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- Helsinki Institute of PhysicsFI14 papers
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100 papers · 1 filter
Dark-state suppression and optimization of laser cooling and fluorescence in a trapped alkaline-earth-metal single ion
T. Lindvall, M. Merimaa, I. Tittonen +1
We study the formation and destabilization of dark states in a single trapped 88Sr+ ion caused by the cooling and repumping laser fields required for Doppler cooling and fluorescen…
Influence of nanoparticle size, loading, and shape on the mechanical properties of polymer nanocomposites
Aki Kutvonen, Giulia Rossi, Sakari R. Puisto +2
We study the influence of spherical, triangular, and rod-like nanoparticles on the mechanical properties of a polymer nanocomposite (PNC), via coarse-grained molecular dynamics sim…
Converting Nondeterministic Automata and Context-Free Grammars into Parikh Equivalent One-Way and Two-Way Deterministic Automata
Giovanna J. Lavado, Giovanni Pighizzini, Shinnosuke Seki
We investigate the conversion of one-way nondeterministic finite automata and context-free grammars into Parikh equivalent one-way and two-way deterministic finite automata, from a…
Characterization of a sample of intermediate-type AGN. II. Host Bulge Properties and Black Hole Mass Estimates
Erika Benítez, Jairo Méndez-Abreu, Isaura Fuentes-Carrera +6
We present a study of the host bulge properties and their relations with the black hole mass on a sample of 10 intermediate-type active galactic nuclei (AGN). Our sample consists m…
Characterization of a sample of intermediate-type AGN. I. Spectroscopic properties and serendipitous discovery of new Dual AGN
Erika Benítez, Jairo Méndez-Abreu, Isaura Fuentes-Carrera +6
A sample of 10 nearby intermediate-type active galactic nuclei (AGN) drawn from the Sloan Digital Sky Survey (SDSS-DR7) is presented. The aim of this work is to provide estimations…
Heat transport through a Josephson junction
Dmitry Golubev, Timothé Faivre, Jukka P. Pekola
We discuss heat transport through a Josephson tunnel junction under various bias conditions. We first derive the formula for the cooling power of the junction valid for arbitrary t…