Results 61 to 70 of about 9,158,519 (175)
Nonperturbative effects in heavy quarkonia
, 1994 An effective hamiltonian for heavy quarkonia is derived from QCD by separating gluonic fields in background and quantum fields and neglecting anharmonic contributions. Mesonic states with nonperturbative gluonic components are constructed. These states are invariant under gauge changes of the background fields and form an orthogonal basis.
Nunes, C. A. A. +3 more
openaire +2 more sources
Nonperturbative effects from the resummation of perturbation theory [PDF]
Physical Review D, 2002 21 Pages, 1 Figure; To appear in Phys Rev ...
openaire +2 more sources
Nanophotonics, Volume 15, Issue 9, 13 May 2026.This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian +7 more
wiley +1 more source
Superradiance and Broadband Emission Driving Fast Electron Dephasing in Open Quantum Systems
Advanced Science, Volume 13, Issue 27, 13 May 2026.We uncover the physical origin of ultrafast electron dephasing in solid‐state high‐harmonic generation by simulating the Lindblad equation for the dissipative Hubbard model. Coexistence of Dicke superradiance and broadband emission is revealed, whose destructive interference shortens the effective scattering time and provides a unified picture of ...
Gimin Bae, Youngjae Kim, Jae Dong Lee
wiley +1 more source
Nonperturbative many-body physics in the open bosonic string [PDF]
, 1990 We use covariant string field theory to explore many-body string physics. A candidate nonperturbative vacuum is identified via a level-truncation scheme. The breaking of internal and Lorentz symmetries is investigated.
Samuel, S., Kostelecký, V.A.
core +1 more source
Deforming the Double‐Scaled SYK and Reaching the Stretched Horizon From Finite Cutoff Holography
Fortschritte der Physik, Volume 74, Issue 5, May 2026.ABSTRACT We study the properties of the double‐scaled SYK (DSSYK) model under chord Hamiltonian deformations based on finite cutoff holography for general dilaton gravity theories with Dirichlet boundaries. The formalism immediately incorporates a lower‐dimensional analog of TT¯(+Λ2)$\text{T}\overline{\text{T}}(+\Lambda _2)$ deformations, denoted T2 ...
Sergio E. Aguilar‐Gutierrez
wiley +1 more source
Derivative corrections to the Heisenberg-Euler effective action
Journal of High Energy Physics, 2021 We show that the leading derivative corrections to the Heisenberg-Euler effective action can be determined efficiently from the vacuum polarization tensor evaluated in a homogeneous constant background field.
Felix Karbstein
doaj +1 more source
ChemBioChem, Volume 27, Issue 8, April 2026.We introduce uracil–triazole–pyrene peptidomimetics whose tunable peptide linkers precisely control light emission, copper binding, and interactions with DNA and RNA. Fine structural adjustments unlock selective biomolecular recognition and striking metal‐ and membrane‐responsive fluorescence, paving the way for a new generation of multifunctional ...
Dijana Pavlović Saftić +2 more
wiley +1 more source
Nonperturbative effects in the proton sea
, 1999 8 pages, 5 eps-figures. Talk given at the 6th INT / JLAB Workshop on Exclusive and Semiexclusive Processes at High Momentum Transfer, Newport News, VA, 19-23 May ...
Schäfer, W., Speth, J.
openaire +2 more sources
Universality of nonperturbative QCD effects in radiative B decays
, 2003 We demonstrate, by an explicit one-loop calculation, that at leading twist the nonperturbative effects in B → γℓνℓ, B → γγ and B → γℓ+ℓ- radiative decays are contained in a common multiplicative factor (ΛB(Eγ), where Eγ is the energy of the photon).
Descotes-Genon, S. +2 more
core +2 more sources