Zobrazeno 1 - 10
of 4 010
pro vyhledávání: '"Marchetti F."'
We develop a microscopic theory for excitons and exciton polaritons in transition metal dichalcogenide (TMD) monolayers under a perpendicular static magnetic field. We obtain numerically exact solutions for the ground and excited states, accounting f
Externí odkaz:
http://arxiv.org/abs/2410.00783
Publikováno v:
Phys. Rev. A 109, 033318 (2024)
We study the Fermi polaron problem with dipolar fermions in a bilayer geometry, where a single dipolar particle in one layer interacts with a Fermi sea of dipolar fermions in the other layer. By evaluating the polaron spectrum, we obtain the appearan
Externí odkaz:
http://arxiv.org/abs/2401.13228
Publikováno v:
Phys. Rev. B 108, 125406 (2023)
We study systematically the role of temperature in the optical response of doped two-dimensional semiconductors. By making use of a finite-temperature Fermi-polaron theory, we reveal a crossover from a quantum-degenerate regime with well-defined pola
Externí odkaz:
http://arxiv.org/abs/2212.05635
Publikováno v:
Phys. Rev. Lett. 131, 106901 (2023)
We present a quantum virial expansion for the optical response of a doped two-dimensional semiconductor. As we show, this constitutes a perturbatively exact theory in the high-temperature or low-doping regime, where the electrons' thermal wavelength
Externí odkaz:
http://arxiv.org/abs/2212.05627
Autor:
Marchetti, F.
Publikováno v:
In Applied Mathematics and Computation 15 November 2024 481
Effect of fermion indistinguishability on optical absorption of doped two-dimensional semiconductors
Publikováno v:
Phys. Rev. B 105, 125404 (2022)
We study the optical absorption spectrum of a doped two-dimensional semiconductor in the spin-valley polarized limit. In this configuration, the carriers in the Fermi sea are indistinguishable from one of the two carriers forming the exciton. Most no
Externí odkaz:
http://arxiv.org/abs/2109.12994
Autor:
Pinto, N., Di Nicola, C., Trapananti, A., Minicucci, M., Di Cicco, A., Marcelli, A., Bianconi, A., Marchetti, F., Pettinari, C., Perali, A.
Publikováno v:
Condensed Matter 5, 78 (2020)
Preliminary evidence for the occurrence of high-Tc superconductivity in alkali-doped organic materials, such as potassium-doped p-terphenyl (KPT), were recently obtained by magnetic susceptibility measurements and by the opening of a large supercondu
Externí odkaz:
http://arxiv.org/abs/2012.04899
Publikováno v:
Phys. Rev. Research 2, 023089 (2020)
We investigate the phases of two-dimensional electron-hole systems strongly coupled to a microcavity photon field in the limit of extreme charge imbalance. Using variational wave functions, we examine the competition between different electron-hole p
Externí odkaz:
http://arxiv.org/abs/1911.08808
Publikováno v:
Phys. Rev. A 99, 023623 (2019)
We study the early-time dynamics of a degenerate Bose gas after a sudden quench of the interaction strength, starting from a weakly interacting gas. By making use of a time-dependent generalization of the Nozi\`eres-Saint-James variational formalism,
Externí odkaz:
http://arxiv.org/abs/1811.12135
Publikováno v:
Phys. Rev. B 97, 245309 (2018)
We consider a polariton microcavity resonantly driven by two external lasers which simultaneously pump both lower and upper polariton branches at normal incidence. In this setup, we study the occurrence of instabilities of the pump-only solutions tow
Externí odkaz:
http://arxiv.org/abs/1804.03925