IPM Calendar 
Sunday 20 August 2017   Today  
Events for day: Wednesday 07 June 2017    
           11:00 - 12:00     Quantum information biweekly journal club
Generalized Master Equations Leading to Completely Positive Dynamics

School
NANO SCIENCES

Generalized Master Equations Leading to Completely Positive Dynamics

We provide a general construction of quantum generalized master equations with a memory kernel leading to well-defined, that is, completely positive and trace-preserving, time evolutions. The approach builds on an operator generalization of memory kernels appearing in the description of non-Markovian classical processes
and puts into evidence the nonuniqueness of the relationship arising due to the typical quantum issue of operator ordering. The approach provides a physical interpretation of the structure of the kernels, and its connection with the c ...

           14:00 - 15:00     Combinatorics and Computing Weekly Seminar
Geodesic spanners for points on a polyhedral terrain

School
MATHEMATICS

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           14:00 - 15:00     Weekly Seminar
Condensed Matter and Statistical Physics Group
Crystal structure search and electronic properties of alkali-doped Polycyclic aromatic hydrocarbons

School
PHYSICS

Classroom A ...

           14:00 - 15:00     Weekly Seminar
Crystal structure search and electronic properties of alkali-doped Polycyclic aromatic hydrocarbons

School
NANO SCIENCES

Crystal structure search and electronic properties of alkali-doped Polycyclic aromatic hydrocarbons

Alkali-doped aromatic compounds have shown evidence of metallic and superconducting phases whose precise nature is still mysterious. In potassium and rubidium-doped phenanthrene, superconducting temperatures around 5 K have been detected, but such basic elements as the stoichiometry, crystal structure, and electronic bands are still speculative. We seek to predict the crystal structure of M3-phenanthrene and -picene (M = K, Rb) using ab initio evolutionary simulation in conjunction with density functional theory (DFT), and fin ...