2017/06/30 by Fernando J. Gómez-Ruiz, F. J. Gomez-Ruiz, O. L. Acevedo +7 · 10 citations
Chemistry · Computer Science · Physics and Astronomy · #Boson #Chemistry #Coherence (philosophical gambling strategy) #Condensed matter physics #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Qubit #Robustness (evolution) #Spectroscopy and Quantum Chemical Studies #Spins #Statistical physics #Strong Light-Matter Interactions #cond-mat.mtrl-sci #cond-mat.other #physics.bio-ph #physics.chem-ph #quant-ph
paper · pdf · doi:10.3389/fphy.2018.00092
published in Frontiers in Physics 6 (Frontiers Media) · 9 pages, 4 figures
arxiv created 2018/08/17 · openalex publication_date 2018/08/17 · arxiv updated 2018/08/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/08
We show that a pulsed stimulus can be used to generate many-body quantum coherences in light-matter systems of general size. Specifically, we calculate the exact real-time evolution of a driven, generic out-of-equilibrium system comprising an arbitrary number N qubits coupled to a global boson field. A novel form of dynamically-driven quantum coherence emerges for general N and without having to access the empirically challenging strong-coupling regime. Its properties depend on the speed of the changes in the stimulus. Non-classicalities arise within each subsystem that have eluded previous analyses. Our findings show robustness to losses and noise, and have potential functional implications at the systems level for a variety of nanosystems, including collections of N atoms, molecules, spins, or superconducting qubits in cavities -- and possibly even vibration-enhanced light harvesting processes in macromolecules.