Indian Strings Meeting 2025

9 Dec 2025, 08:55 → 14 Dec 2025, 21:30 Asia/Kolkata

2025 (IIT Bhubaneswar & NISER)

The Indian Strings Meeting (ISM) 2025 will be held at the Indian Institute of Technology (IIT) Bhubaneswar and the National Institute of Science Education and Research (NISER), Bhubaneswar, during 9-14 Dec, 2025. This biennial international conference brings together researchers from around the world working in string theory, quantum field theory, and related areas of theoretical high-energy physics.

The meeting will feature a week-long program of plenary talks and poster presentations, highlighting the latest developments in areas such as string theory, quantum gravity, supersymmetric gauge theories, conformal field theories, and the AdS/CFT correspondence. In addition to presenting new research, the conference serves as a forum for in-depth discussions, cross-disciplinary engagement, and the exchange of ideas between established scientists, postdoctoral researchers, and graduate students.

ISM has played a central role in shaping the string theory community in India for over two decades, and the 2025 edition will continue this tradition by fostering academic interaction, international collaboration, and exposure to emerging directions in theoretical high-energy physics.

Local Organising Committee

• Abhishek Chowdhury (IIT Bhubaneswar)

• Chandrasekhar Bhamidipati (IIT Bhubaneswar)

• Shamik Banerjee (NISER Bhubaneswar)

• Yogesh Srivastava (NISER Bhubaneswar)

• Chethan N Gowdigere (NISER Bhubaneswar)

