Descrizione del progetto
Uno studio approfondisce i fenomeni non lineari nei materiali fortemente correlati
Le transizioni di fase atermica rappresentano un nuovo paradigma nella fisica esotica di non equilibrio dei materiali fortemente correlati. Il progetto DrumS, finanziato dal CER, si propone di stabilizzare questi stati atermici stimolando debolmente i sistemi quantistici a molti corpi. L’obiettivo finale è quello di dimostrare che una forte risposta a uno stimolo debole è la proprietà generica delle configurazioni. La stimolazione compensa la rottura della simmetria provocata dalle perturbazioni e stabilizza grandi valori di quantità potenzialmente utili. I risultati di DrumS per quanto riguarda i fenomeni non lineari nella materia fortemente correlata spalancheranno nuovi entusiasmanti orizzonti per la fisica della materia condensata, come ad esempio la materia quantistica sintetica, e per altri ambiti della fisica in cui le simmetrie svolgono un ruolo chiave.
Obiettivo
The DrumS project will establish a new paradigm for stabilizing exotic non-thermal states by weakly driving quantum many-body systems. Present research theoretically predicts peculiar non-thermal states in fine-tuned models with additional symmetries, for example, in integrable models with macroscopically many conservation laws. However, these models and their exact symmetries cannot be accurately realized in solid-state experiments. My hypothesis is that weak driving can boost the underlying symmetries in realistic setups and have a substantial effect on quantities protected by approximate symmetries, for example, on approximately conserved operators. The basic idea can be illustrated with a greenhouse, where windows ensure approximate conservation of energy. A weak driving by sun can have a considerable effect as it only compensates for the weak losses and stabilizes a high temperature that is not proportional to the drive. The ambitious goal of DrumS is to demonstrate that a strong response to a weak drive is a generic property of setups where driving compensates for weak symmetry breaking perturbations and stabilizes large expectation values of potentially useful quantities. While state of the art studies consider detrimental effects of perturbations, DrumS will turn approximate symmetries into a resource for novel out-of-equilibrium phenomena and technological applications. The theoretical program will promote the practical significance of fascinating idealized models, such as integrable, many-body localized, and lattice gauge theories. Driving protocols will compensate unavoidable integrability and gauge breaking to realize peculiar energy, spin and particle transport or synchronize resonant states into a superconducting response. DrumS will grow a new branch of non-linear phenomena, with exciting possibilities for realization in condensed matter experiments, synthetic quantum simulators, and other areas of physics where symmetries play a fundamental role.
Campo scientifico
Parole chiave
Programma(i)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Argomento(i)
Meccanismo di finanziamento
ERC - Support for frontier research (ERC)Istituzione ospitante
1000 Ljubljana
Slovenia