Descripción del proyecto
Una investigación arroja luz sobre la dinámica colectiva de las partículas que interactúan
Las interacciones de los sistemas cuánticos con un baño externo podrían cambiar significativamente la dinámica del sistema y provocar disipación cuántica. Esto significa que la información contenida en el sistema se pierde en su entorno. Para estudiar los estados colectivos de los sistemas cuánticos abiertos que interactúan, a menudo se describen a través de los promedios de sus diferentes historias de interacción con el baño. El equipo del proyecto RAVE, financiado con fondos europeos, investigará qué dinámicas y características se pierden cuando los sistemas se describen solo con promedios. Después, los investigadores examinarán las características de los sistemas cuánticos abiertos observando cada trayectoria cuántica. La comprensión de los fenómenos colectivos que surgen de la dinámica de un grupo de trayectorias cuánticas individuales contribuirá al desarrollo de las tecnologías cuánticas.
Objetivo
With the flourishing of quantum information processing, the study of open quantum system dynamics has become of paramount importance for the ultimate success of quantum technologies. The phenomenology becomes increasingly rich when decoherence and dissipation arise in quantum systems with many degrees of freedom, leading to a flurry of different phases of matter. RAVE is devoted to the study of collective phenomena in synthetic, many-body open quantum systems through investigation of the dynamics of quantum trajectories. Following the dynamics at the level of its trajectories will capture features that are washed out by looking at averaged observables, i.e. in the density matrix. RAVE will show that there are collective phenomena visible only in the dynamics of single trajectories, and propose experimental schemes to observe them. This will lead to a new classification of phases in quantum many-body open systems and help clarify the relations between entanglement, correlations and non-equilibrium thermodynamics. In those cases where the steady-state phase breaks time-translational invariance, RAVE will contribute to unify apparently different concepts such as synchronisation and time-crystals. The statistics associated with the behaviour of quantum jumps in many-body systems is also important for characterizing the quality and performance of quantum information processing protocols. To address the key questions posed by the project, RAVE will develop a promising new methodology based on replicas and use it to design open system quantum simulators able to provide information at the level of single trajectories. RAVE is a highly interdisciplinary programme which will have significant impact in the fields of condensed matter, statistical physics, quantum information and stochastic thermodynamics.
Palabras clave
Programa(s)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Régimen de financiación
HORIZON-ERC - HORIZON ERC GrantsInstitución de acogida
75007 Paris
Francia