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We develop a fixed-point extension of quantitative equational logic and give semantics in one-bounded complete quantitative algebras. Unlike previous related work about fixed-points in metric spaces, we are working with the notion of…

Logic in Computer Science · Computer Science 2021-07-01 Radu Mardare , Prakash Panangaden , Gordon Plotkin

In this paper we prove a multiplicity result concerning the critical points of a class of functionals involving local and nonlocal nonlinearities. We apply our result to the nonlinear Schrodinger-Maxwell system and to the nonlinear elliptic…

Analysis of PDEs · Mathematics 2010-06-04 Antonio Azzollini , Pietro d'Avenia , Alessio Pomponio

We show, via explicit computation on a constrained bosonic model, that the presence of subsystem symmetries can lead to a quantum phase transition (QPT) where the critical point exhibits an emergent enhanced symmetry. Such a transition…

Strongly Correlated Electrons · Physics 2025-08-27 Anirudha Menon , Anwesha Chattopadhyay , K. Sengupta , Arnab Sen

The simplest gravity duals for quantum critical theories with z=2 `Lifshitz' scale invariance admit a marginally relevant deformation. Generic black holes in the bulk describe the field theory with a dynamically generated momentum scale…

High Energy Physics - Theory · Physics 2014-11-20 Miranda C. N. Cheng , Sean A. Hartnoll , Cynthia A. Keeler

In the paper, results on the existence of critical points in annular subsets of a cone are obtained with the additional goal of obtaining multiplicity results. Compared to other approaches in the literature based on the use of…

Analysis of PDEs · Mathematics 2025-12-19 Radu Precup , Andrei Stan

The theory of quantum jump trajectories provides a new framework for understanding dynamical phase transitions in open systems. A candidate for such transitions is the atom maser, which for certain parameters exhibits strong intermittency…

Quantum Physics · Physics 2024-06-19 Federico Girotti , Merlijn van Horssen , Raffaella Carbone , Madalin Guta

Quantum criticality is a central concept in condensed matter physics, but the direct observation of quantum critical fluctuations has remained elusive. Here we present an x-ray diffraction study of the charge density wave (CDW) in 2H-NbSe2…

Strongly Correlated Electrons · Physics 2012-08-07 Yejun Feng , Jiyang Wang , R. Jaramillo , Jasper van Wezel , S. Haravifard , G. Srajer , Y. Liu , Z. -A. Xu , P. B. Littlewood , T. F. Rosenbaum

We carry out a systematic study of the bounds that can be set on Planck-scale deformations of relativistic symmetries and CPT from precision measurements of particle and antiparticle lifetimes. Elaborating on our earlier work [1] we discuss…

High Energy Physics - Phenomenology · Physics 2020-09-08 Michele Arzano , Jerzy Kowalski-Glikman , Wojciech Wislicki

A relativistic theory of the Zeeman splitting of hyperfine levels in two-fermion systems is presented. The approach is based on the variational equation for bound states derived from quantum electrodynamics [1]. Relativistic corrections to…

High Energy Physics - Phenomenology · Physics 2008-05-27 Andrei G. Terekidi , Jurij W. Darewych , Marko Horbatsch

We provide some versions of the Zaremba-Hopf-Oleinik boundary point lemma for general elliptic and parabolic equations in divergence form under the sharp requirements on the coefficients of equations and on the boundaries of domains.

Analysis of PDEs · Mathematics 2018-09-18 Darya E. Apushkinskaya , Alexander I. Nazarov

We present a simple argument which determines the critical value of the anomaly coefficient in four dimensional conformal factor quantum gravity, at which a phase transition between a smooth and elongated phase should occur. The argument is…

High Energy Physics - Theory · Physics 2009-10-30 I. Antoniadis , P. O. Mazur , E. Mottola

In this paper, we consider the following Caffarelli-Kohn-Nirenberg (CKN for short) inequality \begin{eqnarray*} \bigg(\int_{{\mathbb R}^d}|x|^{-b(p+1)}|u|^{p+1}dx\bigg)^{\frac{2}{p+1}}\leq S_{a,b}\int_{{\mathbb R}^d}|x|^{-2a}|\nabla u|^2dx,…

Analysis of PDEs · Mathematics 2024-07-30 Juncheng Wei , Yunze Wu

Selection of descent direction at a point plays an important role in numerical optimization for minimizing a real valued function. In this article, a descent sequence is generated for the functions with bounded parameters to obtain a…

Optimization and Control · Mathematics 2019-07-24 Priyanka Roy , Geetanjali Panda

This work is devoted to study the asymptotic behavior of critical points $\{(u_\varepsilon,v_\varepsilon)\}_{\varepsilon>0}$ of the Ambrosio-Tortorelli functional. Under a uniform energy bound assumption, the usual $\Gamma$-convergence…

Analysis of PDEs · Mathematics 2022-11-30 Jean-François Babadjian , Vincent Millot , Rémy Rodiac

In this paper, we investigate critical points of the Laplacian's eigenvalues considered as functionals on the space of Riemmannian metrics or a conformal class of metrics on a compact manifold. We obtain necessary and sufficient conditions…

Metric Geometry · Mathematics 2009-11-13 Ahmad El Soufi , Said Ilias

We obtain a global extension of the classical weak Harnack inequality which extends and quantifies the Hopf-Oleinik boundary-point lemma, for uniformly elliptic equations in divergence form. Among the consequences is a boundary gradient…

Analysis of PDEs · Mathematics 2022-11-03 Fiorella Rendón , Boyan Sirakov , Mayra Soares

We consider a functional which models an elastic body with a cavity. We show that if a critical point has positive second variation then it is a strict local minimizer. We also provide a quantitative estimate.

Analysis of PDEs · Mathematics 2013-04-05 Giuseppe Maria Capriani , Vesa Julin , Giovanni Pisante

High sensitivity measurements in atomic spectroscopy were recently used in Amelino-Camelia et. al. to constraint the form of possible modifications of the energy-momentum dispersion relation resulting from Lorentz invariance violation…

High Energy Physics - Theory · Physics 2014-11-20 M. Arzano , J. Kowalski-Glikman , A. Walkus

The Schwarz lemma for holomorphic maps between Hermitian manifolds is improved. New curvature constraints on the source and target manifolds are introduced and shown to be weaker than the Ricci and real bisectional curvature, respectively.…

Differential Geometry · Mathematics 2023-09-12 Kyle Broder , James Stanfield

What does it take for real-deterministic c-valued (i.e., classical, commuting) variables to comply with the Heisenberg uncertainty principle? Here, we construct a class of real-deterministic c-valued variables out of the weak values…

Quantum Physics · Physics 2021-06-23 Agung Budiyono , Hermawan K. Dipojono