Results 21 to 30 of about 30,912 (244)

Controllable nonlinearities in Landau-quantized graphene [PDF]

open access: hybridJournal of Applied Physics
This article presents an exclusive study of the linear and higher-order susceptibilities, as well as the reduction in group index of a weak probe pulse in a three-level Landau-quantized graphene (LQG) system, under the influence of a strong control field, utilizing the phenomenon of electromagnetically induced transparency.
Abhiraj Aryan   +4 more
openalex   +2 more sources

Rabi Oscillations in Landau-Quantized Graphene [PDF]

open access: yesPhysical Review Letters, 2009
We investigate the relation between the canonical model of quantum optics, the Jaynes-Cummings Hamiltonian and Dirac fermions in quantizing magnetic field. We demonstrate that Rabi oscillations are observable in the optical response of graphene, providing us with a transparent picture about the structure of optical transitions.
Dóra, Balázs   +3 more
openaire   +6 more sources

Landau level quantization and superconductivity [PDF]

open access: yesPhysica B: Condensed Matter, 1993
Abstract A microscopic calculation of vortex-lattice states in two-dimensional electron systems at strong magnetic fields is made taking fully the Landau level quantization into account within the mean field scheme. Results of the order parameter and the local density of states are presented both in the limit of pairing in a single Landau level and ...
Akera, H.   +2 more
openaire   +1 more source

Observation of ν = 5/2 Fractional Quantum Hall Effect in Trilayer Graphene Proximitized by V-Doped WSe<sub>2</sub>. [PDF]

open access: yesAdv Mater
Even‐denominator 5/2 fractional state in trilayer graphene/V‐doped WSe2 heterostructure, mediated by proximitized magnetism, is demonstrated. An exceptionally high energy gap ∆5/2 (48 K) for the 5/2 state, significantly surpassing previous values in semiconductors and bilayer graphene (∆5/2 < 1 K) is reported.
Ghising P   +7 more
europepmc   +2 more sources

Graphene Landau Quantization in Multilayer Epitaxial Graphene [PDF]

open access: bronzeECS Meeting Abstracts, 2009
Abstract not Available.
Gregory M. Rutter
openalex   +2 more sources

Non-Hermitian Exceptional Landau Quantization in Electric Circuits [PDF]

open access: yesPhysical Review Letters, 2020
Main text + Supplemental ...
Xiao-Xiao Zhang, Marcel Franz
openaire   +3 more sources

Landau Levels in a Gravitational Field: The Schwarzschild Spacetime Case

open access: yesUniverse, 2021
We investigate the gravitational effect on Landau levels. We show that the familiar infinite Landau degeneracy of the energy levels of a quantum particle moving inside a uniform and constant magnetic field is removed by the interaction of the particle ...
Alexandre Landry, Fayçal Hammad
doaj   +1 more source

Landau Levels Analog to Electric Dipole [PDF]

open access: yes, 2005
In this letter we study the quantum dyamics of a neutral particle in the presence of an external magnetic field. We demonstrate in a specific field-dipole configuration that we have a quantization similar to the Landau Levels.
Aharonov   +26 more
core   +1 more source

Landau quantization and highly mobile fermions in an insulator [PDF]

open access: yesNature, 2021
In strongly correlated materials, quasiparticle excitations can carry fractional quantum numbers. An intriguing possibility is the formation of fractionalized, charge-neutral fermions, e.g., spinons and fermionic excitons, that result in neutral Fermi surfaces and Landau quantization in an insulator.
Pengjie Wang   +11 more
openaire   +4 more sources

Magnetic breakdown spectrum of a Kramers–Weyl semimetal

open access: yesNew Journal of Physics, 2020
We calculate the Landau levels of a Kramers–Weyl semimetal thin slab in a perpendicular magnetic field B . The coupling of Fermi arcs on opposite surfaces broadens the Landau levels with a band width that oscillates periodically in 1/ B .
G Lemut   +4 more
doaj   +1 more source

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