Results 71 to 80 of about 41,978 (137)

Entropy of chaotic eigenstates [PDF]

, 2010
These notes present a recent approach to study the high-frequency eigenstates of the Laplacian on compact Riemannian manifolds of negative sectional curvature. The main result is a lower bound on the Kolmogorov-Sinai entropy of the semiclassical measures
Nonnenmacher, Stéphane
core   +2 more sources

Matrix Model of QCD: Edge Localized Glue Balls and Phase Transitions

, 2017
In a matrix model of pure $SU(2)$ Yang-Mills theory, boundaries emerge in the space of $\textrm{Mat}_{3}(\mathbb{R})$ and the Hamiltonian requires boundary conditions.
Acharyya, Nirmalendu, Balachandran, A. P.   +1 more
core   +1 more source

State‐Dependence of Polar Amplification in an Idealized GCM

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Polar amplification (PA) is a robust feature of contemporary climate change, but its state‐dependence across different climate conditions is poorly understood despite potential relevance to paleoclimate records and future projections. Here we examine the state‐dependence of PA across a wide range of climate states in an idealized moist general
Andrew I. L. Williams, Timothy M. Merlis
wiley   +1 more source

Stabilizing Anion–Anion Aggregates via Dihydrogen Bonds in Non‐Classical Inorganic Molecules

Aggregate, Volume 7, Issue 1, January 2026.
Despite Coulomb's law, the anionic [o‐FESAN]− cluster forms stable anti‐electrostatic aggregates via short dihydrogen bonds. Experimental (nuclear magnetic resonance, dynamic light scattering, and X‐ray diffraction) and theoretical (density functional theory) studies reveal that C–H···H–B interactions overcome long‐range repulsion, enabling cluster ...
Adnana Zaulet, Miquel Nuez‐Martinez, Pipsa Hirva, Reijo Sillanpää, Francesc Teixidor, Clara Viñas   +5 more
wiley   +1 more source

Higher Spin de Sitter Hilbert Space [PDF]

, 2017
We propose a complete microscopic definition of the Hilbert space of minimal higher spin de Sitter quantum gravity and its Hartle-Hawking vacuum state.
Anninos, Dionysios, Denef, Frederik, Monten, Ruben, Sun, Zimo   +3 more
core   +2 more sources

Inflationary Perturbations in Anisotropic, Shear-Free Universes

, 2012
In this work, the linear and gauge-invariant theory of cosmological perturbations in a class of anisotropic and shear-free spacetimes is developed. After constructing an explicit set of complete eigenfunctions in terms of which perturbations can be ...
Carneiro, Saulo, Marugan, Guillermo A. Mena, Pereira, Thiago S.   +2 more
core   +1 more source

The Laplacian-energy like invariant is an energy like invariant

, 2010
Published
Gutman, Ivan, Zhou, Bo, Furtula, Boris
openaire   +1 more source

Comparison between the laplacian–energy–like invariant and the kirchhoff index

, 2016
© 2016, International Linear Algebra Society. All Rights Reserved. For a simple connected graph G of order n, having Laplacian eigenvalues μ1, μ2, …, μn−1, μn = 0, the Laplacian–energy–like invariant (LEL) and the Kirchhoff index (Kf) are defined as LEL(G) = Σn−1i=1 √μi and Kf(G) = nΣn−1i=1 1/μi, respectively.
Pirzada, Shariefuddin, Ganie H., Gutman I.   +2 more
openaire   +1 more source

Best constants in subelliptic fractional Sobolev and Gagliardo-Nirenberg inequalities and ground states on stratified Lie groups. [PDF]

Calc Var Partial Differ Equ
Ghosh S, Kumar V, Ruzhansky M.
europepmc   +1 more source

Matrix Quantum Mechanics and Entanglement Entropy: A Review. [PDF]

Entropy (Basel)
Fliss JR, Frenkel A.
europepmc   +1 more source