Laboratoire de physique de l’École Normale Supérieure | LPENS

• Pré-publication, Document de travail

The degrees of freedom of multiway junctions in three dimensional gravity

Avik Chakraborty, Tanay Kibe, Martín Molina, Ayan Mukhopadhyay, Giuseppe Policastro

We demonstrate that $n$-way junctions in three dimensional gravity correspond to coupled $n-1$ strings each satisfying the Nambu-Goto equation in the smoothened background, and with sources consisting of Monge-Ampère like terms which couple the strings. For $n\geq 3$, these $n-1$ degrees of freedom…

2025. ⟨hal-05370671⟩

• Pré-publication, Document de travail

Enhancing dissipative cat qubit protection by squeezing

Rémi Rousseau, Diego Ruiz, Emanuele Albertinale, Pol d'Avezac, Danielius Banys, Ugo Blandin, Nicolas Bourdaud, Giulio Campanaro, Gil Cardoso, Nathanael Cottet, Charlotte Cullip, Samuel Deléglise, Louise Devanz, Adam Devulder, Antoine Essig, Pierre Février, Adrien Gicquel, Élie Gouzien, Antoine Gras, Jérémie Guillaud, Efe Gümüş, Mattis Hallén, Anissa Jacob, Paul Magnard, Antoine Marquet, Salim Miklass, Théau Peronnin, Stéphane Polis, Felix Rautschke, Ulysse Réglade, Julien Roul, Jeremy Stevens, Jeanne Solard, Alexandre Thomas, Jean-Loup Ville, Pierre Wan-Fat, Raphaël Lescanne, Zaki Leghtas, Joachim Cohen, Sébastien Jezouin, Anil Murani

Dissipative cat-qubits are a promising architecture for quantum processors due to their built-in quantum error correction. By leveraging two-photon stabilization, they achieve an exponentially suppressed bit-flip error rate as the distance in phase-space between their basis states increases,…

2025. ⟨hal-05364805⟩

• Pré-publication, Document de travail

High-performance local decoders for defect matching in 1D

Louis Paletta, Anthony Leverrier, Mazyar Mirrahimi, Christophe Vuillot

Local decoders, also known as cellular-automaton decoders, offer a promising path toward real-time quantum error correction by replacing centralized classical decoding, with inherent hardware constraints, by a natively parallel and streamlined architecture from a simple local transition rule. We…

2025. ⟨hal-05364617⟩

• Article dans une revue

Pure Hydrodynamic Instabilities in Active Jets of Puller Microalgae

Isabelle Eisenmann, Marco Vona, Nicolas Desprat, Takuji Ishikawa, Eric Lauga, Raphaël Jeanneret

Physical Review Letters, 2025, 135 (19), pp.198301. ⟨10.1103/jjcv-ygvq⟩. ⟨hal-05367241⟩