41 citations · 102 across the 9 of their papers we have counts for
10 papers
Interband excitations in the 1D limit of two-band fractional Chern insulators
Błażej Jaworowski, Piotr Kaczmarkiewicz, Paweł Potasz +1
We investigate the stability of the one-dimensional limit of Laughlin-like fractional Chern insulator with respect to the interband interaction. We propose a construction f…
Wigner crystallization in topological flat bands
Błażej Jaworowski, Alev Devrim Güçlü, Piotr Kaczmarkiewicz +3
We study the Wigner crystallization on partially filled topological flat bands. We identify the Wigner crystals by analyzing the cartesian and angular Fourier transform of the pair…
Topological phase transitions in Chern insulators within three-band models
P. Potasz, B. Jaworowski, M. Kupczyński +3
We investigate topological phase transitions in Chern insulators within three-band models, focusing on the empty band and lowest band populated by spinless fermions. We consider Li…
Double quantum dot in a quantum dash: optical properties
Piotr Kaczmarkiewicz, Paweł Machnikowski, Tilmann Kuhn
We study the optical properties of highly anisotropic quantum dot structures (quantum dashes) characterized by the presence of two trapping centers located along the structure. Suc…
Carrier trapping in a quantum dash: optical signatures
Piotr Kaczmarkiewicz, Paweł Machnikowski, Tilmann Kuhn
We theoretically study the optical properties and the electronic structure of highly elongated quantum dots (quantum dashes) and show how geometrical fluctuations affect the excito…
Electronic and optical properties in non-uniformly shaped QDashes
Piotr Kaczmarkiewicz, Paweł Machnikowski
We theoretically study the optical properties and the electronic structure of highly elongated quantum dots (quantum dashes) and show how carrier trapping due to geometrical fluctu…
Carrier trapping and luminescence polarization in quantum dashes
A. Musiał, P. Kaczmarkiewicz, G. Sęk +6
We study experimentally and theoretically polarization-dependent luminescence from an ensemble of quantum-dot-like nanostructures with a very large in-plane shape anisotropy (quant…
Second-order polaron resonances in self assembled quantum dots
Piotr Kaczmarkiewicz, Paweł Machnikowski
We theoretically study the optical properties of an InAs/GaAs quantum dot (QD) near the area of the second-order resonance between an electron confined in the QD and two longitudin…
Hole subband mixing and polarization of luminescence from quantum dashes: a simple model
Piotr Kaczmarkiewicz, Anna Musiał, Grzegorz Sęk +3
In this paper, we address the problem of luminescence polarization in the case of nanostructures characterized by an in-plane shape asymmetry. We develop a simple semi-qualitative…
Two-phonon polaron resonances in self-assembled quantum dots
Piotr Kaczmarkiewicz, Paweł Machnikowski
We study the second-order polaronic resonance between 2-LO-phonon states and p-shell electron states in a quantum dot. We show that the spectrum in the resonance area can be quanti…