Two-particle scattering from finite-volume quantization conditions using the plane wave basis
Journal of High Energy Physics, 2021 We propose an alternative approach to Lüscher’s formula for extracting two-body scattering phase shifts from finite volume spectra with no reliance on the partial wave expansion. We use an effective-field-theory-based Hamiltonian method in the plane wave
Lu Meng, E. Epelbaum
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Exotic symmetries, duality, and fractons in 2+1-dimensional quantum field theory
, 2020 We discuss nonstandard continuum quantum field theories in 2+1 dimensions. They exhibit exotic global symmetries, a subtle spectrum of charged excitations, and dualities similar to dualities of systems in 1+1 dimensions.
N. Seiberg, Shu-Heng Shao
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The chirally rotated Schrödinger functional: theoretical expectations and perturbative tests
Journal of High Energy Physics, 2016 The chirally rotated Schrödinger functional (χSF) with massless Wilson-type fermions provides an alternative lattice regularization of the Schrödinger functional (SF), with different lattice symmetries and a common continuum limit expected from ...
Mattia Dalla Brida +2 more
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A PDE Construction of the Euclidean $$\Phi ^4_3$$ Quantum Field Theory [PDF]
Communications in Mathematical Physics, 2018 We present a new construction of the Euclidean $$\Phi ^4$$ Φ 4 quantum field theory on $${\mathbb {R}}^3$$ R 3 based on PDE arguments. More precisely, we consider an approximation of the stochastic quantization equation on $${\mathbb {R}
Massimiliano Gubinelli, M. Hofmanová
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Parton distribution functions from Ioffe time pseudo-distributions
Journal of High Energy Physics, 2019 In this paper, we present a detailed study of the unpolarized nucleon parton distribution function (PDF) employing the approach of parton pseudo-distribution func- tions. We perform a systematic analysis using three lattice ensembles at two volumes, with
Bálint Joó +5 more
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The SU(3) spin model with chemical potential by series expansion techniques
Journal of High Energy Physics, 2020 The SU(3) spin model with chemical potential corresponds to a simplified version of QCD with static quarks in the strong coupling regime. It has been studied previously as a testing ground for new methods aiming to overcome the sign problem of lattice ...
Jangho Kim +3 more
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Quantum field theory for the chiral clock transition in one spatial dimension. [PDF]
Physical review B, 2018 We describe the quantum phase transition in the N -state chiral clock model in spatial dimension d = 1 . With couplings chosen to preserve time-reversal and spatial inversion symmetries, such a model is in the universality class of recent experimental ...
Seth Whitsitt, R. Samajdar, S. Sachdev
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Variations on the Maiani-Testa approach and the inverse problem
Journal of High Energy Physics, 2021 We discuss a method to construct hadronic scattering and decay amplitudes from Euclidean correlators, by combining the approach of a regulated inverse Laplace transform with the work of Maiani and Testa [1]. Revisiting the original result of ref. [1], we
M. Bruno, M. T. Hansen
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Compact gauge fields on Causal Dynamical Triangulations: a 2D case study
Journal of High Energy Physics, 2021 We discuss the discretization of Yang-Mills theories on Dynamical Triangulations in the compact formulation, with gauge fields living on the links of the dual graph associated with the triangulation, and the numerical investigation of the minimally ...
Alessandro Candido +3 more
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Finite-volume energy spectrum, fractionalized strings, and low-energy effective field theory for the quantum dimer model on the square lattice [PDF]
, 2015 We present detailed analytic calculations of finite-volume energy spectra, mean-field theory, as well as a systematic low-energy effective field theory for the square lattice quantum dimer model.
D. Banerjee +5 more
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