"Quantum Gravity and All of That" seminar series is aimed at bringing together experts, postdocs and students working on the following topics:
Quantum gravity and strings, including the early Universe scenarios
Quantum gravity and black holes
Information paradox
Holography and AdS/CFT, including holography and complexity, holography and neutron star physics
Quantum information, including the information theory
and related subjects, including gravitational waves from compact objects and phase transitions.
The seminars are expected to have about 1 hour for the main talk and 30+ minutes for discussions. We pay a special account for open discussions and exchange of opinions as the main driving force in our research community. The principal schedule is one seminar per two weeks on Thursdays at 16:00 CET (or CEST) time. This may be occasionally adjusted to account special time requests of speakers.
The seminars and afterwards discussions will be zoom-based. You have to register following the Registration link above to be included in the mailing list. Talk proposals and other inquires can be submitted through the seminar e-mail (see below).
Abstract:
In the first part of my talk, Starobinsky inflation is reviewed and extended in the framework of the modified F(R) gravity in order to accommodate production of primordial black holes (PBH) at smaller scales. Those black holes may form dark matter (DM) in the current Universe. The density and frequency of the PBH-induced gravitational waves (GW) are derived and compared to the sensitivity curves of the future space-based gravitational interferometers (LISA, DECIGO, TianQin, Taiji), which makes it possible to probe our models. In the second part of my talk, an upgrade of our models
to supergravity is introduced, and a possible connection to the MSSM and SM of elementary particles is outlined.
Thursday, April 3, 2025, 15:00 CEST (06:00 Los Angeles, 09:00 New York, 16:00 Moscow, 21:00 Shanghai, 22:00 Tokyo)
Title: Bootstrap Program for Holographic Defects
Speaker: Xinan Zhou (KITS & ShanghaiTech U.)
Abstract:
I will give an overview of the recent progress in developing analytic bootstrap techniques for studying holographic defects. These holographic defects include a wide array of interesting systems ranging from Wilson-'t Hooft loops, surface defects to theories on real project space and giant gravitons. I will focus on defect two-point functions and introduce general techniques to efficiently compute them at tree and loop levels in AdS, as well as their stringy corrections.
The registration is open to anyone interested in attending the talks and participating in the discussion sessions.
The registration is required to better maintain the seminars.
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Below is the reasonably up-to-date list of the registered seminar series participants.
We strive to keep it actual but we do process registrations manually in a bid to eliminate unwanted mistakes.
You are welcome to contact the Organizers if you notice any inconsistency regarding the above list.
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