Results 51 to 60 of about 23,658,748 (362)

Integrability, duality and sigma models [PDF]

Journal of High Energy Physics, 2018
Abstract We introduce and study conformal field theories specified by W −algebras commuting with certain set of screening charges. These CFT’s possess perturbations which define integrable QFT’s. We establish that these QFT’s have local and non-local Integrals of Motion and admit the perturbation theory in the weak coupling region.
Fateev, V., Litvinov, A.
openaire   +6 more sources

Elastic model for stress–tensor-induced martensitic transformation and lattice instability in silicon under large strains

Materials Research Letters, 2017
Recent molecular dynamics simulations for phase transformations (PTs) Si I $ \leftrightarrow $ Si II under multiaxial loading revealed that lattice instability criteria for Si I $ \leftrightarrow $ Si II PTs are linear in the stresses $ \sigma _i ...
Valery I. Levitas
doaj   +1 more source

Inverse magnetic catalysis in the linear sigma model [PDF]

, 2014
We compute the critical temperature for the chiral transition in the background of a magnetic field in the linear sigma model, including the quark contribution and the thermo-magnetic effects induced on the coupling constants at one loop level.
A. Ayala, M. Loewe, R. Zamora
semanticscholar   +1 more source

Balanced Scorecard ve Altı Sigma: Bütünleşik Bir Model Önerisi

Journal of Human and Work, 2015
Bu çalışmada, Balanced Scorecard ve Altı Sigma uygulama süreçlerinin bütünleştirilerek yeni bir model önerisi oluşturulması amaçlanmaktadır. Model önerisi uygulanmadan önce, stratejik planlama sürecinin tamamlanmış olması gerekmektedir.
Ahmet BARBAK
doaj   +1 more source

Equilibrium density matrices for the 2D black hole sigma models from an integrable spin chain

Journal of High Energy Physics, 2021
This work concerns the quantum Lorentzian and Euclidean black hole non-linear sigma models. For the Euclidean black hole sigma model an equilibrium density matrix is proposed, which reproduces the modular invariant partition function from the 2001 paper ...
Vladimir V. Bazhanov, Gleb A. Kotousov, Sergei L. Lukyanov   +2 more
doaj   +1 more source

Constraints on the generalized Chaplygin gas model including gamma-ray bursts via a Markov Chain Monte Carlo approach [PDF]

, 2011
We investigate observational constraints on the generalized Chaplygin gas (GCG) model including the gamma-ray bursts (GRBs) at high redshift obtained directly from the Union2 type Ia supernovae (SNe Ia) set.
Alcaniz, Amanullah, Amati, Amendola, Basilakos, Bean, Bento, Bento, Bento, Bento, Bento, Bertolami, Bertolami, Bilić, Capozziello, Cardone, Chen, Chen, Colistete, Cunha, Dai, Daly, Davis, Dev, Dev, Eisenstein, Eisenstein, Firmani, Firmani, Ghirlanda, Ghirlanda, Hu, Izzo, Kamenshchik, Kodama, L. Xu, Lewis, Li, Li, Liang, Liang, Liang, Liang, Makler, Makler, Mosquera Cuesta, Mosquera Cuesta, Multamäki, N. Liang, Nesseris, Percival, Qi, Schaefer, Schaefer, Silva, Wang, Wang, Wang, Wang, Wei, Wei, Wei, Wei, Wright, Wu, Wu, Wu, Xu, Z.-H. Zhu, Zhu   +69 more
core   +1 more source

Derivation of Meson Masses in SU(3) and SU(4) Extended Linear Sigma Model at Finite Temperature

Particles
The present study focused on the mesonic potential contributions to the Lagrangian of the extended linear sigma model (eLSM) for scalar and pseudoscalar meson fields across various quark flavors.
Abdel Nasser Tawfik, Azar I. Ahmadov, Alexandra Friesen, Yuriy Kalinovsky, Alexey Aparin, Mahmoud Hanafy   +5 more
doaj   +1 more source

Yang-Baxter deformations of the AdS5×S5 supercoset sigma model from 4D Chern-Simons theory

Journal of High Energy Physics, 2020
We present homogeneous Yang-Baxter deformations of the AdS5 ×S5 supercoset sigma model as boundary conditions of a 4D Chern-Simons theory. We first generalize the procedure for the 2D principal chiral model developed by Delduc et al.
Osamu Fukushima, Jun-ichi Sakamoto, Kentaroh Yoshida   +2 more
doaj   +1 more source

Grassmannian heterotic sigma model [PDF]

Physical Review D, 2019
21 pages, 6 ...
Michael Kreshchuk, Michael Kreshchuk, Evgeniy Kurianovych, Mikhail A. Shifman   +3 more
openaire   +2 more sources

SIGMA Animal Disease Data Model

EFSA Journal, 2019
The European Commission is routinely asking EFSA for scientific and technical support in the epidemiological analysis of animal disease outbreaks (i.e. African swine fever, lumpy skin disease and avian influenza) and to report or assess surveillance data
European Food Safety Authority (EFSA), Gabriele Zancanaro, Sotiria Eleni Antoniou, Marta Bedriova, Frank Boelaert, José Gonzales Rojas, Mario Monguidi, Helen Roberts, Sören Saxmose Nielsen, Hans‐Herman Thulke   +9 more
doaj   +1 more source