Design and implementation of high-performance devices for continuous-variable quantum key distribution Luis Trigo Vidarte To cite this version: Luis Trigo Vidarte. Design and implementation of high-performance devices for continuous-variable quantum key distribution. Optics [physics.optics]. Université Paris Saclay (COmUE), 2019. English. NNT : 2019SACLO021. tel-02516921 HAL Id: tel-02516921 https://pastel.archives-ouvertes.fr/tel-02516921 Submitted on 24 Mar 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. 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Design and implementation of high-performance devices for continuous-variable quantum key distribution These` de doctorat de l’Universite´ Paris-Saclay prepar´ ee´ a` l’Institut d’Optique Graduate School NNT : 2019SACL0021 Ecole´ doctorale n◦572 Ondes et Matiere` (EDOM) Specialit´ e´ de doctorat : Physique These` present´ ee´ et soutenue a` Palaiseau, le 20 decembre´ 2019, par LUIS TRIGO VIDARTE Composition du Jury : Delphine MORRIS-MORINI Prof., Centre de Nanosciences et de Nanotechnologies (C2N) President´ Virginia D’AURIA MCF, Universite´ Nice Sophia Antipolis Rapporteur Valerio PRUNERI Prof., Institut de Ciencies` Fotoniques` (ICFO) Rapporteur Romain ALLEAUME´ MCF, Tel´ ecom´ Paris Examinateur Thierry DEBUISSCHERT Ing. de recherche, Thales Research and Technology Examinateur Philippe GRANGIER DRCE, Institut d’Optique Graduate School; CNRS Directeur de these` Eleni DIAMANTI DR, Sorbonne Universite;´ CNRS Co-directeur de these` ` ese de doctorat Th Manuscript Conception et réalisation de dispositifs de distribution de clé quantique à variables continues à haute performance Design and implementation of high-performance devices for continuous-variable quantum key distribution Luis TRIGO VIDARTE Laboratoire Charles Fabry (Institut d’Optique Graduate School) - Laboratoire d’Informatique de Paris 6 (Sorbonne Université) Text Acknowledgements These initial words intend to express my gratitude to the people that have, in one way or another, contributed to the completion of this manuscript and my doctoral studies. The list is long, but I think all the names mentioned deserve to be here. I would like to start by thanking all the members of the Jury for their dedication, reviewing effort and useful comments. I want to dedicate particular attention to my thesis directors, Eleni and Philippe, a team that is bigger than the sum of the parts and a gracious combination of research excellence and humanity. I had the opportunity to work in different projects, where I was lucky to collaborate with many different people, in several institutions. I find it difficult to follow a particu- lar acknowledge sequence so I will begin by thanking my fellow PhD companions in the CV-QKD adventure, with whom I had the chance to spend more time in the lab. My first lab partner was Mauro Persechino and I must say that it is a pleasure to interact with him, inside and outside the lab. Later I had the opportunity to work with François Roumestan, a very insightful engineer and engaging person. Víctor Román Rodríguez of course cannot be unnoticed, thank you for the work and the Spanish laughs. Almost at the end of my PhD Damien Fruleux and Adam Raptakis started theirs, but I foresee a successful PhD path for both of them. At long distance, but with fruitful results was the collaboration with Nathan Abrams and David Álvarez Outerelo, which gave me the opportunity to learn many things about integrated optics. Not PhD students, but already CV-QKD experts by now are Adrien Cavaillès and Matteo Schiavon, as well as Amine Rhouni, our electronics expert that has a lot of patience with me. Special thoughts to the interns I had the chance to interact with, Alexandre Maïnos and Meriem Kemache. All my gratefulness for them. Regarding my brief incursion in the world of quantum money I had the pleasure to work with Mathieu Bozzio, Adeline Orieux and Iordanis Kerenidis. I was introduced to quantum communication complexity by Niraj Kumar and Federico Centrone, and to more fundamental quantum optics by Simon Neves. Shouvik Ghorai gave the necessary support in the theoretical part of CV-QKD. Thanks a lot! Coming back to integrated photonics my first collaboration was with C2N in the ANR QRYPTOS project, working with Paul Crozat, Delphine Marris-Morini, Mauro Persechino, Laurent Vivien and André Villing. Under the CRYSP project I could visit Keren Bergman’s Lightwave Research Laboratory in Columbia University, New York. There I had the opportunity to work with two fantastic PhD students, Nathan Abrams and Christine Chen. At Nokia Bell Labs in Nozay, I could work with Amirhossein "Amir" Ghazisaeidi, Jérémie Renaudier, François Roumestan and Christian Simonneau. I would like to thank them and the rest of the team for hosting me during the time I spent there. The free-space section could not have been possible without the persistence of