Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Levinsen J"'
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
Publikováno v:
Journal of Geodetic Science, Vol 4, Iss 1 (2014)
The Gravity field and steady state Ocean Circulation Explorer (GOCE) maps variations in the gravity field by observing second order derivatives (gradients) of the Earth gravitational potential. Flying in the low altitude of 255 km and having a spatia
Externí odkaz:
https://doaj.org/article/3016b63bd1154882becb4facba811eec
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:
Meister A., Balasis-Levinsen J., Keller K., Pedersen M. R. V., Merryman Boncori J. P., Jensen M.
Publikováno v:
Journal of Geodetic Science, Vol 14, Iss 1, Pp pp. 3293-6 (2024)
Compact active transponders (CATs) – also termed electronic corner reflectors – are compact electronic devices designed to receive, actively amplify and re-transmit a radar signal, e.g. a C-band radar signal received from a Sentinel-1 satellite.
Externí odkaz:
https://doaj.org/article/7073cd5998e843f497a67f7201a7ba18
Publikováno v:
Phys. Rev. Research 2, 043185 (2020)
We investigate the interactions between exciton-polaritons in N two-dimensional semiconductor layers embedded in a planar microcavity. In the limit of low-energy scattering, where we can ignore the composite nature of the excitons, we obtain exact an
Externí odkaz:
http://arxiv.org/abs/2004.01336
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 101, 022707 (2020)
The orbital Feshbach resonance (OFR) is a novel scheme for magnetically tuning the interactions in closed-shell fermionic atoms. Remarkably, unlike the Feshbach resonances in alkali atoms, the open and closed channels of the OFR are only very weakly
Externí odkaz:
http://arxiv.org/abs/1908.04495