Results 31 to 40 of about 295,686 (314)
Information Theory for Fields [PDF]
Annalen der Physik, 2019 AbstractA physical field has an infinite number of degrees of freedom since it has a field value at each location of a continuous space. Therefore, it is impossible to know a field from finite measurements alone and prior information on the field is essential for field inference.
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Manifestly SL(2, R) Duality-Symmetric Forms in ModMax Theory
Journal of High Energy Physics, 2022 In this paper, we will investigate a manifestly SL(2, R)-invariant structure for the energy-momentum tensor of ModMax theory as a nonlinear modification of Maxwell electrodynamics which includes conformal invariance as well. In the context of this theory,
H. Babaei-Aghbolagh +3 more
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Regularization in quantum field theories
Vojnotehnički Glasnik, 2022 Introduction/purpose: The principal techniques of regularization schemes and their validity for gauge field theories are discussed. Methods: Schemes of dimensional regularization, Pauli–Villars and lattice regularization are discussed.
Nicola Fabiano
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Smooth 1-Dimensional Algebraic Quantum Field Theories [PDF]
, 2022 This paper proposes a refinement of the usual concept of algebraic quantum field theories (AQFTs) to theories that are smooth in the sense that they assign to every smooth family of spacetimes a smooth family of observable algebras.
Benini, Marco +5 more
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Minimal supergeometric quantum field theories
Physics Letters B, 2023 We formulate minimal SuperGeometric Quantum Field Theories (SG-QFTs) that allow for scalar-fermion field transformations in a manifestly reparameterisation covariant manner.
Viola Gattus, Apostolos Pilaftsis
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Localization of Gauge Theories on the Three-Sphere [PDF]
, 2012 We describe the application of localization techniques to the path integral for supersymmetric gauge theories in three dimensions. The localization procedure reduces the computation of the expectation value of BPS observables to a calculation in a matrix
Yaakov, Itamar, Itamar Yaakov
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Mean field approximation for effective theories of lattice QCD [PDF]
, 2022 For the exploration of the phase diagram of QCD, effective Polyakov loop theories derived from lattice QCD provide a valuable tool in the heavy quark mass regime.
Philipsen, Owe +2 more
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The Theory of Quantized Fields. III [PDF]
Physical Review, 1951 This paper treats the effect of a time-independent external electromagnetic field upon a Dirac field by constructing the transformation function in a representation adapted to the external field. In addition to the alteration of the Green's function, the structure of the transformation function differs from that of the zero field situation by a factor ...
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Quantum quench and thermalization to GGE in arbitrary dimensions and the odd-even effect
Journal of High Energy Physics, 2020 In many quantum quench experiments involving cold atom systems the post-quench phase can be described by a quantum field theory of free scalars or fermions, typically in a box or in an external potential.
Parijat Banerjee +3 more
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Field Theories for type-II fractons
SciPost Physics, 2022 We derive an effective field theory for a type-II fracton starting from the Haah code on the lattice. The effective topological theory is not given exclusively in terms of an action; it must be supplemented with a condition that selects physical ...
Weslei B. Fontana, Pedro R. S. Gomes, Claudio Chamon
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