activity
20222026
most citedDirect detection of down-converted photons spontaneously produced at a single Josephson junction

11 citations · 13 across the 5 of their papers we have counts for

collaborators

6 papers

quant-ph2026

Dynamically suppressing cavity dephasing induced by frequency fluctuations of a coupled nonlinear mode

Yunwei Lu, Xinyuan You, Ziwen Huang +3

High-coherence superconducting cavities offer a promising platform for quantum information, with long coherence times and negligible intrinsic dephasing. However, cavity control ge…

quant-ph2025★ 2 cited

Implementation of a quantum addressable router using superconducting qubits

Connie Miao, Sébastien Léger, Ziqian Li +3

The implementation of a quantum router capable of performing both quantum signal routing and quantum addressing (a Q2-router) represents a key step toward building quantum networks…

cond-mat.mes-hall2024★ 11 cited

Direct detection of down-converted photons spontaneously produced at a single Josephson junction

Dorian Fraudet, Izak Snyman, Denis M. Basko +7

We study spontaneous photon decay into multiple photons triggered by strong non-linearities in a superconducting quantum simulator of the boundary sine-Gordon impurity model. Previ…

cond-mat.mes-hall2024

First-order quantum breakdown of superconductivity in amorphous superconductors

Thibault Charpentier, David Perconte, Sébastien Léger +10

Continuous quantum phase transitions are widely assumed and frequently observed in various systems of quantum particles or spins. Their characteristic trait involves scaling laws g…

quant-ph2024

Using bi-fluxon tunneling to protect the Fluxonium qubit

Waël Ardati, Sébastien Léger, Shelender Kumar +8

Encoding quantum information in quantum states with disjoint wave-function support and noise insensitive energies is the key behind the idea of qubit protection. While fully protec…

quant-ph2022

Revealing the finite-frequency response of a bosonic quantum impurity

Sébastien Léger, Théo Sépulcre, Dorian Fraudet +7

Quantum impurities are ubiquitous in condensed matter physics and constitute the most stripped-down realization of many-body problems. While measuring their finite-frequency respon…