Results 11 to 20 of about 342,777 (290)

Pauli-Villars’ regularization of ghosts in path-integral string formulation

open access: yesJournal of High Energy Physics, 2023
I consider Pauli-Villars’ regulators for the ghosts in the path-integral string formulation and show how they preserve conformal invariance. I calculate the regulator contributions to the effective action and to the central charge and demonstrate the ...
Yuri Makeenko
doaj   +1 more source

Path integral implementation of relational quantum mechanics

open access: yesScientific Reports, 2021
Relational formulation of quantum mechanics is based on the idea that relational properties among quantum systems, instead of the independent properties of a quantum system, are the most fundamental elements to construct quantum mechanics.
Jianhao M. Yang
doaj   +1 more source

T T ¯ $$ T\overline{T} $$ + Λ2 from a 2d gravity path integral

open access: yesJournal of High Energy Physics, 2023
We develop a two-dimensional gravity path integral formulation of the T T ¯ $$ T\overline{T} $$ + Λ2 deformation of quantum field theory. This provides an exactly solvable generalization of the pure T T ¯ $$ T\overline{T} $$ deformation that is relevant ...
Gonzalo Torroba
doaj   +1 more source

Fully Symmetric Relativistic Quantum Mechanics and Its Physical Implications

open access: yesMathematics, 2021
A new formulation of relativistic quantum mechanics is presented and applied to a free, massive, and spin-zero elementary particle in the Minkowski spacetime. The reformulation requires that time and space, as well as the timelike and spacelike intervals,
Bao D. Tran, Zdzislaw E. Musielak
doaj   +1 more source

A new three-dimensional J-integral formulation for arbitrary load history and finite deformation

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, a new formulation of three-dimensional J-integral for the evaluation of elastic-plastic fracture problem is presented. It is known that the J-integral represents the energy release rate per unit crack extension.
Koichiro ARAI   +2 more
doaj   +1 more source

A new formulation of J-integral range ΔJ using three-dimensional equivalent domain integral for finite deformation elastic-plastic problem

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, a new formulation for computing ΔJ using the three-dimensional equivalent domain integral method for finite deformation elastic-plastic problem is presented.
Koichiro ARAI   +2 more
doaj   +1 more source

Cost of holographic path integrals

open access: yesSciPost Physics, 2023
We consider proposals for the cost of holographic path integrals. Gravitational path integrals within finite radial cutoff surfaces have a precise map to path integrals in $T\overline{T}$ deformed holographic CFTs. In Nielsen's geometric formulation cost
Ammanamanchi Ramesh Chandra, Jan de Boer, Mario Flory, Michal P. Heller, Sergio Hörtner, Andrew Rolph
doaj   +1 more source

On exact-WKB analysis, resurgent structure, and quantization conditions

open access: yesJournal of High Energy Physics, 2020
There are two well-known approaches to studying nonperturbative aspects of quantum mechanical systems: saddle point analysis of the partition functions in Euclidean path integral formulation and the exact-WKB analysis based on the wave functions in the ...
Naohisa Sueishi   +3 more
doaj   +1 more source

Koopman-von Neumann Formulation of Classical Yang-Mills Theories: I [PDF]

open access: yes, 2005
In this paper we present the Koopman-von Neumann (KvN) formulation of classical non-Abelian gauge field theories. In particular we shall explore the functional (or classical path integral) counterpart of the KvN method.
Abad   +41 more
core   +2 more sources

An exact mapping between loop-erased random walks and an interacting field theory with two fermions and one boson

open access: yesSciPost Physics, 2020
We give a simplified proof for the equivalence of loop-erased random walks to a lattice model containing two complex fermions, and one complex boson. This equivalence works on an arbitrary directed graph.
Assaf Shapira, Kay Jörg Wiese
doaj   +1 more source

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