Halide perovskite artificial solids as a new platform to simulate collective phenomena in doped Mott insulators
(2023) CMD30 FisMat 2023- Abstract
- The development of Quantum Simulators, artificial platforms where the predictions of many-body theories of correlated quantum materials can be tested in a controllable and tunable way, is one of the main challenges of condensed matter physics. We introduce artificial lattices made of lead halide perovskite nanocubes as a new platform to simulate and investigate the physics of correlated quantum materials. The ultrafast optical injection of quantum-confined excitons plays a similar role to doping in real materials. We show that, at large photo-doping, the exciton gas undergoes an excitonic Mott transition, which can be mapped on the insulator-to-metal transition of the Hubbard model in a magnetic field. At lower photo-doping, the long-range... (More)
- The development of Quantum Simulators, artificial platforms where the predictions of many-body theories of correlated quantum materials can be tested in a controllable and tunable way, is one of the main challenges of condensed matter physics. We introduce artificial lattices made of lead halide perovskite nanocubes as a new platform to simulate and investigate the physics of correlated quantum materials. The ultrafast optical injection of quantum-confined excitons plays a similar role to doping in real materials. We show that, at large photo-doping, the exciton gas undergoes an excitonic Mott transition, which can be mapped on the insulator-to-metal transition of the Hubbard model in a magnetic field. At lower photo-doping, the long-range interactions drive the formation of a collective superradiant state, in which the phases of the excitons generated in each single perovskite nanocube are coherently locked. Our results demonstrate that time-resolved experiments span a parameter region of the Hubbard model in which long-range and phase-coherent orders emerge out of a doped Mott insulating phase. This physics is relevant for a broad class of phenomena, such as superconductivity and charge-density waves in correlated materials whose properties are captured by doped Hubbard models. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/0ec8c442-3af3-45ee-8f59-8299919cbaf9
- author
- Milloch, Alessandra ; Filippi, Umberto ; Capone, Massimo ; Baranov, Dmitry LU ; Manna, Liberato and Giannetti, Claudio
- organization
- publishing date
- 2023-09-04
- type
- Contribution to conference
- publication status
- published
- subject
- conference name
- CMD30 FisMat 2023
- conference location
- Milan, Italy
- conference dates
- 2023-09-04 - 2023-09-08
- language
- English
- LU publication?
- yes
- id
- 0ec8c442-3af3-45ee-8f59-8299919cbaf9
- alternative location
- https://eventi.cnism.it/cmd30-fismat/submission/view/136444933558049692
- date added to LUP
- 2024-03-18 09:56:56
- date last changed
- 2024-03-22 13:45:50
@misc{0ec8c442-3af3-45ee-8f59-8299919cbaf9, abstract = {{The development of Quantum Simulators, artificial platforms where the predictions of many-body theories of correlated quantum materials can be tested in a controllable and tunable way, is one of the main challenges of condensed matter physics. We introduce artificial lattices made of lead halide perovskite nanocubes as a new platform to simulate and investigate the physics of correlated quantum materials. The ultrafast optical injection of quantum-confined excitons plays a similar role to doping in real materials. We show that, at large photo-doping, the exciton gas undergoes an excitonic Mott transition, which can be mapped on the insulator-to-metal transition of the Hubbard model in a magnetic field. At lower photo-doping, the long-range interactions drive the formation of a collective superradiant state, in which the phases of the excitons generated in each single perovskite nanocube are coherently locked. Our results demonstrate that time-resolved experiments span a parameter region of the Hubbard model in which long-range and phase-coherent orders emerge out of a doped Mott insulating phase. This physics is relevant for a broad class of phenomena, such as superconductivity and charge-density waves in correlated materials whose properties are captured by doped Hubbard models.}}, author = {{Milloch, Alessandra and Filippi, Umberto and Capone, Massimo and Baranov, Dmitry and Manna, Liberato and Giannetti, Claudio}}, language = {{eng}}, month = {{09}}, title = {{Halide perovskite artificial solids as a new platform to simulate collective phenomena in doped Mott insulators}}, url = {{https://eventi.cnism.it/cmd30-fismat/submission/view/136444933558049692}}, year = {{2023}}, }