Results 71 to 80 of about 36,776 (204)

Polaritonic Spectra of Optical Mie Voids

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
Optical Mie voids have been shown to provide a versatile platform for polaritonic physics. Analytical and numerical analysis reveal how void resonances couple to excitonic media, enabling weak‐ and strong‐coupling regimes, polariton gaps, Q‐factor enhancement, and spatial mode localization.
Evgeny Ryabkov   +3 more
wiley   +1 more source

Nonperturbative Zou-Wang-Mandel effect

open access: yesPhysical Review A
The Zou-Wang-Mandel (ZWM) effect is a remarkable consequence of photon indistinguishability and continuous-variable entanglement in which an optical phase shift is imprinted on photonic modes associated with optical paths that that do not pass through the phase shift source.
T. J. Volkoff, Diego A. R. Dalvit
openaire   +2 more sources

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

open access: yesNanophotonics, 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

The Källén-Lehmann representation in de Sitter spacetime

open access: yesJournal of High Energy Physics, 2023
We study two-point functions of symmetric traceless local operators in the bulk of de Sitter spacetime. We derive the Källén-Lehmann spectral decomposition for any spin and show that unitarity implies its spectral densities are nonnegative.
Manuel Loparco   +3 more
doaj   +1 more source

NS Branes in Type I Theory

open access: yes, 1998
We consider novel nonperturbative effects of type I theories compactified on singular ALE spaces obtained by adding NS branes. Such effects include a description of small $E_8$ instantons at singularities.Comment: 6 pages, Harvmac.tex, updated ...
Blum, Julie D.
core   +1 more source

Uracil–Peptide–Pyrene Conjugates as Cu2+‐Sensitive Probes Targeting DNA, RNA, and Biorelevant Model Membranes

open access: yesChemBioChem, 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

Multi‐Scale Structural Insights Into Amphiphilic Model PEG–PCL Co‐Networks From LS and SANS

open access: yesMacromolecular Chemistry and Physics, Volume 227, Issue 7, 14 April 2026.
We present a multiscale structural study of amphiphilic PEG–PCL co‐networks combining light scattering in THF and small‐angle neutron scattering in D2O. This dual‐solvent approach reveals how solvent quality, polymer volume fraction, and PEG/PCL interactions govern static and dynamic correlation lengths, network homogeneity, and nanoscale domain ...
Sebastian Seitel   +6 more
wiley   +1 more source

Phase-locking in dynamical systems and quantum mechanics

open access: yesJournal of High Energy Physics
In this study, we discuss the Prüfer transform that connects the dynamical system on the torus and the Hill equation, which is interpreted as either the equation of motion for the parametric oscillator or the Schrödinger equation with periodic potential.
Artem Alexandrov   +2 more
doaj   +1 more source

Tensor-scalar gravity and binary-pulsar experiments [PDF]

open access: yes, 1996
Some recently discovered nonperturbative strong-field effects in tensor-scalar theories of gravitation are interpreted as a scalar analog of ferromagnetism: "spontaneous scalarization".
A.S. Goncharov   +51 more
core   +3 more sources

NONPERTURBATIVE EFFECTIVE ACTIONS OF (N=2)-SUPERSYMMETRIC GAUGE THEORIES [PDF]

open access: yesInternational Journal of Modern Physics A, 1996
We elaborate on our previous work on (N=2)-supersymmetric Yang-Mills theory. In particular, we show how to explicitly determine the low energy quantum effective action for G=SU(3) from the underlying hyperelliptic Riemann surface, and calculate the leading instanton corrections.
Klemm, A., Lerche, W., Theisen, S.
openaire   +4 more sources

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