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Johan Carlstrom on Muck Rack

Johan Carlstrom

Verified
Stockholm
As seen in: Svenska Dagbladet, Bloomberg Businessweek, Bloomberg Markets Magazine, Bloomberg News, The Globe and Mail, National Post, Australian Financial Review, Detroit News, Boston Herald, The Salt Lake Tribune, Physical Review B and
SvD:s makroekonomiska reporter med förflutet på Bloomberg och CNBC. Önskar konstruktiv dialog om allt som rör ekonomisk politik. Tips: johan.carlstrom@svd.se
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Articles

Strong Correlation Effects in Bosonic and Fermionic Systems Through an Unbiased Quantum Monte Carlo Approach

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By Egor Babaev, Johan Carlstrom Verified, Barbara Capogrosso Sansone
| avhandlingar.se
Nyckelord: NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Theoretical Physics; Teoretisk fysik; Sammanfattning: Strongly interacting many-body quantum systems constitute some of the most challenging problems in physics, and exact analytical solutions are rare.
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Fermi arcs, Landau levels, and magnetic response of the nematic Weyl liquid

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By Carlos Naya, Universidad de Alcalá, Johan Carlstrom Verified, Tomaso Bertolini
| Physical Review B
In classes of Weyl semimetals where the symmetry protects nodes with higher than unit charge, the nematic Weyl liquid appears as interactions destroy this underlying symmetry. In the symmetry-broken phase, the multiple-charge nodes are split into objects of unit charge, the position of which in momentum space is determined by the nematic order parameter. We examine the phenomenology of this phase, focusing on topological edge states and Landau levels.
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Spectral topology and its relation to Fermi arcs in strongly correlated systems

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By Johan Carlstrom Verified
| Physical Review B
Fermi gases and liquids display an excitation spectrum that is simply connected, ensuring closed Fermi surfaces. In strongly correlated systems such as the cuprate superconductors, the existence of open sheets of Fermi surface known as Fermi arcs indicate a distinctly different topology of the spectrum with no equivalent in Fermi-liquid theory. Here, we demonstrate a generic mechanism by which correlation effects in fermionic systems can change the topology of the spectrum.
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