Results 101 to 110 of about 232,370 (265)

Generalized geometry, T-duality, and renormalization group flow [PDF]

arXiv, 2013
We interpret the physical $B$-field renormalization group flow in the language of Courant algebroids, clarifying the sense in which this flow is the natural "Ricci flow" for generalized geometry. Next we show that the $B$-field renormalization group flow preserves T-duality in a natural sense.
arxiv  

The Interplay of Single Ion Anisotropy and Magnetic 3 d‐4 f Interactions in VIII2LnIII2 Butterfly Complexes

ChemistryEurope, EarlyView.
The 3d–4f coupling constants and relative angles between distinct anisotropy axes in butterfly‐shaped VIII2LnIII2 (Ln=Y, Tb−Yb) metal‐organic molecular complexes are determined using combined high‐field EPR spectroscopy and magnetisation studies. The observed chemical trend sheds light on the electronic exchange mechanism and highlights the important ...
Jan Arneth, Xian‐Feng Li, Jonas Braun, Sagar Paul, Michael Schulze, Christopher E. Anson, Wolfgang Wernsdorfer, Annie K. Powell, Rüdiger Klingeler   +8 more
wiley   +1 more source

Analysis of density matrix embedding theory around the non‐interacting limit

Communications on Pure and Applied Mathematics, EarlyView.
Abstract This article provides the first mathematical analysis of the Density Matrix Embedding Theory (DMET) method. We prove that, under certain assumptions, (i) the exact ground‐state density matrix is a fixed‐point of the DMET map for non‐interacting systems, (ii) there exists a unique physical solution in the weakly‐interacting regime, and (iii ...
Eric Cancès, Fabian M. Faulstich, Alfred Kirsch, Eloïse Letournel, Antoine Levitt   +4 more
wiley   +1 more source

The porous medium equation: Large deviations and gradient flow with degenerate and unbounded diffusion

Communications on Pure and Applied Mathematics, EarlyView.
Abstract The problem of deriving a gradient flow structure for the porous medium equation which is thermodynamic, in that it arises from the large deviations of some microscopic particle system is studied. To this end, a rescaled zero‐range process with jump rate g(k)=kα,α>1$g(k)=k^\alpha, \alpha >1$ is considered, and its hydrodynamic limit and ...
Benjamin Gess, Daniel Heydecker
wiley   +1 more source

Renormalization group for the XYZ model [PDF]

arXiv, 1998
We study in a rigorous way the XYZ spin model by Renormalization Group methods.
arxiv  

TNF signature in advanced melanoma patients treated with immune checkpoint inhibitors: Results from the MELANFα clinical study

International Journal of Cancer, EarlyView.
What's New? Tumor necrosis factor (TNF) can promote tumor resistance to immune checkpoint inhibitors (ICIs), which are now the standard treatment for advanced melanoma patients. Here, in an advanced melanoma patient cohort, TNF was investigated for a possible predictive relationship with ICI response. Assessments show that after 12 weeks of ICI therapy,
Mathieu Virazels, Amélie Lusque, Stéphanie Brayer, Matthieu Genais, Carine Dufau, Jean Milhès, Thomas Filleron, Cécile Pagès, Vincent Sibaud, Laurent Mortier, Olivier Dereure, Maha Ayyoub, Amandine Fabre, Nathalie Andrieu‐Abadie, Vera Pancaldi, Céline Colacios, Nicolas Meyer, Bruno Ségui, Anne Montfort   +18 more
wiley   +1 more source

Hamiltonian Renormalization Groups [PDF]

arXiv, 2002
A Hamiltonian renormalization group is presented. Such a formulation is relevant for chiralic systems and more appropriate than the Lagrangian formalism. An application to 1D system is presented.
arxiv  

Combining the in-medium similarity renormalization group with the density matrix renormalization group: Shell structure and information entropy

Physics Letters B, 2023
We propose a novel many-body framework combining the density matrix renormalization group (DMRG) with the valence-space (VS) formulation of the in-medium similarity renormalization group.
A. Tichai, S. Knecht, A.T. Kruppa, Ö. Legeza, C.P. Moca, A. Schwenk, M.A. Werner, G. Zarand   +7 more
doaj  

Critical phenomena in the Dyson hierarchical model and renormalization group [PDF]

arXiv, 2010
We review some results on the critical phenomena in the Dyson hierarchical model and renormalization group.
arxiv  

Similarity renormalization group evolution of N N interactions within a subtractive renormalization scheme

EPJ Web of Conferences, 2010
We apply the similarity renormalization group (SRG) approach to evolve a nucleon-nucleon (N N) interaction in leading-order (LO) chiral effective field theory (ChEFT), renormalized within the framework of the subtracted kernel method (SKM).
Durães F.O., Szpigel S., Timóteo V.S.
doaj   +1 more source