سخنران: زانیار قادرنژاد, دانشگاه بوکینگهام انگلیس

23 خرداد 1404
14:00 تا 16:00


Venue: Niavaran, Khosrovshahi Lecture Hall

سخنران: دکتر سعید حدادی - پژوهشگاه دانش های بنیادی، پژوهشکده ذرات و شتابگرها

22 خرداد 1404
11:00 تا 12:00

ویژگی‌های کوانتومی گربه‌های گرانشی

Link: https://www.skyroom.online/ch/ipm-particles/weekly-seminar

سخنران: سید حسین اسدپور

22 خرداد 1404
14:00 تا 15:00

چکیده:

In this presentation, we will study the spatially dependent of the coherent optical phenomena in quantum systems. Here, we will discuss the electromagnetically induced grating via optical composite vortex light in a four-level N-type atomic system. We will show that by controlling the orbital angular momentum of the optical vortex light the diffraction pattern of the Fraunhofer diffraction can be controlled in different regions of the space. Moreover, we will study the spontaneous emission (SE) spectrum of the quantum system in two different quantum systems via optical vortex light. In the first one, we will discuss the spatial pattern of the spontaneous emission spectrum in a four-level atomic system located in free space and in the second one, we will analyze the SE spectrum of a double V-type atomic system located near plasmonic nanostructure.


لینک حضور آنلاین در سمینار


https://vmeeting2.ipm.ir/b/nan-gkn-wmh-exh

Link: http://qpm.ipm.ac.ir/

سخنران: حوریه محرابیون, دانشگاه صنعتی شریف

22 خرداد 1404
14:00 تا 15:00


Venue: Niavaran, Khosrovshahi Lecture Hall

سخنران: مهدی خلیلی؛ دانشگاه برن

22 خرداد 1404
16:00 تا 18:00

آیا معرفت‌شناسی اختیارگرا برای پیشبرد بحث‌های فلسفی مفید است؟

Link: https://philosophy.ipm.ac.ir/

سخنران: دکتر الهام خزاعی - پژوهشکده ذرات و شتابگرها

21 خرداد 1404
11:00 تا 12:00

مشاهده‌ی افزونی شبه‌ذره‌ای در آستانه‌ی تولید جفت کوارک تاپ

Link: https://www.skyroom.online/ch/ipm-particles/journal-club

سخنران: S. Gariazzo, University of Turin

21 خرداد 1404
14:00 تا 15:00

Date and time

Tuesday, June 10th, 2025 (20 Khordadt), 2:00 pm (Tehran zone)




Link

https://www.skyroom.online/ch/schoolofphysics/highenergyseminar


Abstract
After a brief summary of our knowledge of the role of neutrinos in the early universe, we review the most important cosmological observables and discuss how they can help in our understanding of neutrinos and their properties. In particular, we focus on how neutrino properties change the effective number of relativistic species (Neff). Among new physics scenarios, we discuss the case of light sterile neutrinos and non-standard interactions between neutrinos and electrons or neutrinos and nucleons, presenting how they affect Neff and Big Bang Nucleosynthesis (BBN). We also show a low-temperature reheating model, which provides modifications to the expansion rate that also can affect Neff and BBN predictions.

Link: https://www.skyroom.online/ch/schoolofphysics/highenergyseminar