Results 31 to 40 of about 2,978,757 (308)

The universal path integral [PDF]

open access: yesQuantum Information Processing, 2015
Path integrals represent a powerful route to quantization: they calculate probabilities by summing over classical configurations of variables such as fields, assigning each configuration a phase equal to the action of that configuration. This paper defines a universal path integral, which sums over all computable structures. This path integral contains
Seth Lloyd, Olaf Dreyer
openaire   +5 more sources

Path integrals and parastatistics [PDF]

open access: yesNuclear Physics B, 1996
14 pages, no figures, phyzzx ...
openaire   +2 more sources

Path-integral dynamics of water using curvilinear centroids [PDF]

open access: yesJournal of Chemical Physics, 2019
We develop a path-integral dynamics method for water that resembles centroid molecular dynamics (CMD), except that the centroids are averages of curvilinear, rather than cartesian, bead coordinates.
George Trenins   +2 more
semanticscholar   +1 more source

Path-integral evidence [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Here we present a Bayesian formalism for the goodness-of-fit that is the evidence for a fixed functional form over the evidence for all functions that are a general perturbation about this form. This is done under the assumption that the statistical properties of the data can be modelled by a multivariate Gaussian distribution.
Kitching, T. D., Taylor, A. N.
openaire   +2 more sources

Predicting Phosphorescence Rates of Light Organic Molecules Using Time-Dependent Density Functional Theory and the Path Integral Approach to Dynamics

open access: yesJournal of Chemical Theory and Computation, 2019
In this work, we present a general method for predicting phosphorescence rates and spectra for molecules using time-dependent density functional theory (TD-DFT) and a path integral approach for the dynamics that relies on the harmonic oscillator ...
Bernardo de Souza   +3 more
semanticscholar   +1 more source

Effective dynamics from coherent state path integral of full loop quantum gravity [PDF]

open access: yesPhysical Review D, 2019
A new routine is proposed to relate loop quantum cosmology (LQC) to loop quantum gravity (LQG) from the perspective of effective dynamics. We derive the big-bang singularity resolution and big bounce from the first principle of full canonical LQG.
Muxin Han, Hongguang Liu
semanticscholar   +1 more source

The functional integral formulation of the Schrieffer–Wolff transformation

open access: yesNew Journal of Physics, 2016
We revisit the Schrieffer–Wolff transformation and present a path integral version of this important canonical transformation. The equivalence between the low-energy sector of the Anderson model in the so-called local moment regime and the spin-isotropic
Farzaneh Zamani   +2 more
doaj   +1 more source

Chern-Simons Path Integrals in S2 × S1

open access: yesMathematics, 2015
Using torus gauge fixing, Hahn in 2008 wrote down an expression for a Chern-Simons path integral to compute the Wilson Loop observable, using the Chern-Simons action \(S_{CS}^\kappa\), \(\kappa\) is some parameter.
Adrian P. C. Lim
doaj   +1 more source

Spacetime Paths as a Whole

open access: yesQuantum Reports, 2020
The mathematical similarities between non-relativistic wavefunction propagation in quantum mechanics and image propagation in scalar diffraction theory are used to develop a novel understanding of time and paths through spacetime as a whole.
Sky Nelson-Isaacs
doaj   +1 more source

Path Integral Action for a Resonant Detector of Gravitational Waves in the Generalized Uncertainty Principle Framework

open access: yesUniverse, 2022
The Heisenberg uncertainty principle is modified by the introduction of an observer-independent minimal length. In this work, we have considered the resonant gravitational wave detector in the modified uncertainty principle framework, where we have used ...
Soham Sen   +2 more
doaj   +1 more source

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