IPM Calendar 
Tuesday 16 April 2024   Today  
Events for day: Wednesday 25 August 2021    
           11:00 - 12:00     Wednesday Weekly Seminar-google meet
What are the two major themes of theoretical high energy physics these days?

School
PARTICLES AND ACCELERATORS

Abstract: In this talk, I will briefly describe what are the major hot topics in theoretical high energy physics these days, what questions are being answered, and what motivations are being pursued.


Indico: https://indico.particles.ipm.ir/indico/event/423
https://meet.google.com/srb-pwrc-jwz





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           13:30 - 15:00     Weekly Seminar (Online)
On Consistent Theories of Massive Spin-2 Fields
https://www.skyroom.online/ch/soa/weekly-seminar

School
ASTRONOMY

Abstract
In this talk, I will review the recent results in Hamiltonian structure of Massive gravity and Bi gravity models in nonlinear level. Then, I will specifically focus on the Hamiltonian structure of three and four gravity. Finally, I present a perfect Hamiltonian structure for a multi-gravity model in the full phase space with deriving gauge generator.


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           14:00 - 15:00     Weekly Seminar
Speckle Tweezers for Controlling Collective Motion of Micro-objects

School
NANO SCIENCES

Speckle tweezers (ST) by incorporating randomly distributed light fields can be used to control micro-particles to perform manipulation tasks such as guiding and sorting. Indeed, compared to periodic potentials, ST represents a wider possibility to be operated for such tasks. In this talk, we will explore the usefulness of ST in collective motion control of an ensemble of micro-particles of high and low index with respect to the surrounding as well as nano-particle loaded low index vesicles. The potential applications toward controlling collective transportation of drug micro-containers and directed motion of a mixture of micro-objects will b ...