148 citations · 486 across the 12 of their papers we have counts for
12 papers
Entanglement entropy across the dynamical phase transition in the quantum model
Frederick del Pozo, Tangi Morvan, Irénée Frérot +1
We demonstrate that the dynamical phase transition of the quantum model at large leaves universal fingerprints in the infrared structure of the entanglement sp…
Scalable Ground-State Certification of Quantum Spin Systems via Structured Noncommutative Polynomial Optimization
Jie Wang, David Jansen, Irénée Frerot +3
A fundamental challenge in quantum physics is determining the ground-state properties of many-body systems. Whereas standard variational approaches posit a wave-function ansatz and…
Irreversibility of decorrelating processes: an experimental assessment in cavity QED
Guillaume Cœuret Cauquil, Patrice A. Camati, Irénée Frerot +3
Entropy production quantifies the amount of irreversibility of a physical process, leading to fundamental bounds for thermodynamic quantities. It captures the inability to run a ph…
Symmetry: a fundamental resource for quantum coherence and metrology
Irénée Frérot, Tommaso Roscilde
We introduce a new paradigm for the preparation of deeply entangled states useful for quantum metrology. We show that when the quantum state is an eigenstate of an operator , ob…
Inferring Nonlinear Many-Body Bell Inequalities From Average Two-Body Correlations: Systematic Approach for Arbitrary Spin-j Ensembles
Guillem Müller-Rigat, Albert Aloy, Maciej Lewenstein +1
Violating Bell's inequalities (BIs) allows one to certify the preparation of entangled states from minimal assumptions -- in a device-independent manner. Finding BIs tailored to ma…
Detecting many-body Bell non-locality by solving Ising models
Irénée Frérot, Tommaso Roscilde
Bell non-locality represents the ultimate consequence of quantum entanglement, fundamentally undermining the classical tenet that spatially-separated degrees of freedom possess obj…
Bell correlations at Ising quantum critical points
Angelo Piga, Albert Aloy, Maciej Lewenstein +1
When a collection of distant observers share an entangled quantum state, the statistical correlations among their measurements may violate a many-body Bell inequality, demonstratin…
Reconstructing the quantum critical fan of strongly correlated systems via quantum correlations
Irénée Frérot, Tommaso Roscilde
Albeit occurring at zero temperature, quantum critical phenomena are known to have a huge impact on the finite-temperature phase diagram of strongly correlated systems -- an aspect…
Quantum critical metrology
Irénée Frérot, Tommaso Roscilde
Quantum metrology fundamentally relies upon the efficient management of quantum uncertainties. We show that, under equilibrium conditions, the management of quantum noise becomes e…
Multi-speed prethermalization in spin models with power-law decaying interactions
Irénée Frérot, Piero Naldesi, Tommaso Roscilde
The relaxation of uniform quantum systems with finite-range interactions after a quench is generically driven by the ballistic propagation of long-lived quasi-particle excitations…
Entanglement entropy across the superfluid-insulator transition : a signature of bosonic criticality
Irénée Frérot, Tommaso Roscilde
We study the entanglement entropy and entanglement spectrum of the paradigmatic Bose-Hubbard model, describing strongly correlated bosons on a lattice. The use of a controlled appr…
Emergence of the pointer basis through the dynamics of correlations
M. F. Cornelio, O. Jiménez Farías, F. F. Fanchini +7
We use the classical correlation between a quantum system being measured and its measurement apparatus to analyze the amount of information being retrieved in a quantum measurement…