Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR5.3k papers
- Université de ToulouseFR2.4k papers
- Institut de Recherche en Astrophysique et PlanétologieFR2.2k papers
- Université Fédérale de Toulouse Midi-PyrénéesFR2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.1k papers
- Laboratoire de Physique ThéoriqueFR1k papers
- Institut de Mathématiques de ToulouseFR936 papers
- CEA Paris-SaclayFR797 papers
- Sorbonne UniversitéFR764 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR762 papers
- National Institute for AstrophysicsIT745 papers
- Institut de Recherche sur les Systèmes Atomiques et Moléculaires ComplexesFR730 papers
236 papers · 1 filter
Entanglement in the Dicke subspace
Aabhas Gulati, Ion Nechita, Clément Pellegrini
We provide a complete mathematical theory for the entanglement of mixtures of Dicke states. These quantum states form an important subclass of bosonic states arising in the study o…
Localization Landscape in Non-Hermitian and Floquet quantum systems
David Guéry-Odelin, François Impens
We propose a generalization of the Filoche--Mayboroda localization landscape that extends the theory well beyond the static, elliptic and Hermitian settings while preserving its ge…
On entropy production of repeated quantum measurements III. Quantum detailed balance
Tristan Benoist, Noé Cuneo, Vojkan Jakšić +1
In light of the dynamical-systems approach to entropy production in repeated quantum measurements, proposed and illustrated in Commun. Math. Phys. 357, 77-123 (2018) [arXiv:1607.00…
Random measurements are almost maximally incompatible
Andreas Bluhm, Cécilia Lancien, Ion Nechita
In this work, we investigate the incompatibility of random quantum measurements. Most previous work has focused on characterizing the maximal amount of white noise that any fixed n…
Collective emission of atomic nanorings around an optical nanofiber
J. Jiménez-Jaimes, S. Nic Chormaic, E. Brion
We theoretically investigate the collective emission of one and two circular arrays of two-level atoms surrounding an optical nanofiber. We show that the radiation eigenmodes of a…
Factorization of multimeters: a unified view on nonclassical quantum phenomena
Tim Achenbach, Andreas Bluhm, Leevi Leppäjärvi +2
Quantum theory exhibits various nonclassical features, such as measurement incompatibility, contextuality, steering, and Bell nonlocality, which distinguish it from classical physi…
Optimal control over the full counting statistics in a non-adiabatic pump
François Impens, Felippo M. D'Angelis, David Guéry-Odelin +2
We introduce a systematic procedure based on optimal control theory to address the full counting statistics of particle transport in a stochastic system. Our approach enhances the…
Unitary Transformations using Robust Optimal Control on a Cold Atom Qudit
E. Flament, N. Ombredane, F. Arrouas +4
In this paper, we design and experimentally implement various robust quantum unitary transformations (gates) acting on -dimensional vectors (qudits) by tuning a single control p…
Emulating non-Hermitian dynamics in a finite non-dissipative quantum system
Eloi Flament, François Impens, David Guéry-Odelin
We discuss the emulation of non-Hermitian dynamics during a given time window by a low-dimensional quantum system coupled to a finite set of equidistant discrete states acting as a…
Quantum model reduction for continuous-time quantum filters
Tommaso Grigoletto, Clément Pellegrini, Francesco Ticozzi
The use of quantum stochastic models is widespread in dynamical reduction, simulation of open systems, feedback control and adaptive estimation. In many applications only part of t…
The suboptimality ratio of projective measurements restricted to low-rank subspaces
Albert Senen-Cerda
Limitations in measurement instruments can hinder the implementation of some quantum algorithms. Understanding the suboptimality of such measurements with restrictions may then lea…
Positivity of state, trace, and moment polynomials, and applications in quantum information
Felix Huber, Victor Magron, Jurij Volčič
State, trace, and moment polynomials are polynomial expressions in several operator or random variables and positive functionals on their products (states, traces or expectations).…
Optimal control of a Bose-Eintein Condensate in an optical lattice: The non-linear and two-dimensional cases
E. Dionis, B. Peaudecerf, S. Guérin +2
We numerically study the optimal control of an atomic Bose-Einstein condensate in an optical lattice. We present two generalizations of the gradient-based algorithm, GRAPE, in the…
Towards Unconditional Uncloneable Encryption
Pierre Botteron, Anne Broadbent, Eric Culf +3
Uncloneable encryption is a cryptographic primitive which encrypts a classical message into a quantum ciphertext, such that two quantum adversaries are limited in their capacity of…
A Max-Flow approach to Random Tensor Networks
Khurshed Fitter, Faedi Loulidi, Ion Nechita
We study the entanglement entropy of a random tensor network (RTN) using tools from free probability theory. Random tensor networks are simple toy models that help the understandin…
On random classical marginal problems with applications to quantum information theory
Ankit Kumar Jha, Ion Nechita
In this paper, we study random instances of the classical marginal problem. We encode the problem in a graph, where the vertices have assigned fixed binary probability distribution…
Phase control of transmission and reflection in a sample of duplicated two-level systems driven by a stationary control field
F. A. Hashmi, E. Brion, M. A. Bouchene
In this article, we study the optical response of a duplicated two-level atomic medium subjected to a stationary control field and a weak co-propagating probe field, orthogonally p…
Random covariant quantum channels
Ion Nechita, Sang-Jun Park
The group symmetries inherent in quantum channels often make them tractable and applicable to various problems in quantum information theory. In this paper, we introduce natural pr…
On the simulation of quantum multimeters
Andreas Bluhm, Leevi Leppäjärvi, Ion Nechita
In the quest for robust and universal quantum devices, the notion of simulation plays a crucial role, both from a theoretical and from an applied perspective. In this work, we go b…
Generating random Gaussian states
Leevi Leppäjärvi, Ion Nechita, Ritabrata Sengupta
We develop a method for the random sampling of (multimode) Gaussian states in terms of their covariance matrix, which we refer to as a random quantum covariance matrix (RQCM). We a…
Quantum Algorithm for Signal Denoising
Sayantan Dutta, Adrian Basarab, Denis Kouamé +1
This letter presents a novel \textit{quantum algorithm} for signal denoising, which performs a thresholding in the frequency domain through amplitude amplification and using an ada…
Parallel variational quantum algorithms with gradient-informed restart to speed up optimisation in the presence of barren plateaus
Daniel Mastropietro, Georgios Korpas, Vyacheslav Kungurtsev +1
Inspired by the Fleming-Viot stochastic process, we propose a parallel implementation of variational quantum algorithms with the aim of reducing the time spent by the algorithm in…
Exponential Selection and Feedback Stabilization of Invariant Subspaces of Quantum Trajectories
Nina H. Amini, Maël Bompais, Clément Pellegrini
We show that quantum trajectories become exponentially fast supported by one of their minimal invariant subspaces. Exponential convergence is shown in expectation using Lyapunov te…
Quantum synchronization and entanglement of dissipative qubits coupled to a resonator
A. D. Chepelianskii, D. L. Shepelyansky
We study the properties of a driven cavity coupled to several qubits in the framework of a dissipative Jaynes-Cummings model. We show that the rotating wave approximation (RWA) all…