Results 51 to 60 of about 8,246 (157)

The Origin of Chiral Anomaly and the Noncommutative Geometry [PDF]

, 1999
We describe the scalar and spinor fields on noncommutative sphere starting from canonical realizations of the enveloping algebra ${\cal A}={\cal U}{u(2))}$.
Connes A., Dubois-Violette M., Hoppe J., Jayewardena C., P. Prešnajder   +4 more
core   +2 more sources

Renormalisability of the matter determinants in noncommutative gauge theory in the enveloping-algebra formalism

Physics Letters B, 2008
We consider noncommutative gauge theory defined by means of Seiberg-Witten maps for an arbitrary semisimple gauge group. We compute the one-loop UV divergent matter contributions to the gauge field effective action to all orders in the noncommutative parameters $ $.
Martín, C.P., Tamarit, C.
openaire   +3 more sources

Intermediate‐Temperature Specific Heat of Solids and the Rationale Behind the Maier–Kelley Empirical Formula

physica status solidi (b), Volume 263, Issue 2, February 2026.
We develop a basic‐principles model from an analytically tractable semi‐harmonic Hamiltonian and compare our predictions with experimental data for Cu, Al, Pb, Si, and Ge. The results are quite satisfactory, considering that there are no fitting parameters in our theory.
Valmir Ribeiro, Fernando Parisio
wiley   +1 more source

Models in Decision‐Making Under Risk and Uncertainty

Journal of Economic Surveys, Volume 40, Issue 1, Page 304-320, February 2026.
ABSTRACT This paper systematically compares dominant frameworks for modeling decision‐making under risk and uncertainty, evaluating their theoretical trade‐offs and practical relevance for economic research. We establish key criteria for model selection—including predictive accuracy, descriptive realism, computational tractability, and ecological ...
Martin Höppner
wiley   +1 more source

On a direct approach to quasideterminant solutions of a noncommutative KP equation

, 2007
A noncommutative version of the KP equation and two families of its solutions expressed as quasideterminants are discussed. The origin of these solutions is explained by means of Darboux and binary Darboux transformations.
C R Gilson, Dimakis A, Dimakis A, Etingof P, Gilson C R Nimmo J J C, Gilson C R Nimmo J J C Ohta Y, Goncharenko V M, Hamanaka M, Hamanaka M, Hamanaka M Toda K, Hirota R, J J C Nimmo, Kupershmidt B A, Macdonald I D, Matveev V B, Matveev V B Karman A, Nimmo J J C, Oevel W Schief W, Paniak L D, Sakakibara M, Toda K   +20 more
core   +3 more sources

Non-Commutative Gauge Theories and the Cosmological Constant [PDF]

, 2001
We discuss the issue of the cosmological constant in non-commutative non-supersymmetric gauge theories. In particular, in orbifold field theories non-commutativity acts as a UV cut-off. We suggest that in these theories quantum corrections give rise to a
A. Armoni, A. Armoni, A. Bilal, A. Frizzo, A. Frizzo, Adi Armoni, C. Chu, C. Chu, C. Chu, C. Chu, F. R. Ruiz, I. R. Klebanov, J. Gomis, K. Landsteiner, L. Alvarez-Gaume, L. Bonora, M. Bershadsky, M. Bershadsky, N. Nekrasov, N. Seiberg, O. Andreev, P. Di Vecchia, P. Di Vecchia, R. Blumenhagen, R. Marotta, Rodolfo Russo, S. Kachru, S. M. Carroll, S. Minwalla, S. Weinberg, T. Filk, T. J. Hollowood, Z. Bern, Z. Bern, Z. Bern, Z. Bern   +35 more
core   +3 more sources

On the topological ranks of Banach ∗$^*$‐algebras associated with groups of subexponential growth

Bulletin of the London Mathematical Society, Volume 58, Issue 2, February 2026.
Abstract Let G$G$ be a group of subexponential growth and C→qG$\mathcal C\overset{q}{\rightarrow }G$ a Fell bundle. We show that any Banach ∗$^*$‐algebra that sits between the associated ℓ1$\ell ^1$‐algebra ℓ1(G|C)$\ell ^1(G\,\vert \,\mathcal C)$ and its C∗$C^*$‐envelope has the same topological stable rank and real rank as ℓ1(G|C)$\ell ^1(G\,\vert ...
Felipe I. Flores
wiley   +1 more source

Asymptotics of Fredholm determinant solutions of the noncommutative Painlevé II equation

Analysis and Applications
In this paper, we study the asymptotic behavior of a family of pole-free solutions to the noncommutative Painlevé II equation. These particular solutions can be expressed in terms of the Fredholm determinant of the matrix version of the classical Airy operator, which are analogous to the Hastings–McLeod solution and the Ablowitz–Segur solution of the ...
Du, Jia-Hao, Xu, Shuai-Xia, Zhao, Yu-Qiu
openaire   +2 more sources

Multi‐Channel Convolutional Neural Quantum Embedding

Advanced Quantum Technologies, Volume 9, Issue 1, January 2026.
This study presents convolutional neural quantum embedding (CNQE), a framework for optimizing quantum data embeddings for multi‐channel data classification, grounded in quantum state discrimination and Fourier analysis of quantum circuits. CNQE is validated through proof‐of‐principle demonstrations on CIFAR‐10 and Tiny ImageNet, showing improved ...
Yujin Kim, Changjae Im, Taehyun Kim, Tak Hur, Daniel K. Park   +4 more
wiley   +1 more source

Nonperturbative evaluation of the partition function for the real scalar quartic QFT on the Moyal plane at weak coupling

, 2018
The remarkable properties of the real scalar quartic quantum field theory on the Moyal plane in combination with its similarity to the Kontsevich model make the model's partition function an interesting object to study.
de Jong, Jins, Wulkenhaar, Raimar
core   +1 more source