniques in two-dimensional lattice complex scalar field theory, showing that deep neural networks can semi-supervisedly identify phase transitions and discover hidden correlations, efficiently learn physical observables, and generate new configurations using GANs.
Article
Physics, Nuclear
Jana N. Guenther, Szabolcs Borsanyi, Zoltan Fodor, Ruben Kara, Sandor D. Katz, Paolo Parotto, Attila Pasztor, Claudia Ratti, Kalman K. Szabo
Summary: An efficient method to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. The phase diagram features a crossover line starting from the transition temperature already determined at zero chemical potential. In this work, the focus is on the Taylor expansion of this line up to mu(4) contributions, and the continuum extrapolation of the crossover temperature based on different observables at several lattice spacings is presented.
Article
Physics, Multidisciplinary
Volodymyr Vovchenko, Bastian B. Brandt, Francesca Cuteri, Gergely Endrodi, Fazlollah Hajkarim, Juergen Schaffner-Bielich
Summary: By investigating the potential formation of a Bose-Einstein condensed phase of pions in the early Universe, it is found that the cosmic trajectory can pass through the pion condensed phase when the combined electron and muon asymmetry is sufficiently large. Future studies will be able to confirm or rule out the condensation of pions, as well as reveal the impact of the pion condensed phase on the spectrum of primordial gravitational waves and the mass distribution of primordial black holes.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
S. Borsanyi, Z. Fodor, J. N. Guenther, R. Kara, S. D. Katz, P. Parotto, A. Pasztor, C. Ratti, K. K. Szabo
Summary: This Letter introduces a new scheme for extrapolating the equation of state of QCD to finite chemical potential with improved convergence properties, allowing extension to high baryonic chemical potentials. The continuum extrapolated lattice results for the new expansion coefficients are presented, showing thermodynamic observables up to mu(B)/T <= 3.5. This novel expansion overcomes the limitations of traditional Taylor expansion methods, providing a solution to the poor signal-to-noise ratio in determining Taylor coefficients from lattice calculations.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
G. Endrodi, T. G. Kovacs, G. Marko
Summary: This study investigates spontaneously broken quantum field theories with a continuous global symmetry group using the constraint effective potential approach. It finds that the path integral is dominated by inhomogeneous field configurations related to the flatness of the effective potential in the broken phase. The study introduces the concept of differential surface tension to characterize inhomogeneities and explores possible implications for the chiral limit of QCD.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Particles & Fields
G. Endrodi, G. Marko
Summary: We investigate the response of a hot gas of quarks to external electric fields using leading-order perturbation theory. We discuss the equilibrium maintenance in the presence of the electric field and calculate the electric susceptibility, providing its high-temperature expansion for arbitrary quark mass. Furthermore, we point out the mismatch between the direct determination of the susceptibility at zero field and the weak-field expansion of the effective action at nonzero electric fields obtained using Schwinger's exact propagator, and discuss the generalization of our results to full QCD in electric fields.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
Szabolcs Borsanyi, Zoltan Fodor, Matteo Giordano, Jana N. Guenther, Sandor D. Katz, Attila Pasztor, Chik Him Wong
Summary: In order to understand the limitations of various approximation schemes, researchers compared them to direct results at finite baryon density, using reweighting techniques without an overlap problem. They calculated the equation of state of the quark gluon plasma and covered a wide range of baryochemical potential.
Article
Astronomy & Astrophysics
Matteo Giordano, Kornel Kapas, Sandor D. Katz, Attila Pasztor, Zoltan Tulipant
Summary: We investigate the 2+1-dimensional XY model at nonzero chemical potential on deformed integration manifolds, and present numerical evidence showing exponential reduction of the sign problem with respect to mu 2 and spatial volume. We also introduce a new approach to optimization based on reweighting to reduce computational cost.
Article
Materials Science, Multidisciplinary
Marcel Rodekamp, Evan Berkowitz, Christoph Gaentgen, Stefan Krieg, Thomas Luu, Johann Ostmeyer
Summary: This study successfully addresses the sign problem in Monte Carlo simulations away from half filling by utilizing a specialized neural network architecture. By deforming the integration contour and implementing this transformation in the neural network, the adverse effects of the sign problem are significantly reduced, allowing for simulations of large-scale systems.
Article
Astronomy & Astrophysics
Szabolcs Borsanyi, Jana N. Guenther, Ruben Kara, Zoltan Fodor, Paolo Parotto, Attila Pasztor, Claudia Ratti, Kalman Szabo
Summary: This study calculates a resummed equation of state using lattice QCD simulations with imaginary chemical potentials, and investigates the strangeness neutral state and the strangeness-to-baryon ratio.
Article
Astronomy & Astrophysics
Szabolcs Borsanyi, Zoltan Fodor, Matteo Giordano, Sandor Katz, Daniel Nogradi, Attila Pasztor, Chik Him Wong
Summary: In this study, we simulate the QCD chiral transition using the sign-reweighting method on phenomenologically relevant lattices. This method overcomes the limitations of traditional approaches and provides a reliable way to study hot and dense matter.
Article
Astronomy & Astrophysics
Rene Bellwied, Claudia Ratti, Szabolcs Borsanyi, Paolo Parotto, Zoltan Fodor, Jana N. Guenther, Sandor D. Katz, Attila Pasztor, David Pesznyak, Kalman K. Szabo
Summary: Researchers used first principle lattice simulations to calculate corrections to the ideal HRG model and evaluated the fugacity expansion coefficients. By conducting a two-dimensional scan on the imaginary baryon number chemical potential and strangeness chemical potential plane, they successfully achieved their goal and reproduced the trend seen in experimental data.
Article
Astronomy & Astrophysics
Attila Pasztor, Zsolt Szep, Gergely Marko
Summary: A novel Bayesian method is proposed for analytically continuing observables to real baryochemical potential mu(B) in finite density QCD. By jointly analyzing Taylor coefficients and data at imaginary chemical potential mu(I)(B), an apparent convergence of rational functions [p/p] and [p/p + 1] sequences is observed with increasing p. The extrapolation up to mu(B) approximate to 600 MeV is presented.
