Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Lindgren, E. J."'
We explore a new variational principle for studying one-dimensional quantum systems in a trapping potential. We focus on the Fermi polaron problem, where a single distinguishable impurity interacts through a contact potential with a background of ide
Externí odkaz:
http://arxiv.org/abs/1908.02849
Publikováno v:
Scientific Reports 6, 28362 (2016)
Interacting one-dimensional quantum systems play a pivotal role in physics. Exact solutions can be obtained for the homogeneous case using the Bethe ansatz and bosonisation techniques. However, these approaches are not applicable when external confin
Externí odkaz:
http://arxiv.org/abs/1512.08905
Autor:
Lindgren, E. J.
Publikováno v:
Class.Quant.Grav. 33 (2016) no.14, 145009
We study collisions of many point-like particles in three-dimensional anti-de Sitter space, generalizing the known result with two particles. We show how to construct exact solutions corresponding to the formation of either a black hole or a conical
Externí odkaz:
http://arxiv.org/abs/1512.05696
Publikováno v:
JHEP 1512 (2015) 116
It is interesting to ask how a confinement scale affects the thermalization of strongly coupled gauge theories with gravity duals. We study this question for the AdS soliton model, which underlies top-down holographic models for Yang-Mills theory and
Externí odkaz:
http://arxiv.org/abs/1511.00859
We develop a general framework for computing the holographic 2-point functions and the corresponding conductivities in asymptotically locally AdS backgrounds with an electric charge density, a constant magentic field, and possibly non-trivial scalar
Externí odkaz:
http://arxiv.org/abs/1505.04131
Autor:
Dehkharghani, A. S., Volosniev, A. G., Lindgren, E. J., Rotureau, J., Forssén, C., Fedorov, D. V., Jensen, A. S., Zinner, N. T.
Publikováno v:
Scientific Reports 5, 10675 (2015)
Strongly interacting one-dimensional quantum systems often behave in a manner that is distinctly different from their higher-dimensional counterparts. When a particle attempts to move in a one-dimensional environment it will unavoidably have to inter
Externí odkaz:
http://arxiv.org/abs/1409.4224
Publikováno v:
Phys. Rev. D 90, 086004 (2014)
An infalling shell in the hard wall model provides a simple holographic model for energy injection in a confining gauge theory. Depending on its parameters, a scalar shell either collapses into a large black brane, or scatters between the hard wall a
Externí odkaz:
http://arxiv.org/abs/1406.1454
Publikováno v:
New J. Phys. 16 (2014) 063003
The nature of strongly interacting Fermi gases and magnetism is one of the most important and studied topics in condensed-matter physics. Still, there are many open questions. A central issue is under what circumstances strong short-range repulsive i
Externí odkaz:
http://arxiv.org/abs/1304.2992
Autor:
Åkerlund, O., Lindgren, E. J., Bergsten, J., Grevholm, B., Lerner, P., Linscott, R., Forssén, C., Platter, L.
Publikováno v:
Eur. Phys. J. A (2011) 47: 122
We report on recent progress of the implementation of the similarity renormalization group (SRG) for three-body interactions in a one-dimensional, bosonic model system using the plane wave basis. We discuss our implementation of the flow equations an
Externí odkaz:
http://arxiv.org/abs/1107.3064
Autor:
Lindgren, E. J.
Publikováno v:
The Geographical Journal, 1930 Jun 01. 75(6), 518-534.
Externí odkaz:
https://www.jstor.org/stable/1784486