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The role of magnetic and electric perturbations to the quantum Lifshitz model in 2+1 dimensions are examined in this paper. The quantum Lifshitz model is an effective field theory for quantum multicritical systems, that include generalized…

强关联电子 · 物理学 2013-02-12 Benjamin Hsu , Eduardo Fradkin

What is a diffusion model actually doing when it turns noise into a photograph? We show that the deterministic DDIM reverse chain operates as a Partitioned Iterated Function System (PIFS) and that this framework serves as a unified design…

机器学习 · 计算机科学 2026-03-16 Ann Dooms

We study polynomial deformations of the fuzzy sphere, specifically given by the cubic or the Higgs algebra. We derive the Higgs algebra by quantizing the Poisson structure on a surface in $\mathbb{R}^3$. We find that several surfaces,…

高能物理 - 理论 · 物理学 2010-04-30 T. R. Govindarajan , Pramod Padmanabhan , T. Shreecharan

We investigate the geometry of a quantum universe with the topology of the four-torus. The study of non-contractible geodesic loops reveals that a typical quantum geometry consists of a small semi-classical toroidal bulk part, dressed with…

高能物理 - 理论 · 物理学 2021-05-05 J. Ambjorn , Z. Drogosz , A. Görlich , J. Jurkiewicz

One-dimensional quantum optical models usually rest on the intuition of large scale separation or frozen dynamics associated with the different spatial dimensions, for example when studying quasi one-dimensional atomic dynamics, potentially…

量子物理 · 物理学 2024-03-28 Jannik Ströhle , Richard Lopp

If gravity is asymptotically safe, operators will exhibit anomalous scaling at the ultraviolet fixed point in a way that makes the theory effectively two-dimensional. A number of independent lines of evidence, based on different approaches…

广义相对论与量子宇宙学 · 物理学 2019-04-10 S. Carlip

We define the dimension 2g-1 Faber-Hurwitz Chow/homology classes on the moduli space of curves, parametrizing curves expressible as branched covers of P^1 with given ramification over infinity and sufficiently many fixed ramification points…

代数几何 · 数学 2007-05-23 Ian P. Goulden , David M. Jackson , Ravi Vakil

We first briefly review the Coset Space Dimensional Reduction (CSDR) programme and present the results of the best model so far, based on the $\mathcal{N} = 1$, $d = 10$, $E_8$ gauge theory reduced over the nearly-K\"ahler manifold…

高能物理 - 理论 · 物理学 2016-02-12 G. Manolakos , G. Zoupanos

There has been a significant surge of interest in Horava's model for 3+1 dimensional quantum gravity, this model being based on anisotropic scaling at a z=3 Lifshitz point. Horava's model, and its variants, show dramatically improved…

高能物理 - 理论 · 物理学 2015-05-13 Thomas P Sotiriou , Matt Visser , Silke Weinfurtner

We study the scalar quantum field theory on a generic noncommutative two-sphere as a special case of noncommutative curved space, which is described by the deformation quantization algebra obtained from symplectic reduction and parametrized…

高能物理 - 理论 · 物理学 2007-05-23 Chengang Zhou

Horava's "Lifschitz point gravity" has many desirable features, but in its original incarnation one is forced to accept a non-zero cosmological constant of the wrong sign to be compatible with observation. We develop an extension of…

高能物理 - 理论 · 物理学 2009-07-22 Thomas P. Sotiriou , Matt Visser , Silke Weinfurtner

We study two-dimensional turbulence driven by a scalar operator within the framework of the AdS/CFT correspondence, where the external driving source is used to sustain a quasi-steady turbulent state. We numerically construct dynamical and…

高能物理 - 理论 · 物理学 2025-10-15 Jia Du , Yu Tian , Hongbao Zhang

In this work, we describe the geometric and probabilistic properties of a noncommutative 2- torus in a magnetic field. We study the volume invariance, integrated scalar curvature and volume form by using the method of perturbation by inner…

数学物理 · 物理学 2018-05-22 Mahouton Norbert Hounkonnou , Fridolin Melong

We present a renormalizable 4-dimensional SU(N) gauge theory with a suitable multiplet of scalar fields, which dynamically develops extra dimensions in the form of a fuzzy sphere S^2. We explicitly find the tower of massive Kaluza-Klein…

高能物理 - 理论 · 物理学 2009-11-11 Paolo Aschieri , Theodoros Grammatikopoulos , Harold Steinacker , George Zoupanos

We study the Euler equations describing the motion of an incompressible fluid on the cubic torus with real initial data. We construct solutions on the Fourier side which display a sudden loss of regularity within finite time even for highly…

偏微分方程分析 · 数学 2024-03-18 Henrik Ueberschaer

We investigate the origin of the scaling corrections in ballistic deposition models in high dimensions using the method proposed by Alves \textit{et al}. [Phys Rev. E \textbf{90}, 052405 (20014)] in $d=2+1$ dimensions, where the intrinsic…

统计力学 · 物理学 2016-05-25 Sidiney G. Alves , Silvio C. Ferreira

The seemingly universal phenomenon of scale-dependent effective dimensions in non-perturbative theories of quantum gravity has been shown to be a potential source of quantum gravity phenomenology. The scale-dependent effective dimension…

广义相对论与量子宇宙学 · 物理学 2023-05-16 Marcus Reitz , Dániel Németh , Damodar Rajbhandari , Andrzej Görlich , Jakub Gizbert-Studnicki

In a noncommutative torus, effect of perturbation by inner derivation on the associated quantum stochastic process and geometric parameters like volume and scalar curvature have been studied. Cohomological calculations show that the above…

算子代数 · 数学 2007-05-23 Partha Sarathi Chakraborty , Debashish Goswami , Kalyan B. Sinha

We consider a four-dimensional theory in the z=3 Lifshitz context, with an exponential (Liouville) potential. We determine the exact renormalized potential of the theory and derive the non-perturbative relation between the renormalized and…

高能物理 - 理论 · 物理学 2013-05-29 J. Alexandre , K. Farakos , A. Tsapalis

We investigate a quasisymmetrically invariant counterpart of the topological Hausdorff dimension of a metric space. This invariant, called the topological conformal dimension, gives a lower bound on the topological Hausdorff dimension of…

度量几何 · 数学 2023-06-23 Claudio A. DiMarco