Zobrazeno 1 - 10
of 10 829
pro vyhledávání: '"Ousmane, A."'
This paper aims to study the functional renormalization group for quantum $(2+p)$-spin dynamics of a $N$-vector $\textbf{x}\in \mathbb{R}^N$. By fixing the gauge symmetry in the construction of the FRG, that breaks the $O(N)$-symmetry and deriving th
Externí odkaz:
http://arxiv.org/abs/2411.11089
Financial stock return correlations have been analyzed through the lens of random matrix theory to differentiate the underlying signal from spurious correlations. The continuous spectrum of the eigenvalue distribution derived from the stock return co
Externí odkaz:
http://arxiv.org/abs/2409.19711
The electrical characteristics of a carbon nanotube can be significantly modified by applying elastic strain. This study focuses on exploring this phenomenon in a single-walled carbon nanotube (SWNT) using tight-binding transport calculations. The re
Externí odkaz:
http://arxiv.org/abs/2409.04815
This paper examines the quantum $(2+p)$-spin dynamics of a $N$-vector $\textbf{x}\in \mathbb{R}^N$ through the lens of renormalization group (RG) theory. The RG is based on a coarse-graining over the eigenvalues of matrix-like disorder, viewed as an
Externí odkaz:
http://arxiv.org/abs/2408.02602
Autor:
Ly, Ousmane
In their recent work [Phys. Rev. B 109, 184409(2024)], Manchon and Pezo develop a linear (in magnetization) theory, in order to investigate high-order harmonic generation (HHG). Here, we show that such linear theory cannot describe HHG, which, by def
Externí odkaz:
http://arxiv.org/abs/2407.03364
Autor:
Koyama, Marii, Yun, Claire, Taherkhani, Amin, Benchasattabuse, Naphan, Sane, Bernard Ousmane, Hajdušek, Michal, Nagayama, Shota, Van Meter, Rodney
To scale quantum computers to useful levels, we must build networks of quantum computational nodes that can share entanglement for use in distributed forms of quantum algorithms. In one proposed architecture, node-to-node entanglement is created when
Externí odkaz:
http://arxiv.org/abs/2405.09860
Autor:
Lahoche, Vincent, Samary, Dine Ousmane
Publikováno v:
Nucl. Phys. B 1006 (2024) 116656
This paper is the last of the series investigating renormalization group aspects of stochastic random matrices, including a Wigner-like disorder. We consider the equilibrium dynamics formalism that can be merged with the Ward identities arising from
Externí odkaz:
http://arxiv.org/abs/2404.11915
Autor:
Lahoche, Vincent, Samary, Dine Ousmane
Publikováno v:
Physics Letters A 525 (2024) 129906
This paper aims to establish a connection between Pisarski's fixed point and a (2+3)-spin-glass model with sextic confinement potential. This is made possible by the unconventional power-counting induced by the effective kinetics provided by the diso
Externí odkaz:
http://arxiv.org/abs/2404.05436
We consider the problem of nonparametric density estimation under privacy constraints in an adversarial framework. To this end, we study minimax rates under local differential privacy over Sobolev spaces. We first obtain a lower bound which allows us
Externí odkaz:
http://arxiv.org/abs/2403.18357
Autor:
Lahoche, Vincent, Samary, Dine Ousmane
Publikováno v:
Nucl. Phys. B 1006 (2024) 116627
This paper, as a continuation of our previous investigation [arXiv:2403.07577] aims to study the glassy random matrices with quenched Wigner disorder. In this previous work, we have constructed a renormalization group based on the effective determini
Externí odkaz:
http://arxiv.org/abs/2403.12217