34 citations · 80 across the 12 of their papers we have counts for
13 papers
Explicit closed-form propagators for time-dependent gain-loss master equations
Léonce Dupays
Time ordering is a central obstacle in driven open-system dynamics governed by master equations with time-dependent rates. We derive explicit closed-form factorizations of the chro…
Field-Space Entanglement Dynamics Between Tunnel-Coupled Luttinger Liquids
Léonce Dupays, Taufiq Murtadho, Bi Hong Tiang +2
Entanglement dynamics depend not only on how a quantum system is partitioned, but critically on how interactions across that partition are structured. For a spatial bipartition of…
Charged moments and symmetry-resolved entanglement from Ballistic Fluctuation Theory
Giorgio Li, Léonce Dupays, Paola Ruggiero
The charged moments of a reduced density matrix provide a natural starting point for deriving symmetry-resolved Rényi and entanglement entropies, which quantify how entanglement is…
Third-quantized master equations as a classical Ornstein-Uhlenbeck process
Léonce Dupays
Third quantization is used in open quantum systems to construct a superoperator basis in which quadratic Lindbladians can be turned into a normal form. From it follows the spectral…
Slow approach to adiabaticity in many-body non-Hermitian systems: the Hatano-Nelson Model
Léonce Dupays, Adolfo del Campo, Balázs Dóra
We explore the near adiabatic dynamics in a non-Hermitian quantum many-body system by investigating a finite-time ramp of the imaginary vector potential in the interacting Hatano-N…
Transitionless Quantum Driving of the Tomonaga-Luttinger Liquid
Léonce Dupays, Adolfo del Campo
Shortcuts to adiabaticity (STA) make the fast preparation of many-body states possible, circumventing the limitations of adiabatic strategies. We propose a fast STA protocol for ge…
Exact Dynamics and Shortcuts to Adiabaticity in the Tomonaga-Luttinger Liquid
Léonce Dupays, Balázs Dóra, Adolfo del Campo
Controlling many-body quantum systems is a highly challenging task required to advance quantum technologies. Here, we report progress in controlling gapless many-body quantum syste…
Time-Optimal Quantum Driving by Variational Circuit Learning
Tangyou Huang, Yongcheng Ding, Léonce Dupays +4
The simulation of quantum dynamics on a digital quantum computer with parameterized circuits has widespread applications in fundamental and applied physics and chemistry. In this c…
Tailoring Dynamical Fermionization: Delta kick cooling of a Tonks-Girardeau gas
Léonce Dupays, Jing Yang, Adolfo del Campo
In one spatial dimension, quantum exchange statistics and interactions are inextricably intertwined. As a manifestation, the expansion dynamics of a Tonks-Girardeau gas is characte…
Closed forms of the Zassenhaus formula
Léonce Dupays, Jean-Christophe Pain
The Zassenhaus formula finds many applications in theoretical physics or mathematics, from fluid dynamics to differential geometry. The non-commutativity of the elements of the alg…
Exact Delta Kick Cooling, Time-Optimal Control of Scale-Invariant Dynamics, and Shortcuts to Adiabaticity Assisted by Kicks
Léonce Dupays, David C. Spierings, Aephraim M. Steinberg +1
Delta kick cooling (DKC) is used to compress the momentum distribution of ultracold quantum matter. It combines expansion dynamics with the use of kick pulses, designed via classic…
Log-modulated rough stochastic volatility models
Christian Bayer, Fabian Andsem Harang, Paolo Pigato
We propose a new class of rough stochastic volatility models obtained by modulating the power-law kernel defining the fractional Brownian motion (fBm) by a logarithmic term, such t…
Superadiabatic thermalization of a quantum oscillator by engineered dephasing
L. Dupays, I. L. Egusquiza, A. del Campo +1
Fast nonadiabatic control protocols known as shortcuts to adiabaticity have found a plethora of applications, but their use has been severely limited to speeding up the dynamics of…