Multiphotonics (2025)

The second MULTIPHOTONICS meeting will take place in Madrid, on 8–9 October (2025) with the support of ICMM—CSIC and IFF—CSIC. It follows the very successful MULTIPHOTONICS (2024) first edition. The workshop will likewise discuss the physics of multiphoton correlations.

If you liked Munich, you'll love Madrid!

Topics

Multiphoton generation: Single and $N$-photon emission.
Quantum light generation with properties such as entanglement or squeezing.
Frequency filtering, statistics, coherence and correlation measurements.
Quantum optics, cavity-QED, light-matter interaction and nanophotonics.

Venue

ICMM-CSIC on the Cantoblanco Campus:

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Hotel accommodation for foreign attendants is currently being arranged.

Organizers

The event is supported by a joint ICMM‒IFF effort:

• Fabrice Laussy from ICMM‒CSIC.
• Carlos Sánchez Muñoz from IFF‒CSIC.

Contact the organizers.

Confirmed Attendants

1. Serge Reynaud^* - Laboratoire Kastler Brossel, Paris
2. Sven Höfling - University of Würzburg, Würzburg
3. Jesper Mørk - Technical University of Denmark, Copenhagen
4. Zhiliang Yuan - Academy of Quantum Information Sciences, Beijing
5. Kai Müller - Technische Universität München, München
6. Tim Thomay - University at Buffalo, New York
7. Ahsan Nazir - University of Manchester, Manchester
8. Jake Iles-Smith - University of Sheffield, Sheffield
9. Philipp Schneeweiß - Humboldt-Universität zu Berlin, Berlin
10. Vincenzo D'Ambrosio - Università di Napoli Federico II, Napoli
11. Владислав Шишков (Vladislav Shishkov) - Aalto University, Espoo
12. Alexandros Spiliotis - IESL-FORTH, Heraklion
13. Juan Camilo López Carreño - University of Warsaw, Warsaw
14. Carlos Antón Solanas - Universidad Autónoma de Madrid
15. Johannes Feist - Universidad Autónoma de Madrid
16. Antonio Isaac Fernandez Dominguez - Universidad Autónoma de Madrid
17. Francesca Marchetti - Universidad Autónoma de Madrid
18. Eduardo Zubizarreta Casalengua - Technische Universität München, München
19. Sang Kyu Kim - Technische Universität München, München
20. Joaquin Guimbao Gaspar - ICMM-CSIC, Madrid
21. Jacob Ngaha - ICMM-CSIC, Madrid
22. Alejandro González Tudela - IFF-CSIC, Madrid
23. Elena del Valle - Universidad Autónoma de Madrid
24. Carlos Sánchez - IFF-CSIC, Madrid
25. Fabrice Laussy - ICMM-CSIC, Madrid

Tentative Program

Tuesday 7 October

Participants arrive.

Wednesday 8 October (Day 1)

Morning Session

Juan Camilo López Carreño

Coffee break

Post-coffee

Jesper Mørk

Quantum noise and squeezing in nanolasers.

We present a recently developed method for simulating quantum noise in nanolasers. Based on a simple stochastic interpretation of rate equations, the approach accurately reproduces quantum master equation results for few-emitter lasers and aligns with Langevin equations in macroscopic regimes. Notably, it bridges the intermediate mesoscopic regime previously inaccessible to existing models. We apply this method to analyze amplitude squeezing in nanolasers using novel cavities with extreme light confinement, which strongly enhance light-matter interaction.

Владислав Шишков

Spectral theory and statistical properties of integrated single-photon sources.

Lunch

Group photo

Afternoon Session

Francesca Marchetti

Coffee break

Thursday 9 October (Day 2)

Morning Session

Tim Thomay

Higher-order Fock states for sensing applications.

See Ref. .

Eduardo Zubizarreta Casalengua

Coffee break

Post-Coffee Session

Alejandro González Tudela

Lunch

Closing (by Carlos Sánchez)

Goodbye coffee

Participants depart

Q&A(bstracts)

At this occasion, we shall try to revive an old format of archiving Scientific debates: instead of publishing proceedings, we will publish the abstract and the (edited) Question & Answer sessions, which contains information nowhere else to be found.