4 papers · 1 filter
Irreversibility of decorrelating processes: an experimental assessment in cavity QED
Guillaume CÅuret 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…
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 +5
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…
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…