Results 101 to 110 of about 582,899 (222)
Elliptic genus derivation of 4d holomorphic blocks
We study elliptic vortices on ℂ × T 2 by considering the 2d quiver gauge theory describing their moduli spaces. The elliptic genus of these moduli spaces is the elliptic version of vortex partition function of the 4d theory. We focus on two examples: the
Matteo Poggi
doaj +1 more source
Adsorption, Single‐Molecule Manipulation, and Self‐Assembly of Borazine on Ag(111)
Borazine molecules are imaged on a solid support for the first time in real space via low‐temperature scanning tunneling microscopy. The intact molecules form a porous and a dense‐packed phase. Individual borazine molecules are manipulated with voltage pulses.
Tobias Weiss+6 more
wiley +1 more source
Complex eigenvalue instantons and the Fredholm determinant expansion in the Gross-Witten-Wadia model
We study the leading nonperturbative corrections to the strong-coupling (ungapped) phase of the Gross-Witten-Wadia (GWW) integral over unitary matrices, to one-loop order.
Dan Stefan Eniceicu+2 more
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Limits of TMD evolution in SIDIS at moderate Q
We investigate semi-inclusive deep inelastic scattering measurements in the region of relatively small Q, where sensitivity to nonperturbative transverse momentum dependence can dominate the evolution.
Gamberg Leonard
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Large-order behavior and nonperturbative effects [PDF]
Abstract We consider the energy-dependence of the large-order behavior of forward scattering amplitudes in theories having explicit mass parameters and instanton solutions. We show that in weak coupling theories the exponential part of the Espinosa-Ringwald type cross section can be determined by taking the minimum element of the perturbative series,
openaire +2 more sources
Spatial Manipulation of Fluorescent Colloidal Nanodiamonds for Applications in Quantum Sensing
Fluorescent nanodiamonds (NDs) exhibit remarkable structural and optical properties, making them useful for diverse quantum applications ranging from single photon emission, nanophotonic devices to high‐resolution sensing. As a result, there is a strong focus on the selection, manipulation, and precise placement of NDs in specific locations, driving ...
Eklavy Vashist+2 more
wiley +1 more source
Electroweak vacuum stability in the Higgs-Dilaton theory
We study the stability of the Electroweak (EW) vacuum in a scale-invariant extension of the Standard Model and General Relativity, known as a Higgs-Dilaton theory.
A. Shkerin
doaj +1 more source
Finding the Dynamics of an Integrable Quantum Many‐Body System via Machine Learning
Machine‐learning methods are used to find nonperturbative dynamics of the Gaudin magnet (central‐spin model). The Gaudin magnet has important applications in qubit dynamics/decoherence and in nonequilibrium superconductivity. Integrable models like the Gaudin magnet have many conserved quantities and their dynamics may therefore admit an efficient ...
Victor Wei+3 more
wiley +1 more source
All-multiplicity amplitudes in impulsive PP-waves from the worldline formalism
We use the worldline formalism to derive Bern-Kosower type Master Formulae for the tree-level scattering of a charged particle and an arbitrary number of photons on impulsive PP-waves, where the coupling of the PP-wave to matter is treated fully non ...
Patrick Copinger+3 more
doaj +1 more source
Reducible contributions to quantum electrodynamics in external fields
We consider one-particle reducible (1PR) contributions to QED and scalar QED processes in external fields, at one-loop and two-loop order. We investigate three cases in detail: constant crossed fields, constant magnetic fields, and plane waves.
Naser Ahmadiniaz+2 more
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