J
Johannes Hauschild
Researcher at University of California, Berkeley
Publications - 15
Citations - 627
Johannes Hauschild is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Density matrix renormalization group & Quantum entanglement. The author has an hindex of 9, co-authored 10 publications receiving 359 citations. Previous affiliations of Johannes Hauschild include Max Planck Society & Technische Universität München.
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Efficient numerical simulations with Tensor Networks: Tensor Network Python (TeNPy)
TL;DR: TeNPy as discussed by the authors is a tensor library for Python that provides a compact review of basic tensor state (TPS) concepts and a practical guide to implement abelian symmetries to accelerate tensor operations.
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Efficient simulation of moiré materials using the density matrix renormalization group
Tomohiro Soejima,Daniel E. Parker,Nick Bultinck,Nick Bultinck,Johannes Hauschild,Michael P. Zaletel,Michael P. Zaletel +6 more
TL;DR: In this paper, the ground state of twisted bilayer graphene (tBLG) has been determined using matrix product operator (MPO) compression with mixed-$x\phantom{\rule{0}{0ex}}k$ space density matrix renormalization group (DMRG) with matrix product operators compression.
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Strain-Induced Quantum Phase Transitions in Magic-Angle Graphene.
TL;DR: In this paper, the effect of uniaxial heterostrain on the interacting phase diagram of magic-angle twisted bilayer graphene was investigated, and it was shown that small strain values (e∼0.1%-0.2%) drive a zero-temperature phase transition between the symmetry-broken "Kramer intervalley-coherent" insulator and a nematic semimetal.
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Finding purifications with minimal entanglement
Johannes Hauschild,Eyal Leviatan,Jens H. Bardarson,Ehud Altman,Michael P. Zaletel,Frank Pollmann +5 more
TL;DR: Hauschild et al. as discussed by the authors introduced an MPS-based method that allows to find the minimally entangled representation by iteratively minimizing the second Renyi entropy, and showed that a slowdown of the entanglement growth following a quench of an infinite temperature state is possible.
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The Drude weight of the spin-1/2 XXZ chain: density matrix renormalization group versus exact diagonalization
TL;DR: In this paper, the authors revisited the problem of the spin Drude weight D of the integrable spin-1/2 XXZ chain using two complementrary approaches, exact diagonalization (ED) and the time-dependent density-matrix renormalization group (tDMRG).