M
Matthias Punk
Researcher at Ludwig Maximilian University of Munich
Publications - 40
Citations - 1398
Matthias Punk is an academic researcher from Ludwig Maximilian University of Munich. The author has contributed to research in topics: Fermi liquid theory & Fermi surface. The author has an hindex of 15, co-authored 38 publications receiving 1221 citations. Previous affiliations of Matthias Punk include University of Innsbruck & Technische Universität München.
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Relaxation of Antiferromagnetic Order in Spin-1/2 Chains Following a Quantum Quench
TL;DR: This analysis indicates that the antiferromagnetic order imprinted in the initial state vanishes exponentially and the corresponding relaxation time exhibits a minimum at the critical point, in contrast to the usual notion of critical slowing down, from which a maximum is expected.
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Polaron-to-molecule transition in a strongly imbalanced Fermi gas
TL;DR: In this paper, the critical value for the polaron-to-molecule transition was derived from a variational wave function in the molecular limit, which is consistent with recent rf-spectroscopy measurements of the quasiparticle weight.
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Spectral Functions and rf Response of Ultracold Fermionic Atoms
TL;DR: In this article, the spectral functions and the associated rf response of ultracold fermionic atoms near a Feshbach resonance were calculated and compared with momentum integrated, locally resolved rf spectra of the unitary gas at arbitrary temperatures.
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Transport near the Ising-nematic quantum critical point of metals in two dimensions
TL;DR: In this paper, the memory matrix method was used to compute the resistivity of a non-Fermi liquid to second order in the impurity potential, without assuming the existence of quasiparticles.
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Topological excitations and the dynamic structure factor of spin liquids on the kagome lattice
TL;DR: A quantum spin liquid is a spin state with no magnetic order even at the lowest temperatures as mentioned in this paper, and it can explain neutron scattering data on a 'kagome lattice' antiferromagnet, in addition to the usual fractionalized spinons.