Real-time dynamics of the Schwinger model as an open quantum system with Neural Density Operators
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2024)211
Abstract: Ab-initio simulations of multiple heavy quarks propagating in a Quark-Gluon Plasma are computationally difficult to perform due to the large dimension of the space of density matrices. This work develops machine learning algorithms to overcome… read more here.
Keywords: system; neural density; density operators; model open ... See more keywords
Grassmann tensor renormalization group for the massive Schwinger model with a θ term using staggered fermions
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2025)036
Abstract: We use the Grassmann tensor renormalization group method to investigate the Nf = 2 Schwinger model with the staggered fermions in the presence of a 2π periodic θ term in a broad range of mass.… read more here.
Keywords: grassmann tensor; renormalization group; model; staggered fermions ... See more keywords
Observing quantum many-body scars in random quantum circuits
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.109.052602
Abstract: The Schwinger model describes quantum electrodynamics in 1+1-dimensions, it is a prototype for quantum chromodynamics, and its lattice version allows for a quantum link model description that can be simulated using modern quantum devices. In… read more here.
Keywords: quantum many; observing quantum; quantum circuits; model ... See more keywords
Prominent quantum many-body scars in a truncated Schwinger model
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.107.205112
Abstract: The high level of control and precision achievable in current synthetic quantum matter setups has enabled first attempts at quantum-simulating various intriguing phenomena in condensed matter physics, including those probing thermalization or its absence in… read more here.
Keywords: many body; quantum many; body scars; model ... See more keywords
Topological vacuum structure of the Schwinger model with matrix product states
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.054507
Abstract: We numerically study the single-flavor Schwinger model with a topological $\theta$-term, which is practically inaccessible by standard lattice Monte Carlo simulations due to the sign problem. By using numerical methods based on tensor networks, especially… read more here.
Keywords: theta; product states; matrix product; vacuum ... See more keywords
Physical properties of the massive Schwinger model from the nonperturbative functional renormalization group
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.016028
Abstract: We investigate the massive Schwinger model in d = 1 + 1 dimensions using bosonization and the non-perturbative functional renormalization group. In agreement with previous studies we find that the phase transition, driven by a… read more here.
Keywords: functional renormalization; renormalization; massive schwinger; renormalization group ... See more keywords
Real-time scattering in the lattice Schwinger model
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.111.014504
Abstract: Tensor network methods have demonstrated their suitability for the study of equilibrium properties of lattice gauge theories, even close to the continuum limit. We use them in an out-of-equilibrium scenario, much less explored so far,… read more here.
Keywords: time scattering; lattice schwinger; real time; schwinger model ... See more keywords
Critical behavior of the Schwinger model via gauge-invariant variational uniform matrix product states
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.111.094505
Abstract: We study the lattice Schwinger model by combining the variational uniform matrix product state (VUMPS) algorithm with a gauge-invariant matrix product ansatz that locally enforces the Gauss law constraint. Both the continuum and lattice versions… read more here.
Keywords: matrix product; variational uniform; uniform matrix; schwinger model ... See more keywords
Flux unwinding in the lattice Schwinger model
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.094501
Abstract: We study the dynamics of the massive Schwinger model on a lattice using exact diagonalization. When periodic boundary conditions are imposed, analytic arguments indicate that a non-zero electric flux in the initial state can "unwind"… read more here.
Keywords: lattice; flux; flux unwinding; schwinger model ... See more keywords
Automatic Fine-Tuning in the Two-Flavor Schwinger Model.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.125.181601
Abstract: I discuss the two-flavor Schwinger model both without and with fermion masses. I argue that the phenomenon of "conformal coalescence," in unparticle physics in which linear combinations of short-distance operators can disappear from the long-distance… read more here.
Keywords: flavor schwinger; fine tuning; two flavor; schwinger model ... See more keywords
Quantum simulation of the Schwinger model in deformed space: quantum gravitational effects
Sign Up to like & getrecommendations! Published in 2025 at "Canadian Journal of Physics"
DOI: 10.1139/cjp-2025-0065
Abstract: In this article, we study the real-time chiral phase transitions in the (1+1)-dimensional massive Schwinger model with a $\theta$-term in the presence of a minimal length. The minimal length, which induces quantum gravitational effects, is… read more here.
Keywords: minimal length; time; quantum gravitational; gravitational effects ... See more keywords