Welcome!

Welcome to the Quantum Optics in the Solid-State (QOSS) website! 

We are a dynamic and innovative team of experimentalists dedicated to exploring the fascinating intersection of quantum optics and novel quantum materials. We work in the Department of Physics of Materials of the UAM, within the SEMICUAM group

News

Feb 2026: the project "Photon correlation from interlayer Excitons in Moiré heterobilayers" is funded in the Research Consolidation Call 2025 :)

Dec 2025: we close the year with the first publication of Juan! Congratulations! Link to the paper

Now 25: new preprint in collaboration with the group of Zhiliang Yuan: Bell test with vacuum-one-photon states! :)

Oct 25: new preprint, on the non-resonant spin injection in perovskite polaritons (at room temperature! 🔥)

Sept 25: Amazing week in the XXI INC Summer School on Quantum Photonic Technologies

Jun 25: Andrea wins the Best Poster Prize at the Spanish Conference on Nanophotonics! 🏆 Huge congrats, Andrea! 👏✨

Jun 25: Alejandro aces his Bachelor thesis with Matrícula de Honor! Congrats, Alex — you rock! 🙌

May 25: we welcome Christos Paspalides, the new FPI-IFIMAC PhD student that will work on interlayer excitons in 2D materials.

Apr 25: we announce the INC Summer School on quantum photonic technologies, check the website and pre-register!

Apr 25: Next 14th of April, follow the Return of the QuanTour Source online!

Mar 25: Welcome to Sang Kyu Kim (TUM)! He is visiting us again for a month :) so lucky to have you here with us!

Dec 24: Memorable day in the INC Young Researchers Meeting in La Cristalera (Miraflores de la Sierra). We contribute with 1 talk of Pablo and 3 posters: Juan, Andrea & Fito :)

Nov 24: Two works published in Optica Quantum, collaborations with the groups of P. Senellart (CNRS) and T. Heindel (TUB)

Oct 24: Pablo Vaquer starts his PhD on light matter coupling of perovskites to open cavities at RT, welcome Pablo!

Sep 24: Kickoff meeting of Quantera done! It was great to meet the consortium partners, so much physics ahead!

Jul 24: we offer a FPI-PhD position within thae recently funded national Project on the development of biphotonic sources. See the section Job offers.

Jul 24: Juan Vidal starts as new PhD student of the group within the Quantera Consortium, welcome!!

Jun 24: Visiting the Majulab-CQT center of research, a 2-week stay in the lab of Maxime Richard doing experiments on resonantly driven exciton-polaritons!

Jun 24: Happy news! Carlos receives the research prize in the Experimental Sciences category within the Call for prizes for young researchers of the Universidad Autónoma de Madrid (link).

May 24: News about the QuanTour appear in the UAM website, follow the news link, and also the interviews in Onda Cero Radio station "Madrid Norte 24 Horas" (in Spanish: link) and in Ser100 in "Hoy por hoy" (also in Spanish: link)

April 24: attending the BQIT24 Conference in Bristol, it was great to be back, and meet good old friends!

March 24: finally published online! check our review article "Solid-State Single-Photon Sources: Recent Advances for Novel Quantum Materials" in Advanced Functional Materials.

Feb 24: giving a seminar in the QMP Morning Coffee Seminar series in the Univ. de Valencia, thank you Guillermo for the invitation!

Jan 24: Kim Sang Kyu (group of Prof. K. Müller, TUM) comes to visit us for a month! Welcome!

Jan 24: First preprint of 2024, collaborating with Pascale's group and Quandela, vacuum-one photon superpositions showing quantum effects in the delayed correlation peaks of the HOM histogram: link!

Dec 23: Our project COMPHORT |😌> in the Quantera 2023 call gets approved for funding!! Exciting times ahead! Congratulations to the consortium members!

Dec 23: Our review (preprint) on emergent solid-state single photon sources is out! Check it here

Dec 23: The Polaritonics issue in Optical Materials Express is finally out! Editorial work of Gabrielle Grosso (leading editor), Barbara Pietka, Dario Ballarini, Alejandro Fainstein and myself :)

Dec 23: Diego presents his poster "Mach-Zehnder interferometer for the measurement of the Hong-Ou-Mandel effect" in the "INC Young Researchers Meeting 2023", such a great job: active phase stabilisation in the interferometer for two-photon interference ✅

Dec 23: Visiting Grenoble to participate in the evaluation of the candidates in the Quantum Grenoble Doctoral Programme. Looking forwards to meeting all the friends in Institute Néel!

Dec 23: Check our publication in Optics Letters, in collaboration with the groups of Ana, Romain, and Christian: Multipartite Entanglement Encoded in the Photon-Number Basis by Sequential Excitation of a Three-Level System, Opt. Lett. 48, 6332 (2023).

Nov 23: Check our publication in PRL, great collaboration with the group of Christian: Second-Order Temporal Coherence of Polariton Lasers Based on an Atomically Thin Crystal in a Microcavity, Phys. Rev. Lett. 131, 206901 (2023).

Nov 23: Dr. Tobias Huber (Technische Physik, University of Würzburg) comes to visit us and give a seminar on "Semiconductor quantum dots as photon source for photonic quantum computing and current challenges" Check all the info here.

Sep 23: Check our publication in Nanoletters, great collaboration with the group of Christian: Monolayer-Based Single-Photon Source in a Liquid-Helium-Free Open Cavity Featuring 65% Brightness and Quantum Coherence, Nano Lett. acs.nanolett.3c02584 (2023).

May 23: Diego receives the INC 2023 Award, congrats! We will work together on implementing an interferometer for actively phase-stabilised Hong-Ou-Mandel interference 🦾

Apr 23: Carlos receives the Leonardo award from the Fundación BBVA, more information here (in Spanish).

Apr 23: Awarded project "ULTRA-BRIGHT" from the Fundación Ramon Areces, more information here (in Spanish).