All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Filters

283 460 (0,436s)

Result

Wilsonian effective potentials and closed string field theory

We investigate Wilsonian effective field theory as a model for the construction to be universal features. We find that the effective field theory contains the same less efficiently as the distance...

Particles and field physics

  • 2024
  • Jimp
  • Link
Result

On-Shell Recursion Relations for Effective Field Theories

We derive the first ever on-shell recursion relations applicable to effective field theories. Based solely on factorization and the soft behavior of amplitudes scattering amplitudes in the nonlinear sigma model, Dirac-Born-...

BF - Elementární částice a fyzika vysokých energií

  • 2016
  • Jx
  • Link
Result

Light-cone reduction of Witten’s open string field theory

the reduction, gauge-fixed theory can be regarded as a kind of effective field theory, a novel light-cone string field theory is obtained from Witten’s open string fieldWe elucidate some...

Applied mathematics

  • 2019
  • Jimp
  • Link
Result

Classical algebraic structures in string theory effective actions

We study generic properties of string theory effective actions obtained by classically integrating out massive excitations from string field theories based on cyclic bosonic string using Witten’s open string fi...

Pure mathematics

  • 2020
  • Jimp
  • Link
Result

Effective Field Theories from Soft Limits of Scattering Amplitudes

We derive scalar effective field theories-Lagrangians, symmetries, and all-from to derive Lagrangians for each theory. We propose a natural classification of all scalar effective field theorie...

BF - Elementární částice a fyzika vysokých energií

  • 2015
  • Jx
  • Link
Result

Improved action for contact effective field theory

We present an improved action for renormalizable effective field theories (EFTs can be used to improve the theory's convergence, to simplify its applications, and to connect it to phenomenological models. We exempl...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2024
  • Jimp
  • Link
Result

Mapping between Witten and lightcone string field theories

We propose a transformation between the off-shell field variables of Witten’s open bosonic string field theory and the traditional lightcone string field theory and Kikkawa’s lightcone string field

Particles and field physics

  • 2021
  • Jimp
  • Link
Result

Calculations for nuclear matter and finite nuclei within and beyond energy-density-functional theories through interactions guided by effective field theory

We propose a novel idea to construct an effective interaction under energy-density-functional (EDF) theories which is adaptive to the enlargement of the model space. Guided by effective field theory princi...

Nuclear physics

  • 2022
  • Jimp
  • Link
Result

Renormalization and additional degrees of freedom within the chiral effective theory for spin-1 resonances

We study in detail various aspects of the renormalization of the spin-1 resonance propagator in the effective field theory framework....

BF - Elementární částice a fyzika vysokých energií

  • 2010
  • Jx
Result

Coulomb repulsion and correlation strength in LaFeAsO from density functional and dynamical mean-field theories

The role of electronic correlations in LaFeAsO is assessed using effective Hubbard Hamiltonian obtained from density functional calculations. It is shown that the on-site interaction parameters depend strongly on the choice of the single-par...

BM - Fyzika pevných látek a magnetismus

  • 2009
  • Jx
  • 1 - 10 out of 283 460