Results 101 to 110 of about 11,120,519 (277)
Universality of nonperturbative effects in c < 1 noncritical string theory [PDF]
, 2005 Nonperturbative effects in c < 1 noncritical string theory are studied using the two-matrix model. Such effects are known to have the form fixed by the string equations but the numerical coefficients have not been calculated so far.
N. Ishibashi, T. Kuroki, A. Yamaguchi
semanticscholar +1 more source
Nonperturbative effects in the proton sea
, 1999 We revisit the evaluation of the pionic mechanism of the $\bar{u}-\bar{d}$-asymmetry in the proton structure function. Our analysis is based on the unitarity relation between contributions of different mechanisms to the inclusive particle production and the total photoabsorption cross-section (i.e. the proton structure function).
Schäfer, W., Speth, J.
openaire +2 more sources
Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect
Advanced Physics Research, Volume 4, Issue 7, July 2025.This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò +4 more
wiley +1 more source
A Variational Approach to Bound States in Quantum Field Theory
, 1993 We consider here in a toy model an approach to bound state problem in a nonperturbative manner using equal time algebra for the interacting field operators.
A. Mishra +15 more
core +2 more sources
Borel and Stokes Nonperturbative Phenomena in Topological String Theory and c=1 Matrix Models [PDF]
, 2009 We address the nonperturbative structure of topological strings and c=1 matrix models, focusing on understanding the nature of instanton effects alongside with exploring their relation to the large-order behavior of the 1/N expansion.
Pasquetti, Sara, Schiappa, Ricardo
core +2 more sources
A TIME-DEPENDENT CLASSICAL SOLUTION OF c=1 STRING FIELD THEORY AND NONPERTURBATIVE EFFECTS [PDF]
, 1992 We describe a real-time classical solution of c=1 string field theory written in terms of the phase space density, u(p, q, t), of the equivalent fermion theory.
A. Dhar, G. Mandal, S. Wadia
semanticscholar +1 more source
A note on nonperturbative renormalization of effective field theory [PDF]
Journal of Physics A: Mathematical and Theoretical, 2009 6 pages, no figure, version to appear in J.Phys ...
openaire +3 more sources
physica status solidi (b), Volume 262, Issue 7, July 2025.It is demonstrated that the relaxation time approximation (RTA) for the quantum kinetic equation, a simple method for describing nonequilibrium steady states, has a critical flaw in the longitudinal nonlinear DC conductivity of insulators under weak electric fields.
Ibuki Terada +3 more
wiley +1 more source
Universality of nonperturbative QCD effects in radiative B-decays [PDF]
Physics Letters B, 2003 We demonstrate, by an explicit one-loop calculation, that at leading twist the nonperturbative effects in B -> gamma l nu, B -> gamma gamma and B -> gamma l+ l- radiative decays are contained in a common multiplicative factor ( _B(E_ ), where E_ is the energy of the photon). We argue that this result holds also at higher orders.
Christopher T. Sachrajda +2 more
openaire +5 more sources
Structure of hyperbolic polynomial automorphisms of C2${\mathbb {C}^2}$ with disconnected Julia sets
Proceedings of the London Mathematical Society, Volume 130, Issue 6, June 2025.Abstract For a hyperbolic polynomial automorphism of C2$\mathbb {C}^2$ with a disconnected Julia set, and under a mild dissipativity condition, we give a topological description of the components of the Julia set. Namely, there are finitely many “quasi‐solenoids” that govern the asymptotic behavior of the orbits of all nontrivial components.
Romain Dujardin, Mikhail Lyubich
wiley +1 more source