activity
20052026
most citedNonperturbative renormalization-group approach to strongly-correlated lattice bosons

62 citations · 284 across the 15 of their papers we have counts for

collaborators

14 papers

cond-mat.quant-gas2026

Universal scaling of fluctuations and correlations across the superfluid transition

Paul Paquiez, Géraud Dupuy, Maxime Allemand +6

The critical behavior of a system near a continuous phase transition is commonly characterized by power laws and a set of universal critical exponents. Yet universality at phase tr…

cond-mat.quant-gas2025

From Bose glass to many-body localization in a one-dimensional disordered Bose gas

Vincent Grison, Nicolas Dupuis

We determine the finite-temperature phase diagram of a one-dimensional disordered Bose gas using bosonization and the nonperturbative functional renormalization group (RG). We disc…

cond-mat.mes-hall2025★ 3 cited

Universal Crossover in the Three-Channel Charge Kondo Model at High Transparency

Nicolas Paris, Nicolas Dupuis, Christophe Mora

Quantum impurity models provide a central framework for correlated electron physics, with quantum dots enabling controlled experimental realizations. While their weak-coupling beha…

cond-mat.quant-gas2025

Observation of universal non-Gaussian statistics of the order parameter across a continuous phase transition

Maxime Allemand, Géraud Dupuy, Paul Paquiez +5

Second-order phase transitions are characterised by critical scaling and universality. The singular behaviour of thermodynamic quantities at the transition, in particular, is deter…

cond-mat.quant-gas2025★ 2 cited

Strong-coupling RPA theory of a Bose gas near the superfluid--Mott-insulator transition: universal thermodynamics and two-body contact

Nicolas Dupuis, Moksh Bhateja, Adam Rançon

We present a strong-coupling expansion of the Bose-Hubbard model based on a mean-field treatment of the hopping term, while onsite fluctuations are taken into account exactly. This…

cond-mat.quant-gas2025★ 1 cited

Two-body contact of a Bose gas near the superfluid--Mott-insulator transition

Moksh Bhateja, Nicolas Dupuis, Adam Rançon

The two-body contact is a fundamental quantity of a dilute Bose gas that relates the thermodynamics to the short-distance two-body correlations. For a Bose gas in an optical lattic…