Daniele Dequal at ASI and the help of Víctor Román Rodríguez and Anthony Leverrier, as well as the support of Giuseppe Vallone and Paolo Villoresi. It was special to collaborate with people from University of Vigo, my home university, David Álvarez Outerelo and Francisco Javier Díaz Otero in the design of chips dedi- cated to quantum information tasks (with the help of Valentina Moskalenko). I would also like to thank Carlos Mosquera Nartallo and Marcos Curty, who introduced me to digital communications and quantum key distribution respectively, for the discussions related to my work. A considerable time effort has been dedicated to the development of the electronics and cannot be neglected. In that sense I am deeply grateful to André Villing and Frédéric Moron at IOGS, Gérard Mouret at Télécom Paris, and Amine Rhouni at LIP6. Particular thanks to the IOGS mechanical workshop for providing us with reliable mechanical components. I could dedicate part of my time to teach at IOGS in which was a very rewarding experience. I would like to thank all the students and the people who helped me during this task: Denis Boiron, Julien Villemejane, Fabienne Bernard, Julien Moreau, Franck Delmotte, Pierre Dussarrat, Remy Juvenal, Thibault Harlé, Anaïs Molineri, Thierry Avignon, Cedric Lejeune, Ilan Schlesinger, Matthieu Boffety, François Goudail, Vincent Lienhard, Clémence Briosne-Fréjaville, Julien Desprès and Yvan Sortais. I was also involved in the organization of different events related to research, maybe the most intense was the participation in the local organizing committee of ICIQP 2018. I would like to thank the rest of the team: Eleni Diamanti, Pascale Senellart-Mandon, Sara Ducci, Maria Amanti, Carlos Antón Solanas and Florent Baboux, as well as the other people who helped in the event. Sara was also the organizer of the master that introduced me to research in France, so I am specially thankful for that and I use the occasion to remember my cohort colleagues and teachers. I consider that the environment is a very important factor for successful research and I had nothing but good experiences in the different groups I participated. Thank you optique quantique group at LCF (IOGS): Daniel Barredo, Rajiv Boddeda, Guillaume Boucher, Martin Bouillard, Ludovic Brossard, Antoine Browaeys, Senka Cuk,´ Sylvain De Léséleuc, Júlia Ferrer Ortas, Igor Ferrier-Barbut, Yara Hodroj, Thierry Lahaye, Florence Nogrette, Benjamin Pointard, Pascal Scholl, Kai-Niklas Schymik, Rosa Tualle-Brouri and Imam Usmani. Thank you Philippe Delaye for organizing the group seminars. Thanks to everyone in the exponentially growing LIP6 QI team (and collaborators): Hossein Aghababa, Francesco Arzani, Robert Booth, Cyril Castagnet, Ulysse Chabaud, Léo Colisson, Ellen Derbyshire, Tom Douce, Pierre Emmanuel Emeriau, Frédéric Grosshans, Elham Kashefi, Dominik Leichtle, Yao Ma, Shane Mansfield, Atul Mantri, Damian Markham, Natansh Mathur, Clément Meignant, Rawad Mezher, Luka Mu- sic, Andrea Olivo, Harold Ollivier, Rhea Parekh, Alisa Russanova, Nathan Shettell, Shraddha Singh, Anu Unnikrishnan and Raja Yehia. A little bit more distant in time, but still with a good impression in my memory, remains my period at Télécom ParisTech, where I could meet (and work with) Romain Alléaume, Martin Cordier, Leonardo Disilvestro, Masoud Ghalaii, Marc Kaplan, Niraj Kumar, Rupesh Kumar, Adrien Marie, Bill Plick, Hao Qin, Adel Sohbi, Julien Trapateau and Isabelle Zaquine. My attention also for non-quantum people: Danilo, Karel, Mario, Kasia, Jon, Andrea, Dalia, Leonardo, Michele, Mircea, Maura and Serena. I would also like to thank the work done by PCQC that facilitated the interaction with researchers like André Chailloux, Kaushik Chakraborty, Ruben Cohen, Alex Grillo, Antoine Grospellier and Vivien Londe. On the administrative side I would like to thank the teams of EDOM, Télécom Paris- Tech and LIP6, but very specially to all the people in human resources at IOGS, as well as the people in reception and reprography. They have been very efficient, professional and helpful at all times. The same can be said for the direction of LCF: thank you Patrick George and Maïké Seychelles. Turning to less professional recognitions I would like to warmly thank Adel, Anambar, Danilo, Kate, Kaushik, Mylène, Niraj and Venkat for all the moments spent together during the last few years. I cannot forget the people who made the effort to visit me and are always welcome wherever I go: Alessandra, Alicia, Ana P, Ana SA, Anna, Claire, David, Eliana, Emily, Fran, Giorgio, Julia, Jurgita, Ola, Marine, Miguel, Monika, Sumit, Tamara, Typhaine, Thomas, Thuy, Viti, Yaiza, and of course Mery and Lucía! Many thanks also to my hosts in Paris: Evelyn, Pascale, Christina, Emmanuel and especially Anne-Solange. Por último, pero non menos importante, gustaríame agradecer á miña familia todo o seu apoio e cariño ó longo de todos estes anos.