ISM 2025 Poster.pdf

Tuesday 9 December

1 Inauguration

2 Scattering of D0-branes and strings

Speaker: Ashoke Sen

scattering.pdf

11:00 Tea Break

3 Building string field theory using machine learning

Speaker: Harold Erbin

Erbin - Slides ISM.pdf

4 AdS4 boundary four point Wightman functions in Twistor Space: Factorization and a Double Copy

Speaker: Sachin Jain

ISM_Talk_sachin.pdf

5 One fish, two fish, red fish, blue fish

Speaker: Amos Yarom

ISM2025_yamos.key

13:00 Lunch + Poster Session

6 Flat holography in momentum space

Speaker: Mrityunjay Verma

Mritunjay_ISM_talk.pdf

7 Black Hole Quantum Mechanics and Generalized Error Functions

Speaker: Boris Pioline

sem_bherror_ISM2025.pdf

8 Spontaneous breaking of extremality in D-brane systems

Speaker: Swapnamay Mondol

ISM2025_Swapno.pdf

16:00 Tea Break

9 Scale-separated vacua in string theory

Speaker: Timm Wrase

Scale-separated vacua in string theory (Bhubaneswar).pdf

10 Four-dimensional spectrum generating algebra for the superstring

Speaker: Renann Lipinski

renann.pdf

11 Symmetry and causality constraints on Fermi liquids

Speaker: Subham Dutta Chowdhury

ISM 2025 Subham.pdf

Wednesday 10 December

12 Universal sectors of Carrollian CFT2

Speaker: Daniel Grumiller

grumiller.pdf

13 Carrollian adventures in Flatland

Speaker: Arjun Bagchi

Carrollholo4d.pdf

11:00 Tea Break

14 String-inspired holography for hot and dense QCD matter

Speaker: Niko Jokela

Jokela_IndianStringsMeeting2025.pdf

15 Supertranslations and Ultra-locality: Lessons from Condensed Matter Physics

Speaker: Rudranil Basu

16 Rethinking Complex Multiplication

Speaker: Abhiram Kidambi

13:00 Lunch + Poster Session

17 New Integrable Spin Chains from Deep Learning

Speaker: Shailesh Lal

ism2025shailesh.pdf

18 Quantum Fluctuations in Schwinger-Keldysh Hydroydnamics

Speaker: Akash Jain

akash.pdf

19 Magnetised Bounds for Conformal Field Theories

Speaker: Biswajit Sahoo

Magnetized_CFT_ISM.pdf

16:00 Tea Break

20 Logarithmic corrections for near-extremal Kerr-Newman Black holes

Speaker: Binata Panda

Binata_ISM25.pdf

21 Manifestly Duality Symmetric Actions: A Stringy Perspective

Speaker: Subhroneel Chakrabarti

Subhroneel_ISM.pdf

22 Conformal representation of flat space correlators and their cubic expansion

Speaker: Siddharth Prabhu

Siddharth Prabhu - Conformal Rep of Flat space correlators.pdf

Thursday 11 December

23 Semi universality of CFT_d entropy at large Spin

Speaker: Shiraz Minwalla

ISM-25.pdf

24 MEASURING MULTI-PARTITE ENTANGLEMENT

Speaker: Abhijit Gadde

ISM25 Abhijit.pdf

11:00 Tea Break

25 Aspects of the dS/CFT Correspondence

Speaker: Sandip Trivedi

aspectsofdS_ISM2025.pdf

26 Classical Solutions of Chern–Simons Theory on 3-Manifolds

Speaker: Ramadevi Pichai

talkfileis2025v2.pdf

talkfileis2025v2.pptx

27 The flat limit of AdS coupled to a bath

Speaker: Dominik Neuenfeld

2025_talk_ISM Dominik.pdf

13:00 Lunch + Poster Session

28 Strings from Feynman Diagrams

Speaker: Rajesh Gopakumar

ISM2025 Rajesh.pdf

29 The O(N) model on S^1\times S^2 at large N

Speaker: Justin David

ism_2025_justin.pdf

16:00 Tea

30 Negative Geometries and N=4 SYM

Speaker: Shruti Paranjape

Indian Strings Meeting (2)_shruti.pdf

31 Engineering Celestial CFTs

Speaker: Nishant Gupta

talk-ism_dibakar.pdf

32 Complexity in confining gauge theories-a holographic perspective.

Speaker: Dibakar Roychowdhury

talk-ism_dibakar.pdf

Friday 12 December

33 Candidate de Sitter Vacua

Speaker: Liam McAllister

ISM_Friday_McAllister.pdf

34 Contour Integrals for 4d Superconformal Gauge Theories and 2d Rational CFT

Speaker: Sunil Mukhi

Sunil Mukhi ISM.pdf

35 Generalised 4d Partition Functions and Modular Differential Equations

Speaker: Ramesh Chandra

ISM2025_Ramesh.pdf

11:00 Tea Break

36 Interfaces in TTbar-deformed 2d CFTs

Speaker: Giuseppe Policastro

ISM 2025_policastro.pdf

37 Black Hole Physics from Impossible Things

Speaker: Arnab Kundu

ISM_2025 (1)_Arnab.pdf

38 Near-extremal holographic correlators

Speaker: Blaise Goutéraux

ISM-2025-GOUTERAUX.pdf

13:00 Excursion

Saturday 13 December

39 Reimagining the origins of string theory

Speaker: Aninda Sinha

ISM2025_ASinha.pdf

40 Bootstrappy explorations on QFTs in AdS

Speaker: Apratim Kaviraj

ISM-2025_Apratim.pdf

11:00 Tea Break

41 Bubbling saddles of the gravitational index

Speaker: Davide Cassani

ISM_talk_Davide_Cassani.pdf

42 dS extremal surfaces, replicas, pseudo-Renyi entropies and time entanglement

Speaker: Narayan K

knISM25.pdf

43 How strings emerge from gravitational junctions and can be decoded as tunable quantum maps

Speaker: Ayan Mukhopadhyay

StringsFromGravity_Ayan.pdf

13:00 Lunch + Poster Session

44 On the stabilizer complexity of Hawking radiation

Speaker: Onkar Parrikar

Wigner_Hawking_talk.pdf

45 New developments in holographic quantum error correction

Speaker: Alexander Jahn

ISM talk Jahn.pdf

16:00 Tea Break

46 Public Talk : String theory & its many manifestations

Speaker: Ashoke Sen

public1.pdf

Sunday 14 December

47 Solvable Models of Heat Transport in Quantum Mechanics

Speaker: R. Loganayagam

dSSYK_talk_Loga.pdf

48 Higher spin integrability using supersymmetry algebras

Speaker: Pramod Padmanabhan

Pramod-ISM-2025.pdf

49 Deformed CFTs and two dimensional (A)dS

Speaker: Suchetan Das

Deformed_CFTs_and_two_dimensional__A_ Suchetan.pdf

11:00 Tea Break

50 Picard Lefschetz Theory & Gravitational Path Integral

Speaker: Masazumi Honda

ISM2025_Honda.pdf

51 On the Freudenthal Duality of Rotating Black Holes

Speaker: Taniya Mandal

ism_25_TaniyaMandal.pdf

52 On Inflating with Fibres and Swiss-Cheese

Speaker: Pramod Shukla

Pramod Shukla-ISM-2025.pdf

13:00 Lunch + Poster Session

53 Uplifting String Amplitudes

Speaker: Christian Jepsen

IsmTalkJepsen.pdf

54 Fortuitous cohomologies at finite coupling

Speaker: Eunwoo Lee

ISM2025_Eunwoo.pdf

55 SO(1,d+1) symmetry in ERG equation

Speaker: Semanti Dutta

ISM2025.pdf

16:00 Tea Break