788 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR908 papers
- Sorbonne UniversitéFR627 papers
- Université Pierre-et-Marie-CurieFR413 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR107 papers
- Université Paris CitéFR96 papers
- Université Paris-SaclayFR82 papers
- École Normale Supérieure - PSLFR78 papers
- Université Paris-SudFR78 papers
- École PolytechniqueFR75 papers
- CEA Paris-SaclayFR70 papers
- Université Paris DiderotFR56 papers
- Université Paris Sciences et LettresFR55 papers
64 papers · 1 filter
Scalable spin squeezing from critical slowing down in short-range interacting systems
Tommaso Roscilde, Filippo Caleca, Adriano Angelone +1
Long-range spin-spin interactions are known to generate non-equilibrium dynamics which can squeeze the collective spin of a quantum spin ensemble in a scalable manner, leading to s…
Variational Quantum Time Evolution without the Quantum Geometric Tensor
Julien Gacon, Jannes Nys, Riccardo Rossi +2
The real- and imaginary-time evolution of quantum states are powerful tools in physics, chemistry, and beyond, to investigate quantum dynamics, prepare ground states or calculate t…
Learning ground states of gapped quantum Hamiltonians with Kernel Methods
Clemens Giuliani, Filippo Vicentini, Riccardo Rossi +1
Neural network approaches to approximate the ground state of quantum hamiltonians require the numerical solution of a highly nonlinear optimization problem. We introduce a statisti…
Variational Benchmarks for Quantum Many-Body Problems
Dian Wu, Riccardo Rossi, Filippo Vicentini +30
The continued development of computational approaches to many-body ground-state problems in physics and chemistry calls for a consistent way to assess its overall progress. In this…
A Theorem on Extensive Spectral Degeneracy for Systems with Higher Symmetries in General Dimensions
Zohar Nussinov, Gerardo Ortiz
We establish, in the spirit of the Lieb-Schultz-Mattis theorem, lower bounds on the spectral degeneracy of quantum systems with higher (Gauge Like) symmetries with rather generic p…
Robustness of Aharonov-Bohm cages in quantum walks
Hugo Perrin, Jean-Noël Fuchs, Rémy Mosseri
It was recently shown that Aharonov-Bohm (AB) cages exist for quantum walks (QW) on certain tilings -- such as the diamond chain or the dice (or ) lattice -- for a p…
Observation of the tradeoff between internal quantum nonseparability and external classical correlations
Jie Zhu, Yue Dai, S. Camalet +5
The monogamy relations of entanglement are highly significant. However, they involve only amounts of entanglement shared by different subsystems. Results on monogamy relations betw…
Quantifying nonlocality as a resource for device-independent quantum key distribution
S. Camalet
We introduce, for any bipartite Bell scenario, a measure that quantifies both the amount of nonlocality and the efficiency in device-independent quantum key distribution of a set o…
Tunable Aharonov-Bohm-like cages for quantum walks
Hugo Perrin, Jean-Noël Fuchs, Rémy Mosseri
Aharonov-Bohm cages correspond to an extreme confinement for two-dimensional tight-binding electrons in a transverse magnetic field. When the dimensionless magnetic flux per plaque…
Realization of the tradeoff between internal and external entanglement
Jie Zhu, Meng-Jun Hu, Yue Dai +6
We experimentally realize the internal and external entanglement tradeoff, which is a new kind of entanglement monogamy relation different from that usually discussed. Using a sour…
Stabilizing arrays of photonic cat states via spontaneous symmetry breaking
José Lebreuilly, Camille Aron, Christophe Mora
The controlled generation and the protection of entanglement is key to quantum simulation and quantum computation. At the single-mode level, protocols based on photonic cat states…
Existence of maximally correlated states
S. Camalet
A measure of total correlations cannot increase under deterministic local operations. We show that, for any number of systems, this condition alone does not guarantee the existence…
Internal entanglement and external correlations of any form limit each other
S. Camalet
We show a relation between entanglement and correlations of any form. The internal entanglement of a bipartite system, and its correlations with another system, limit each other. A…
Measure-independent anomaly of nonlocality
S. Camalet
We show that any Bell local state, with a hidden nonlocality that can be revealed by local filtering, is more, or equally, entangled than nonlocal states. More precisely, it can be…
Monogamy inequality for any local quantum resource and entanglement
S. Camalet
We derive a monogamy inequality for any local quantum resource and entanglement. It results from the fact that there is always a convex measure for a quantum resource, as shown her…
Monogamy inequality for entanglement and local contextuality
S. Camalet
We derive a monogamy inequality for entanglement and local contextuality, for any finite bipartite system. It essentially results from the relations between the purity of a local s…
Quantum photonics at telecom wavelengths based on lithium niobate waveguides
Olivier Alibart, Virginia D'Auria, Marc De Micheli +6
Integrated optical components on lithium niobate play a major role in standard high-speed communication systems. Over the last two decades, after the birth and positioning of quant…
Simple state preparation for contextuality tests with few observables
S. Camalet
We consider any noncontextuality inequality, and the state preparation scheme which consists in performing any von Neumann measurement on any initial state. For an inequality which…
Demonstration of Quantum Nonlocality in presence of Measurement Dependence
Djeylan Aktas, Sébastien Tanzilli, Anthony Martin +3
Quantum nonlocality stands as a resource for Device Independent Quantum Information Processing (DIQIP), as, for instance, Device Independent Quantum Key Distribution. We investigat…
Entanglement on macroscopic scales in a resonantly laser-excited atomic ensemble
S. Camalet
We show that two groups of slow two-level atoms in a weak resonant laser field, are entangled. The considered groups can be separated by a macroscopic distance, and be parts of a l…
Quantum loss of synchronization in the dynamics of two spins
Y. Liu, F. Piechon, J. N. Fuchs
Motivated by the spin self-rephasing recently observed in an atomic clock, we introduce a simple dynamical model to study the competition between dephasing and synchronization. Two…
Many Bosons in a Narrow Magnetic Feshbach Resonance
Ludovic Pricoupenko
The many-boson problem in presence of an asymptotically narrow Feshbach resonance is considered. The low energy properties are investigated using a two-channel Hamiltonian. The ene…
Steady Schrödinger cat state of a driven Ising chain
S. Camalet
For short-range interacting systems, no Schrödinger cat state can be stable when their environment is in thermal equilibrium. We show, by studying a chain of two-level systems with…
Degrees of entanglement for multipartite systems
A. I. Solomon, C. -L. Ho, G. H. E. Duchamp
We propose a unified mathematical scheme, based on a classical tensor isomorphism, for characterizing entanglement that works for pure states of multipartite systems of any number…