166 research outputs found
Om hensigt og metode
Oversætterens note: Teksten er en oversættelse af indledningen til Erich Auerbachs sidste bog, den posthumt udgivne Literatursprache und Publikum in der lateinischen Spätantike und im Mittelalter (1958)
Cities of the South, Cities of the North
In the wake of the end of the cold-war and the demise of the tripartite conceptual division of the First, Second and Third Worlds, the latter concept has been superseded by the notion of the ‘Global South’. This notion is a flexible one referring to the developing nations of the once-colonized sections of the globe. The concept does not merely register shifts in geopolitics and in the respective affiliations of nations and the economic transformations that have occurred. It also registers an emergent perception of a new set of relationships between nations of the South. It is the task of this project to explore those ‘lateral’ south-south cultural connections by mobilizing a network of prominent Global-South universities (UFF, Brazil; UNAM, Mexico; Wits, South Africa; UCAD, Senegal; JNU, India) with other universities in the southern hemisphere (UWA, Australia; SNU, Korea).
Erich Auerbach is the Visiting Chair of Global Literary Studies at the University of TübingenCities of the South, Cities of the North, symposium, ICI Berlin, 14 December 2015 <https://doi.org/10.25620/e151214
Exact Parent Hamiltonian for the Quantum Hall States in a Optical Lattice
We study lattice models of charged particles in uniform magnetic fields. We
show how longer range hopping can be engineered to produce a massively
degenerate manifold of single-particle ground states with wavefunctions
identical to those making up the lowest Landau level of continuum electrons in
a magnetic field. We find that in the presence of local interactions, and at
the appropriate filling factors, Laughlin's fractional quantum Hall
wavefunction is an exact many-body ground state of our lattice model. The
hopping matrix elements in our model fall off as a Gaussian, and when the flux
per plaquette is small compared to the fundamental flux quantum one only needs
to include nearest and next nearest neighbor hoppings. We suggest how to
realize this model using atoms in optical lattices, and describe observable
consequences of the resulting fractional quantum Hall physics.Comment: 4 pages, 3 figures. Published versio
História das formas e os tons da crítica: uma releitura de O grau zero da escrita, de Roland Barthes
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