Description du projet
Des mécanismes de transfert de chaleur dans les systèmes quantiques prometteurs pour l’informatique quantique
Les systèmes quantiques ne sont pas complètement isolés de leur environnement. Leur interaction avec d’autres systèmes quantiques modifie considérablement leur dynamique et entraîne une dissipation quantique. Financé par le programme Marie Skłodowska-Curie, le projet XmonMASER étudiera le transport de chaleur dans les systèmes quantiques ouverts dissipatifs. Il étudiera les effets anharmoniques qui se produisent pendant le transport de chaleur dans de tels systèmes. Par ailleurs, le projet entend réaliser un maser Josephson pour démontrer l’émission cohérente de photons micro-ondes pilotés par un qubit transmon supraconducteur. Les travaux auront des implications dans le domaine de la microélectronique et de l’informatique quantique.
Objectif
My proposal is devoted to study the heat transport in dissipative open quantum systems. My main scientific and technological goals are: (i) to study the effect of anharmonicity in the heat transport in a dissipative open quantum system; and (ii) to realize a Josephson maser, to demonstrate coherent emission of microwave photons driven by a superconducting transmon qubit. To study heat transport in the quantum limit I propose a device with a qubit coupled to two resonators, each terminated by mesoscopic normal-metal reservoirs acting as source and drain thermal baths. When a thermal bias is applied across the system, the heat is transmitted between the two mesoscopic reservoirs via the qubit, and dissipated in the drain reservoir. With a sufficiently electron temperature in the heated reservoir, the population inversion prerequisite will be satisfied, and the proposed system will work as a maser, allowing for efficient on-chip generation of coherent microwave photons at low temperatures. The proposed system provides a platform to study the heat transport in dissipative open quantum systems, and both spontaneous and stimulated microwave emission. Therefore, I will contribute a pioneering technology to the field of quantum technology, and environment engineering for quantum technologies, in addition to developing a promising tool for quantum thermodynamics. The fundamental knowledge of quantum physics targeted in my proposal will be immediately applicable in several applied fields; the microelectronics industry, quantum computers, and communication sectors, and it will have a great impact on society both in Europe and globally. This fellowship will advance my career plans, enabling me to become an expert in circuit quantum thermodynamics, and receive leadership and management-oriented training. In return, I will transfer my theoretical and experimental knowledge in quantum photonics and optics obtained during my PhD to PICO group.
Champ scientifique
- natural sciencesphysical sciencesquantum physics
- natural sciencesphysical sciencesthermodynamics
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computers
- natural sciencesphysical scienceselectromagnetism and electronicsmicroelectronics
- natural sciencesphysical sciencestheoretical physicsparticle physicsphotons
Mots‑clés
Programme(s)
Régime de financement
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinateur
02150 Espoo
Finlande