Results 81 to 90 of about 305,187 (339)

A hint of renormalization [PDF]

American Journal of Physics, 2004
An elementary introduction to perturbative renormalization and renormalization group is presented. No prior knowledge of field theory is necessary because we do not refer to a particular physical theory. We are thus able to disentangle what is specific to field theory and what is intrinsic to renormalization.
openaire   +4 more sources

Renormalization scheme dependence and renormalization group summation [PDF]

Canadian Journal of Physics, 2018
We consider logarithmic contributions to the free energy, instanton effective action, and Laplace sum rules in QCD that are a consequence of radiative corrections. Upon summing these contributions by using the renormalization group, all dependence on the renormalization scale parameter μ cancels.
Farrukh Chishtie, D.G.C. McKeon, D.G.C. McKeon   +2 more
openaire   +3 more sources

Hole Transfer Dynamics in Thin Films of Mixed‐Dimensional Quasi‐2D Perovskites

Advanced Functional Materials, EarlyView.
Charge transfer dynamics in quasi‐2D perovskite (PEA2MAn−1PbnI3n+1), grown with a distinct dimensionality gradient are investigated. Selective excitation of the n = 4 phase reveals efficient hole transfer to n = 2 and n = 3 within tens of picoseconds, while n = 1 acts as a hole‐blocking layer. These findings highlight the importance of minimizing n = 1
Giuseppe Ammirati, Stefano Turchini, Francesco Toschi, Patrick O'Keeffe, Alessandra Paladini, Faustino Martelli, Reem Khanfar, Daimiota Takhellambam, Sara Pescetelli, Antonio Agresti, Daniele Catone   +10 more
wiley   +1 more source

The renormalization of charge and temporality in quantum electrodynamics [PDF]

, 2008
In this article it is intended a closer look at the renormalization procedure used in quantum electrodynamics to cope with the divergent integrals that appear in higher-order calculations within the theory.
Bacelar Valente, Mario
core  

Renormalization group equations and integrability in Hamiltonian systems

, 1998
We investigate Hamiltonian systems with two degrees of freedom by using renormalization group method. We show that the original Hamiltonian systems and the renormalization group equations are integrable if the renormalization group equations are ...
Nambu, Yasusada, Yamaguchi, Yoshiyuki Y.
core   +2 more sources

Non-renormalization theorems of Supersymmetric QED in the Wess-Zumino gauge [PDF]

, 2001
The non-renormalization theorem of chiral vertices and the generalized non-renormalization theorem of the photon self energy are derived in SQED on the basis of algebraic renormalization.
Adler, Adler, Bardeen, Batalin, Batalin, Batalin, Becchi, Becchi, Becchi, Bell, Clark, D. Stöckinger, E. Kraus, Flume, Fujikawa, Giradello, Grisaru, Grisaru, Hollik, Hollik, Häußling, Häußling, Jegerlehner, Konishi, Lucchesi, Maggiore, Novikov, Novikov, Piguet, Shifman, Wess, White   +31 more
core   +2 more sources

Renormalization group fixed points of foliated gravity-matter systems [PDF]

Journal of High Energy Physics, 2017
We employ the Arnowitt-Deser-Misner formalism to study the renormalization group flow of gravity minimally coupled to an arbitrary number of scalar, vector, and Dirac fields. The decomposition of the gravitational degrees of freedom into a lapse function,
J. Biemans, Alessia Benedetta Platania, F. Saueressig   +2 more
semanticscholar   +1 more source

1D Light‐Emitting MAPbBr3 Perovskite Encapsulated in Carbon Nanotubes

Advanced Functional Materials, EarlyView.
Encapsulation of MAPbBr3 perovskite in single‐walled carbon nanotubes (SWCNTs) yields a hybrid nanomaterial with distinctive optoelectronic properties. Perovskite confinement induces a unified single‐peak photoluminescence (PL) with a reduced lifetime, while charge transfer alters the optical properties of nanotubes.
Valentina A. Eremina, Timofei Eremin, Hua Jiang, Rakesh Dhama, Jokotadeola Odutola, Humeyra Caglayan, Nikolai V. Tkachenko, Petr A. Obraztsov   +7 more
wiley   +1 more source

Renormalization in Quantum Brain Dynamics

AppliedMath, 2023
We show renormalization in Quantum Brain Dynamics (QBD) in 3+1 dimensions, namely Quantum Electrodynamics with water rotational dipole fields. First, we introduce the Lagrangian density for QBD involving terms of water rotational dipole fields, photon ...
Akihiro Nishiyama, Shigenori Tanaka, Jack A. Tuszynski   +2 more
doaj   +1 more source

Ultrasoft Renormalization in Non-Relativistic QCD [PDF]

, 2002
For Non-Relativistic QCD the velocity renormalization group correlates the renormalization scales for ultrasoft, potential and soft degrees of freedom. Here we discuss the renormalization of operators by ultrasoft gluons.
A. Czarnecki, A. Czarnecki, A. Pineda, A. Pineda, A. Pineda, A. Pineda, A. Pineda, A. Pineda, A. Pineda, A.F. Falk, A.F. Falk, A.H. Hoang, A.H. Hoang, A.H. Hoang, A.H. Hoang, A.H. Hoang, A.H. Hoang, A.H. Hoang, A.H. Hoang, A.V. Manohar, A.V. Manohar, A.V. Manohar, A.V. Manohar, A.V. Manohar, A.V. Manohar, Andre H. Hoang, B. Blok, B. Grinstein, B.A. Kniehl, C. Bauer, E. Eichten, G.T. Bodwin, G.T. Bodwin, H.W. Griesshammer, H.W. Griesshammer, Iain W. Stewart, K. Melnikov, K. Pachucki, M. Beneke, M. Beneke, M. Jezabek, M. Luke, M. Luke, M. Luke, M. Martinez, N. Brambilla, N. Brambilla, P. Labelle, W.E. Caswell, Y. Chen   +49 more
core   +2 more sources