2.1k citations · 8.6k across the 93 of their papers we have counts for
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The classical two-dimensional Heisenberg model revisited: An -symmetric tensor network study
Philipp Schmoll, Augustine Kshetrimayum, Jens Eisert +2
The classical Heisenberg model in two spatial dimensions constitutes one of the most paradigmatic spin models, taking an important role in statistical and condensed matter physics…
Breakdown of a perturbed Z_N topological phase
M. D. Schulz, S. Dusuel, R. Orus +2
We study the robustness of a generalized Kitaev's toric code with Z_N degrees of freedom in the presence of local perturbations. For N=2, this model reduces to the conventional tor…
Robustness of a perturbed topological phase
S. Dusuel, M. Kamfor, R. Orus +2
We investigate the stability of the topological phase of the toric code model in the presence of a uniform magnetic field by means of variational and high-order series expansion ap…
Finite-Size Geometric Entanglement from Tensor Network Algorithms
Qian-Qian Shi, Roman Orus, John Ove Fjaerestad +1
The global geometric entanglement is studied in the context of newly-developed tensor network algorithms for finite systems. For one-dimensional quantum spin systems it is found th…
The iTEBD algorithm beyond unitary evolution
Roman Orus, Guifre Vidal
The infinite time-evolving block decimation (iTEBD) algorithm [Phys. Rev. Lett. 98, 070201 (2007)] allows to simulate unitary evolution and to compute the ground state of one-dimen…
Ground state fidelity from tensor network representations
Huan-Qiang Zhou, Roman Orus, Guifre Vidal
For any D-dimensional quantum lattice system, the fidelity between two ground state many-body wave functions is mapped onto the partition function of a D-dimensional classical stat…