IPM Calendar 
Wednesday 23 September 2020   Today  
Events for day: Wednesday 23 October 2019    
           13:30 - 15:00     Weekly Seminar
Probing Virtual ALPs: from Table-top Experiments to the Entire Cosmos


Axion Like Particles (ALPs) are generalizations of the QCD axions which arise from string theory due to the compactification of extra dimensions. Both the QCD axions and ALPs are prominent candidates for Dark Matter (DM). Extensive efforts have been conducted to search for axions in recent years whether from astrophysical observations or ground based experiments.
I am going to talk about our proposed table-top experiment ( 8 cm cavity ) for detecting ALPs. We have studied the impact of virtual ALPs on the polarization of the photons inside a cavity. Our scheme can potentially impact significantly on the discovery of ALPs as it cover ...

           14:00 - 16:00     Seminar
Black hole, Quantum information and Holography


School of Cognitive Sciences, Institute for Research in Fundamental Sciences (IPM),
Opposite the ARAJ, Artesh Highway, Tehran, Iran on map

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           14:00 - 15:00     Weekly Seminar
Condensed Matter and Statistical Physics Group
Plastic electronics and its traps


Organized by: School of Nano Science
Venue : Seminar Roo m (classroom A), Farmanieh Building, IPM

           14:00 - 15:00     Weekly Seminar
Combinatorics and Computing
Positivstellensatz and quantum information theory


Positivstellensatz and quantum information theory ...

           14:00 - 15:00     Weekly Seminar
Plastic electronics and its traps


Plastic electronics and its traps


Beside the big advantages of molecular electronic, presence of trapping states in
these materials is considered as one of the big dilemmas in the field. Because these trap states that lie in forbidden band gap that is detriment for current flow, and they waste power. Electron trapping is a well-recognized issue in organic semiconductors, in particular in conjugated polymers, leading to a significant electron mobility reduction in materials with electron affinities smaller than 4 eV. Many researchers are trying to figure out that what is the origin of these ...

           15:00 - 16:00     Weekly Seminar
Beautiful mathematics for beauty-full and other multi-heavy hadronic systems


Abstract: In most non-perturbative methods in hadron physics, the calculations are started with a correlation function in terms of some interpolating and transition currents in x-space. For simplicity, the calculations are then transformed to the momentum space by a Fourier transformation. To suppress the contributions of the higher states and continuum; and enhance the ground state contribution, Borel transformation as well as continuum subtraction are applied by the help of quark-hadron duality assumption. In the present study, we work out the mathematics required for these processes in the case of light and multi-heavy hadrons. We address ...

           15:30 - 17:30     Mathtematical Logic Weekly Seminar
${sf MM}^{++}$ implies ($star$)


We show that Martin's Maximum${}^{++}$ implies Woodin's ${mathbb P}_{ m max}$ axiom ($star$). This is joint work with David Aspero. ...