Results 51 to 60 of about 161,407 (287)

Functional renormalization group approach to zero-dimensional interacting systems

, 2004
We apply the functional renormalization group method to the calculation of dynamical properties of zero-dimensional interacting quantum systems. As case studies we discuss the anharmonic oscillator and the single impurity Anderson model.
Allen J W, Andergassen S, Andergassen S Enss T Meden V Metzner W Schollwöck U Schönhammer K, Busche T, Dusuel S Uhrig G, Georges A, Glazek S D, Hewson A C, K Schönhammer, Katanin A A, Knetter C, Kondo J, Krishnamurthy H R, Logan D, Logan D, Maier Th Jarrell M Pruschke Th Hettler M, Meden V, Meden V Enss T Andergassen S Metzner W Schönhammer K, Morris T R, Negele J W, Press W H, Pruschke Th, R Hedden, Ragwitz M, Salmhofer M, Th Pruschke, V Meden, Wegner F, Wilson K G   +28 more
core   +1 more source

The Bogolyubov renormalization group

Russian Mathematical Surveys, 1994
We begin with personal notes describing the atmosphere of "Bogoliubov renormalization group" birth. Then we expose the history of RG discovery in the QFT and of the RG method devising in the mid-fifties. The third part is devoted to proliferation of RG ideas into diverse parts of theoretical physics.
openaire   +4 more sources

Optical Control of the Thermal Conductivity in BaTiO3

Advanced Functional Materials, EarlyView.
Light‐driven manipulation of thermal conductivity in archetypal ferroelectric, BaTiO3, offers a novel and effective approach for the dynamical control of the heat flux, with potential applications in thermal management and phonon‐based logic. Abstract Achieving dynamic control over thermal conductivity remains a formidable challenge in condensed matter
Claudio Cazorla, Carlos Escorihuela‐Sayalero, Jesús Carrete, Jorge Íñiguez‐González, Riccardo Rurali   +4 more
wiley   +1 more source

On a realization of {β}-expansion in QCD

Journal of High Energy Physics, 2017
We suggest a simple algebraic approach to fix the elements of the {β}-expansion for renormalization group invariant quantities, which uses additional degrees of freedom.
S.V. Mikhailov
doaj   +1 more source

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

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

Quark Confinement and the Renormalization Group

, 2010
Recent approaches to quark confinement are reviewed, with an emphasis on their connection to renormalization group methods. Basic concepts related to confinement are introduced: the string tension, Wilson loops and Polyakov lines, string breaking, string
Migdal A. A., Migdal A. A., Tomboulis T. E.   +2 more
core   +1 more source

Renormalization group in internal space [PDF]

Physical Review D, 2005
18 pages, no ...
Polonyi, J, Sailer, K
openaire   +6 more sources

Tailoring Robust Quantum Anomalous Hall Effect via Entropy‐Engineering

Advanced Materials, EarlyView.
Bandstructure renormalization, without (w/o) spin‐orbit interaction (SOI) (left) and with SOI (right), in the low‐energy Dirac bands of zero‐entropy (purple) and entropic (green) VCl3 monolayer (ML) with long‐range ordering (LRO). Abstract The development of quantum materials and the tailoring of their functional properties is of fundamental interest ...
Syeda Amina Shabbir, Frank Fei Yun, Muhammad Nadeem, Xiaolin Wang   +3 more
wiley   +1 more source

Renormalization Group Equation for Tsallis Statistics

Advances in High Energy Physics, 2018
The nonextensive statistics proposed by Tsallis has found wide applicability, being present even in the description of experimental data from high energy collisions. A system with a fractal structure in its energy-momentum space, named thermofractal, was
Airton Deppman
doaj   +1 more source