Results 21 to 30 of about 348,524 (332)

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

String Propagator: a Loop Space Representation [PDF]

open access: yes, 1995
The string quantum kernel is normally written as a functional sum over the string coordinates and the world--sheet metrics. As an alternative to this quantum field--inspired approach, we study the closed bosonic string propagation amplitude in the ...
A. Aurilia   +17 more
core   +2 more sources

Path integral formulation with deformed antibracket

open access: yesPhysics Letters B, 2010
13 pages, LaTeX. v2: Added references. To appear in Phys.
Batalin, Igor A., Bering, Klaus
openaire   +2 more sources

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

Path integral formulation of Hodge duality on the brane [PDF]

open access: yes, 2001
In the warped compactification with a single Randall-Sundrum brane, a puzzling claim has been made that scalar fields can be bound to the brane but their Hodge dual higher-rank anti-symmetric tensors cannot.
C. Kim   +12 more
core   +2 more sources

Path integrals: From quantum mechanics to photonics

open access: yesAPL Photonics, 2021
The path integral formulation of quantum mechanics, i.e., the idea that the evolution of a quantum system is determined as a sum over all the possible trajectories that would take the system from the initial to its final state of its dynamical evolution,
Charles W. Robson   +3 more
doaj   +1 more source

Numerical simulations of a spin dynamics model based on a path integral approach

open access: yesPhysical Review Research, 2023
Inspired by path integral molecular dynamics, we build a spin model, in terms of spin coherent states, from which we can compute the quantum expectation values of a spin in a constant magnetic field, at finite temperature.
Thomas Nussle   +2 more
doaj   +1 more source

Pricing weather derivatives under a tri-variate stochastic model

open access: yesScientific African, 2023
Weather derivatives are used to protect farmers in sub-Saharan Africa (SSA) from yield loss caused by climate change. However, mispricing these contracts poses a significant risk due to the interconnected nature and combined impact of the principal ...
Patrick Chidzalo   +2 more
doaj   +1 more source

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