scholarly journals Manifestations of impurity-induceds±⇒s++transition: multiband model for dynamical response functions

2013 ◽  
Vol 15 (1) ◽  
pp. 013002 ◽  
Author(s):  
D V Efremov ◽  
A A Golubov ◽  
O V Dolgov
Keyword(s):  
Dynamical Response ◽  
Response Functions ◽  
Multiband Model

scholarly journals Rigorous bounds on dynamical response functions and time-translation symmetry breaking

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Marko Medenjak ◽  
Tomaz Prosen ◽  
Lenart Zadnik
Keyword(s):  
Dynamical Response ◽  
Response Functions ◽  
Xxz Model ◽  
Dynamical Symmetries ◽  
Time Translation ◽  
Spatially Inhomogeneous ◽  
Translation Symmetry ◽  
Local Operators ◽  
Rigorous Bounds ◽  
Translation Symmetry Breaking

Dynamical response functions are standard tools for probing local physics near the equilibrium. They provide information about relaxation properties after the equilibrium state is weakly perturbed. In this paper we focus on systems which break the assumption of thermalization by exhibiting persistent temporal oscillations. We provide rigorous bounds on the Fourier components of dynamical response functions in terms of extensive or local dynamical symmetries, i.e., extensive or local operators with periodic time dependence. Additionally, we discuss the effects of spatially inhomogeneous dynamical symmetries. The bounds are explicitly implemented on the example of an interacting Floquet system, specifically in the integrable Trotterization of the Heisenberg XXZ model.

scholarly journals Dynamical response functions and collective modes of bilayer graphene

2009 ◽  
Vol 80 (24) ◽  
Author(s):  
Giovanni Borghi ◽  
Marco Polini ◽  
Reza Asgari ◽  
A. H. MacDonald
Keyword(s):  
Bilayer Graphene ◽  
Collective Modes ◽  
Dynamical Response ◽  
Response Functions

THEORY OF TURBULENCE: ANOMALOUS THERMAL FLUX SPECTRUM

2002 ◽  
Vol 16 (13) ◽  
pp. 491-495 ◽  
Author(s):  
H. DEKKER
Keyword(s):  
Heat Flux ◽  
Shear Flow ◽  
Thermal Flux ◽  
Dynamical Response ◽  
Recent Theory ◽  
Response Functions ◽  
Hydrodynamic Turbulence ◽  
Kolmogorov Spectrum ◽  
Analytical Results ◽  
Flux Spectrum

A recent theory of fully-developed 3D hydrodynamic turbulence, involving dynamical response functions for turbulent thermal shear flow, yields analytical results for the anomalous Kolmogorov spectrum of streamwise heat flux.

THEORY OF TURBULENT HEAT FLUX

1999 ◽  
Vol 13 (18) ◽  
pp. 625-629
Author(s):  
H. DEKKER
Keyword(s):  
Thermal Flux ◽  
Turbulent Heat Flux ◽  
Inertial Range ◽  
Turbulent Shear ◽  
Dynamical Response ◽  
Turbulent Heat ◽  
Response Functions ◽  
Turbulent Shear Flow ◽  
Hydrodynamic Turbulence ◽  
Flux Spectrum

A first, nontrivial result from a novel systematic theory of fully-developed 3D hydrodynamic turbulence, viz. using dynamical response functions for turbulent shear flow, the thermal flux spectrum on the basis of the inertial range energy spectrum.

Precise all-electron dynamical response functions: Application to COHSEX and the RPA correlation energy

2015 ◽  
Vol 92 (24) ◽  
Author(s):  
Markus Betzinger ◽  
Christoph Friedrich ◽  
Andreas Görling ◽  
Stefan Blügel
Keyword(s):  
Correlation Energy ◽  
Dynamical Response ◽  
Response Functions

THEORY OF TURBULENT SHEAR STRESS

2000 ◽  
Vol 14 (21) ◽  
pp. 781-784 ◽  
Author(s):  
H. DEKKER
Keyword(s):  
Shear Stress ◽  
Energy Spectrum ◽  
Shear Flow ◽  
Inertial Range ◽  
Turbulent Shear ◽  
Dynamical Response ◽  
Response Functions ◽  
Turbulent Shear Flow ◽  
Turbulent Shear Stress ◽  
Stress Spectrum

Using dynamical response functions for 3D turbulent shear flow, I calculate the Reynolds stress spectrum on the basis of the inertial range energy spectrum.

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