Results 21 to 30 of about 342,777 (290)
String Propagator: a Loop Space Representation [PDF]
, 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
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Path integrals: From quantum mechanics to photonics
APL 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
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Pricing weather derivatives under a tri-variate stochastic model
Scientific 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
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Path integral formulation of Hodge duality on the brane [PDF]
, 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
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Numerical simulations of a spin dynamics model based on a path integral approach
Physical 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
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(1,0) gauge theories on the six-sphere
SciPost Physics, 2019 We construct gauge theories with a vector-multiplet and hypermultiplets of $(1,0)$ supersymmetry on the six-sphere. The gauge coupling on the sphere depends on the polar angle.
Usman Naseer
doaj +1 more source
Path integration in relativistic quantum mechanics [PDF]
, 1992 The simple physics of a free particle reveals important features of the path-integral formulation of relativistic quantum theories. The exact quantum-mechanical propagator is calculated here for a particle described by the simple relativistic action ...
Redmount, Ian H., Suen, Wai-Mo
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The Principle of Covariance and the Hamiltonian Formulation of General Relativity
Entropy, 2021 The implications of the general covariance principle for the establishment of a Hamiltonian variational formulation of classical General Relativity are addressed.
Massimo Tessarotto, Claudio Cremaschini
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Path integral representation of the evolution operator for the Dirac equation [PDF]
, 2006 A path integral representation of the evolution operator for the four-dimensional Dirac equation is proposed. A quadratic form of the canonical momenta regularizes the original representation of the path integral in the electron phase space.
Lukyanenko, Alexander S. +1 more
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A path integral formulation for particle detectors: the Unruh-DeWitt model as a line defect
Journal of High Energy Physics, 2021 Particle detectors are an ubiquitous tool for probing quantum fields in the context of relativistic quantum information (RQI). We formulate the Unruh-DeWitt (UDW) particle detector model in terms of the path integral formalism. The formulation is able to
Ivan M. Burbano +2 more
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