IPM Calendar 
Monday 4 July 2022   Today  
Events for day: Wednesday 01 June 2022    
           09:30 - 11:30     Fabrication of ILSF 300 MHz cavity's girder and tuner

School
ILSF

List of ILSF Technical Groups Meeting

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           11:00 - 12:00     Wednesday Weekly Seminar - google meet
Meson Excitation Time as a Probe of Holographic Critical Point

School
PARTICLES AND ACCELERATORS

We study the time evolution of the expectation value of the Wilson loop as a non-local observable in a strongly coupled field theory with a critical point at finite temperature and nonzero chemical potential, which is dual to an asymptotically AdS charged black hole via gauge/gravity duality. After injection of energy into the plasma, we can define meson excitation time $t{ex}$ as a time at which the meson falls into the final excited state. We investigate the behavior of $t{ex}$ near the critical point as the system evolves towards the critical point. We obtain for slow quenches different values of the dynamical critical exponent, although f ...

           14:00 - 15:00     Combinatorics and Computing Weekly Seminar
On self-complementary Distance-regular Cayley Graphs

School
MATHEMATICS

Self-complementary graphs are related to diagonal Ramsey numbers. In this talk we give some properties of self-complementary distance-regular Cayley graphs.

To get more information about the Combinatorics and Computing Weekly Seminar and webinars Zoom link, join the following google group:
https://groups.google.com/g/ipmccs ...

           14:00 - 15:00     Weekly Seminar
Condensed Matter and Statistical Physics Group
Collective cloaking of a cluster of electrostatically defined core-shell quantum dots in graphene

School
PHYSICS

Abstract:
We study the cloaking of a cluster of electrostatically defined core-shell quantum dots in graphene. Guided by the generalized multiparticle Mie theory, the Dirac electron scattering from a cluster of quantum dots is addressed. Indeed distant quantum dots may experience a sort of individual cloaking. But despite the multiple scattering of an incident electron from a set of adjacent quantum dots, collective cloaking may happen. Via a proper choice of the radii and bias voltages of shells, the two most important scattering coefficients and hence the scattering efficiency of the cluster dramatically decrease. Energy-selective e ...

           14:00 - 15:00     Weekly Seminar
Collective cloaking of a cluster of electrostatically defined core-shell quantum dots in graphene

School
NANO SCIENCES

We study the cloaking of a cluster of electrostatically defined core-shell quantum dots in graphene. Guided by the generalized multiparticle Mie theory, the Dirac electron scattering from a cluster of quantum dots is addressed. Indeed distant quantum dots may experience a sort of individual cloaking. But despite the multiple scattering of an incident electron from a set of adjacent quantum dots, collective cloaking may happen. Via a proper choice of the radii and bias voltages of shells, the two most important scattering coefficients and hence the scattering efficiency of the cluster dramatically decrease. Energy-selective electron cloaks are ...

           15:30 - 17:30     Mathematical Logic Weekly Seminar
The Combinatorics of Higher Derived Limits

School
MATHEMATICS

This talk will divide, within a single session, into two parts. Its first half will survey main developments in the set theoretic study of the derived functors of the inverse limit, much of which traces to the 1988 question of the consistency of the additivity of strong homology. This question was recently resolved, and the second half of the talk will focus on a family of partition principles that underlay its solution. We will not assume of our audience any particular background in these subjects, least of all in the first half of the talk and we should perhaps emphasize that what most fundamentally interests us in this material are ...

           18:00 - 19:30     Weekly Seminar (Online)
Probing the dark universe using Optimal Transport theory
https://www.skyroom.online/ch/soa/weekly-seminar

School
ASTRONOMY

Astronomical observations strongly suggest that the universe is mostly dark. Its two dominant components, dark energy and dark matter, remain among the most mysterious concepts in cosmology today. The effects of these two substances are imprinted in the remaining few percent of the universe that consists of normal (baryonic) matter. Dark energy is responsible for the accelerating expansion of the universe and the existence of dark matter is deduced from the orbital properties of stars in galaxies. In this talk, we discuss the observable effects of both these phenomena and applications of the Optimal Transport (OT) theory to approach them. OT ...