Descrizione del progetto
Studiare i processi stocastici e i fenomeni a molti corpi in fisica utilizzando simulatori polaritonici analogici
I polaritoni di cavità, una miscela tra luce ed eccitazioni elettroniche della materia, si ottengono intrappolando sia la luce che gli elettroni in piccole cavità. Quando queste cavità vengono assemblate in reticoli, i polaritoni dimostrano proprietà fisiche complesse. Il progetto ANAPOLIS, finanziato dall’UE, si propone di utilizzare i reticoli di polaritoni per studiare tre problemi importanti della fisica moderna: i fenomeni di fluttuazione di fase nei condensati di polaritoni, la topologia non lineare e il magnetismo quantistico. ANAPOLIS apre la porta alla simulazione di un’ampia classe di sistemi soggetti a trazione e dissipazione esterna. I risultati del progetto offriranno opportunità uniche per cercare di risolvere i fenomeni stocastici, la fisica non lineare e a molti corpi in un contesto dissipativo guidato.
Obiettivo
Many physical systems in nature must be described using a huge number of coupled degrees of freedom. Treating these problems on a classical computer leads to computation times growing exponentially with the system size. Analog simulators are well-controlled systems to which a complex problem can be mapped, and from which the physics can be experimentally readout.
Here, we want to develop powerful analog simulators based on semiconductor cavity polaritons, light-matter quasi-particles that have appeared as a versatile platform to explore the physics of bosonic open systems. Using the fine control we now have in polariton lattices, ANAPOLIS opens the door to the simulation of a large class of systems subject to external drive and dissipation, a regime hardly explored in other platforms. Out-of-equilibrium condensation, giant Kerr non-linearity, optical driving of steady-states are the ingredients we will use in ANAPOLIS to explore three scientific objectives:
1.We will study phase fluctuations in polariton condensates and map the system to the Kardar-Parisi-Zhang equation, which describes many dynamical nonlinear systems. In 2D, solving this equation is a challenge raising open questions that no experimental platform has addressed so far.
2.We will resonantly drive polariton lattices with elaborate phase patterns to simulate the physics of charged particles in a magnetic field. Optically inducing complex valued hoppings, we will tailor topological properties for the Bogoliubov excitations, and explore non-linear physics on top of a topological superfluid.
3.We will use cavity lattices under quadratic drive to emulate the physics of the quantum transverse Ising model in a driven-dissipative context. We will use this simulator to find the steady state of the system and explore quantum magnetism and dissipative phase transitions.
ANAPOLIS will provide unique opportunities to address stochastic phenomena, nonlinear and many body physics in a driven-dissipative context.
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
75794 Paris
Francia