Christina Rugina (University of Bucharest)*

is giving an online course on

QG/QI
Keywords for the course: entanglement, von Neumann entropy; Renyi entropy; RT surfaces; replica trick; entanglement wedge reconstruction; Tomita-Takesaki constructions; Python's Lunch; Krylov complexity; purification; DSSYK; chords; von Neumann algebras and more.

SYLLABUS
1. Lesson 1: Basics of entanglement
2. Lesson 2: Entanglement wedge reconstruction
3. Lesson 3: Tomita-Takesaki constructions. Mirror operators. State-dependence.
4. Lesson 4: Islands. Replica trick. Factorization.
5. Lesson 5: Basic complexity
6. Lesson 6: Python’s Lunch. Complexity censorship.
7. Lesson 7: Complexity and Purification.
8. Lesson 8: Purification II
9. Lesson 9: DSSYK
10. Lesson 10: Chords
11. Lesson 11: von Neumann algebras and applications - I
12. Lesson 12: von Neumann algebras and applications - II

The course will take place over zoom and there will be recordings.
First Zoom meeting: 11 October 2024 at 11 am CET

To participate, please register in advance for this meeting:
https://us06web.zoom.us/meeting/register/tZcrcOiorjIsEtMTbN4z2Xx0AE-TBnjxRLLH
After registering, you will receive a confirmation email containing information about joining the meeting. Please register by Friday, 11th October, 11 AM Bucharest time.

Please feel free to distribute the announcement in your group and elsewhere.

*Chrisitina Rugina holds a PhD in Gravitation and String Theory from University of Bucharest and is currently affiliated with this institution. She was a visiting research student at DAMTP under the supervision of Professor Gary Gibbons.

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ضمن عرض سلام و تحیت به اعضا محترم کانال

جلسات ژرنال کلاب گروه ریسمان و هولوگرافی در نیمسال جدید از روز چهارشنبه 11 مهر، ساعت 12:45-13:45 بصورت هفتگی، چهارشنبه‌ها در کلاس 21 دانشکده علوم برگزار خواهد شد.

حضور در این جلسات برای تمام علاقمندان آزاد و رایگان است.

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🔸 جزوه:
"روش‌های پیشرفته ریاضی برای فیزیکدانان نظری"

شامل مباحثی مثل:
آشنایی با هندسه و فرم‌های دیفرانسیلی
خواص فضاهای توپولوژیک
ابرتقارن
رویه‌های Calabi-Yau
و غیره

🔹براساس لکچرهای هیروچی اوگوری
.
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?Title: Geometric Quantization and Its Application In AdS3 Gravity

?‍?Presenter: Mahboubeh Abbasi (FUM)

?Time & Date: Wednesday, July 31st, 2024 (Mordad 10th, 1403), 10:00 AM (Tehran zone)

?Location: Ferdowsi University, Faculty of Science, Physics Department, Room 14 (in person)

?Abstract: Quantization is an important theme in many areas of mathematics and physics. Geometric quantization aims to associate to any classical phase space, modeled by a symplectic manifold, a quantum space, modeled by a Hilbert space. A relevant feature of geometric quantization is its close relationship with the theory of irreducible unitary representations of Lie groups. In fact, by the geometric quantization process of coadjoint orbits of a given Lie group, one can obtain its irreducible unitary representations which is known as the orbit method.
In this thesis, by using this method, we describe irreducible unitary representations of Poincaré and Galilean groups which are known as relativistic and non-relativistic particles, respectively. Then we study the Virasoro group which is a part of the asymptotic symmetry group of many gravitational systems and two-dimensional conformal field theories.

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??Title: Beyond Standard Model (SM) models as Dark Matter candidate and phenomenology of vector Dark Matter.

?‍?Presenter: Amir Amiri (FUM)

?Time & Date: Monday, July 8th, 2024 (Tir 18th, 1403), 2:00 pm (Tehran zone)

?Location: Ferdowsi University, Faculty of Science, Physics Department, Room 14 ( in person )

?Abstract: In this presentation, we want to discuss the different approaches and models as dark matter candidates, especially the Beyond Standard model (SM). At the end, we will have a look at the phenomenology of the subGeV vector dark matter Model.

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Strings 2024 Session: "The Future of String Theory: 100 Open Questions"

مجموعه صد سوال باز در بخش‌های مختلف نظریه ریسمان که از طرف برخی متخصصان مطرح شده و راهنمایی‌ برای جواب دادن به این سوالات.

Link: Here

??**Title:  Resolving Angular Momentum Flux Non-Invariance in 4D Asymptotically Flat Spacetimes

?‍?Presenter:Reza Javadi Nejad (New York University)
?*Time & Date:*14:‌00 IRST - 06 May 20‌24
?*Location:*Online
?**Abstract:The Bondi-Metzner-Sachs group is the asymptotic symmetry group of asymptotically flat spacetimes in 4D. After briefly introducing this group, I will discuss the angular momentum problem. Following an overview of possible solutions, I will present the primary issue that will be addressed in this talk: the non-invariance of the angular momentum flux. The flux of angular momentum is a quantity that is significant from both a theoretical and a numerical perspective. Theoretically, it's important to eliminate ambiguity in the definition of the flux, while in simulations, it has a direct impact on the results. I will conclude by outlining the solution to this problem.

More information
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