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Feb 08, 2012
Strongly Correlated Electrons
Superconductivity

Stripes in cuprate superconductors: Excitations and dynamic dichotomy

We present a short account of the present experimental situation of stripes in cuprates followed by a review of our present understanding of their gr…
Oct 12, 2015
Materials Science

Based on modern microscopic approaches to electrodynamics of media—as they are common practice in ab initio materials physics and axiomatized by the Functional Approach—we have subjected the standard formula for the refractive index, n2=εrμr , to a …

Microscopic Theory of the Refractive Index

We examine the refractive index from the viewpoint of modern first-principles materials physics. We first argue that the standard formula, $n^2 = \va…
Apr 21, 2017
Materials Science

We have presented a systematic and comprehensive investigation of linear electromagnetic wave equations in materials. For this purpose, we have first given a short introduction to microscopic electrodynamics in media, and then investigated the relat…

Linear electromagnetic wave equations in materials

After a short review of microscopic electrodynamics in materials, we investigate the relation of the microscopic dielectric tensor to the current res…
Jan 16, 2013

Constrained Supersymmetry after two years of LHC data: global fits wi…

We perform global fits to the parameters of the Constrained Minimal Supersymmetric Standard Model (CMSSM) and to a variant with non-universal Higgs m…
Dec 03, 2010

SU(3) Deconfinement in (2+1)d from Twisted Boundary Conditions and …

We study the pure SU(3) gauge theory in 2+1 dimensions on the lattice using 't Hooft's twisted boundary conditions to force non-vanishing center flux…
Jul 12, 2013

Neutrino Masses

The various experiments on neutrino oscillation evidenced that neutrinos have indeed non-zero masses but cannot tell us the absolute neutrino mass sc…
Jan 26, 2013
Pattern Formation and Solitons
Adaptation and Self-Organizing Systems
Biological Physics
Chemical Physics

Analytical approximations for spiral waves

We propose a non-perturbative attempt to solve the kinematic equations for spiral waves in excitable media. From the eikonal equation for the wave fr…
Aug 25, 2011

Scalable Architecture for Quantum Information Processing with Atoms i…

We review recent experimental progress towards quantum information processing and quantum simulation using neutral atoms in two-dimensional (2D) arra…
Dec 15, 2014
Materials Science
Mesoscale and Nanoscale Physics

Double-resonant LA phonon scattering in defective graphene and carbon…

We present measurements of the $D''$ Raman mode in graphene and carbon nanotubes at different laser excitation energies. The Raman mode around 1050 -…
Jul 11, 2012

Neutrino-driven wind simulations and nucleosynthesis of heavy elements

Neutrino-driven winds, which follow core-collapse supernova explosions, present a fascinating nuclear astrophysics problem that requires understandin…
Oct 31, 2012
Neurons and Cognition

Predicted selective increase of cortical magnification due to cortica…

The cortical magnification matrix M is introduced founded on a notion similar to that of the scalar cortical magnification factor M. Unlike M, this m…
Aug 26, 2016
Soft Condensed Matter

Depinning and heterogeneous dynamics of colloidal crystal layers unde…

Using Brownian dynamics (BD) simulations and an analytical approach we investigate the shear-induced, nonequilibrium dynamics of dense colloidal susp…
May 17, 2014
Pattern Formation and Solitons
Adaptation and Self-Organizing Systems
Biological Physics
Chemical Physics

Shaping wave patterns in reaction-diffusion systems

We present a method to control the two-dimensional shape of traveling wave solutions to reaction-diffusion systems, as e.g. interfaces and excitation…
Jul 22, 2012
Quantum Gases

Nonequilibrium Quantum Phase Transitions in the Ising Model

We establish a set of nonequilibrium quantum phase transitions in the Ising model driven under monochromatic nonadiabatic modulation of the transvers…
Feb 12, 2009
Mesoscale and Nanoscale Physics

Weak coupling approximations in non-Markovian Transport

We study the transport properties of the Fano-Anderson model with a Lorentzian-shaped density of states in one of the electronic reservoirs. We expli…
May 16, 2013
Plasma Physics

Generalized Beth--Uhlenbeck approach to mesons and diquarks in hot, …

An important first step in the program of hadronization of chiral quark models is the bosonization in meson and diquark channels. This procedure is p…
Feb 12, 2015

Pulse-controlled quantum gate sequences on a strongly coupled qubit …

We propose a selective dynamical decoupling scheme on a chain of permanently coupled qubits with XX type interactions, which is capable of dynamicall…
Dec 31, 2015

Multiphoton-state-assisted entanglement purification of material qubi…

We propose an entanglement purification scheme based on material qubits and ancillary coherent multiphoton states. We consider a typical QED scenario…
Aug 27, 2009
Chaotic Dynamics

Controlling synchrony by delay coupling in networks: from in-phase to…

We study synchronization in delay-coupled oscillator networks, using a master stability function approach. Within a generic model of Stuart-Landau os…
Apr 05, 2016
Optimization and Control
Systems and Control
Dynamical Systems
Exactly Solvable and Integrable Systems

Linear structures in nonlinear optimal control

We investigate optimal control of dynamical systems which are affine, i.e., linear in control, but nonlinear in state. The control task is to enforce…
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