Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Lars Fritz"'
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043107 (2022)
Clean two-dimensional Dirac systems have received a great deal of attention for being a prime candidate to observe hydrodynamical transport behavior in interacting electronic systems. This is mostly due to recent advances in the preparation of ultrap
Externí odkaz:
https://doaj.org/article/11f869ed24c644fe9f6a0788f949be3b
Autor:
Sonja Fischer, Michal van Hooft, Twan van der Meijden, Cristiane Morais Smith, Lars Fritz, Mikael Fremling
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043103 (2021)
One of the most prominent characteristics of two-dimensional quantum Hall systems are chiral edge modes. Their existence is a consequence of the bulk-boundary correspondence and their stability guarantees the quantization of the transverse conductanc
Externí odkaz:
https://doaj.org/article/9e63c176e70d4c5d85976afd06dc6861
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 013044 (2020)
We investigate the Hall conductivity in a Sierpiński carpet, a fractal of Hausdorff dimension d_{f}=ln(8)/ln(3)≈1.893, subject to a perpendicular magnetic field. We compute the Hall conductivity using linear response and the recursive Green functi
Externí odkaz:
https://doaj.org/article/bb20bee7c5064e7caee1500ba8d5396b
Publikováno v:
Physical Review B. 106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a6361d990d317ab47321d48f7e0457d
https://doi.org/10.1103/physrevb.106.205127
https://doi.org/10.1103/physrevb.106.205127
In this paper we study thermo-electric transport in interacting two-dimensional Dirac-type systems using a phenomenological Boltzmann approach. We consider a setup that can accommodate electrons, holes, and collective modes. In the first part of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::924b30bb0bd0a95b72bb5dd7b0582f66
http://arxiv.org/abs/2206.09687
http://arxiv.org/abs/2206.09687
In this paper we construct a one-dimensional insulator with an approximate chiral symmetry belonging to the AIII class and discuss its properties. The construction principle is the intentional pollution of the edge of a two-dimensional quantum spin H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0fbdbe9c2fca39ea19f8e0f6c9be504
http://arxiv.org/abs/2007.04966
http://arxiv.org/abs/2007.04966
Publikováno v:
Physical Review B. 96
Recently, the existence of Dirac/Weyl cones in three dimensional systems has been demonstrated experimentally. While in high energy physics the isotropy of the Dirac/Weyl cones is guaranteed by relativistic invariance, in condensed matter systems cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0325da8266522c3a8d4f394eb463fb0d
https://doi.org/10.1103/physrevb.96.195157
https://doi.org/10.1103/physrevb.96.195157
Publikováno v:
Physical Review B. 95
The classical Ising model on the frustrated 3d swedenborgite lattice has disordered spin liquid ground states for all ratios of inter- and intra-planar couplings. Quantum fluctuations due to a transverse field give rise to several exotic quantum phen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1d3ec1ffb3d39354e373ee6f4b3fc53
https://doi.org/10.1103/physrevb.95.060401
https://doi.org/10.1103/physrevb.95.060401
Publikováno v:
Physical Review B. 91
Noninteracting insulating electronic states of matter can be classified according to their symmetries in terms of topological invariants which can be related to effective surface theories. These effective surface theories are in turn topologically pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a97d425e30a4ce7453b15bfe68710c4
https://doi.org/10.1103/physrevb.91.235430
https://doi.org/10.1103/physrevb.91.235430
Publikováno v:
ResearcherID
We study the entanglement spectrum of a Chern insulator on a cylinder geometry, with the cut separating the two partitions taken parallel to the cylinder edge, at varying distances from the edge. In contrast to similar studies on a torus, there is on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd9cbce2e91d3fef19e70ba9fe24ae72