Research Articles (Physics)
Recent Submissions

Quantum kinetic perturbation theory for nearintegrable spin chains with weak longrange interactions
(IOP Publishing, 2019)For a transversefield Ising chain with weak longrange interactions we develop a perturbative scheme, based on quantum kinetic equations, around the integrable nearestneighbour model. We introduce, discuss, and benchmark ... 
XRay microcomputed tomography in additive manufacturing : a review of the current technology and applications
(Mary Ann Liebert, Inc., 2018)Xray microcomputed tomography (microCT) has become an established method of testing and analyzing additively manufactured parts in recent years, being especially useful and accurate for dimensional measurement and porosity ... 
Universal equilibrium scaling functions at short times after a quench
(American Physical Society, 2017)By analyzing spinspin correlation functions at relatively short distances,we showthat equilibrium nearcritical properties can be extracted at short times after quenches into the vicinity of a quantum critical point. The ... 
Scattering in a threedimensional fuzzy space
(American Physical Society, 2017)We develop scattering theory in a noncommutative space defined by an su(2) coordinate algebra. By introducing a positive operator valued measure as a replacement for strong position measurements, we are able to derive ... 
Quantum effects in the cooperative scattering of light by atomic clouds
(American Physical Society, 2017)Scattering of classical light by atomic clouds induces photonmediated effective longrange interactions between the atoms and leads to cooperative effects even at low atomic densities. We introduce a simulation technique ... 
Phases of dipolar bosons in a bilayer geometry
(American Physical Society, 2017)We study, by firstprinciples computer simulations, the lowtemperature phase diagram of bosonic dipolar gases in a bilayer geometry as a function of the two control parameters, i.e., the inplane density and the ... 
Noninvasive measurement of dynamic correlation functions
(American Physical Society, 2017)The measurement of dynamic correlation functions of quantum systems is complicated by measurement backaction. To facilitate such measurements we introduce a protocol, based on weak ancillasystem couplings, that is ... 
Classical and quantum filaments in the ground state of trapped dipolar Bose gases
(American Physical Society, 2017)We study, by quantum Monte Carlo simulations, the ground state of a harmonically confined dipolar Bose gas with aligned dipole moments and with the inclusion of a repulsive twobody potential of varying range. Two different ... 
PTsymmetric waveguide system with evidence of a thirdorder exceptional point
(American Physical Society, 2017)An experimental setup of three coupled PT symmetric waveguides showing the characteristics of a thirdorder exceptional point (EP3) has been investigated by Heiss and Wunner in an idealized model of three δfunction waveguides ... 
Search for highly excited states in ²⁸Si
(IOP Publishing, 2017)The theoretical and experimental determination of superdeformed states in nuclei in the mass region A≤40 has been since a long time one of the major challenges of nuclear structure studies. Despite the considerable ... 
Influence of nuclear cluster structure in protoninduced preequilibrium composite particle emission
(IOP Publishing, 2017)Recent statistical multistep analyses of the preequilibrium reaction⁹³Nb(p, α) at incident energies of 65 and 100 MeV are reviewed. It is shown that the αcluster structure of the target nucleus is prominently displayed ... 
Examining the role of protein structural dynamics in drug resistance in Mycobacterium tuberculosis
(Royal Society of Chemistry, 2017)Antimicrobial resistance represents a growing global health problem. The emergence of novel resistance mechanisms necessitates the development of alternative approaches to investigate the molecular fundamentals of resistance, ... 
A pilot study investigating the presence of voids in bulk fill flowable composites
(South African Dental Association, 2017)OBJECTIVE: To investigate the presence of voids in bulk fill flowable composites. METHODS: This study investigated two wellknown bulkfill flowable composites, Smart Dentin Replacement (SDR) (Dentsply/Caulk, Milford, ... 
Vacuum polarization energy for general backgrounds in one space dimension
(Elsevier, 2017)For field theories in one time and one space dimensions we propose an efficient method to compute the vacuum polarization energy of static field configurations that do not allow a decomposition into symmetric and antisymmetric ... 
Consistency between SU(3) and SU(2) covariant baryon chiral perturbation theory for the nucleon mass
(Elsevier, 2017)Treating the strange quark mass as a heavy scale compared to the light quark mass, we perform a matching of the nucleon mass in the SU(3) sector to the twoflavor case in covariant baryon chiral perturbation theory. The ... 
Superfluid filaments of dipolar bosons in free space
(American Physical Society, 2017)We systematically investigate the zero temperature phase diagram of bosons interacting via dipolar interactions in three dimensions in free space via path integral Monte Carlo simulations with a few hundreds of particles ... 
Glass transitions in monodisperse clusterforming ensembles : vortex matter in type1.5 superconductors
(American Physical Society, 2017)At low enough temperatures and high densities, the equilibrium configuration of an ensemble of ultrasoft particles is a selfassembled, ordered, cluster crystal. In the present Letter, we explore the outofequilibrium ... 
Solving Dirac equations on a 3D lattice with inverse Hamiltonian and spectral methods
(American Physical Society, 2017)A new method to solve the Dirac equation on a 3D lattice is proposed, in which the variational collapse problem is avoided by the inverse Hamiltonian method and the fermion doubling problem is avoided by performing spatial ... 
Selfconsistent relativistic quasiparticle randomphase approximation and its applications to chargeexchange excitations
(American Physical Society, 2017)The selfconsistent quasiparticle randomphase approximation (QRPA) approach is formulated in the canonical singlenucleon basis of the relativistic Hatree–Fock–Bogoliubov (RHFB) theory. This approach is applied to study ... 
Nuclear matrix element of neutrinoless doubleβ decay : relativity and shortrange correlations
(American Physical Society, 2017)Background:The discovery of neutrinoless doubleβ (0νββ) decay would demonstrate the nature of neutrinos, have profound implications for our understanding of matterantimatter mystery, and solve the mass hierarchy problem ...