Zobrazeno 1 - 10
of 1 847
pro vyhledávání: '"A, Läuchli"'
Autor:
Maceira, Ivo A., Läuchli, Andreas M.
Using a Krylov-subspace time evolution algorithm, we simulate the real-time dynamics of non-integrable finite spin rings to quite long times with high accuracy. We systematically study the finite-size deviation between the resulting equilibrium state
Externí odkaz:
http://arxiv.org/abs/2409.18863
Autor:
Wehinger, B., Lisandrini, F. T., Kestin, N., Bouillot, P., Ward, S., Biner, D., Bewley, R., Krämer, K. W., Normand, B., Kollath, C., Giamarchi, T., Läuchli, A. M., Rüegg, Ch.
Supersymmetry is an algebraic property of a class of quantum Hamiltonians, a guiding principle used in the development of nuclear theory and a concept that may underpin physics beyond the Standard Model. In condensed matter, any symmetry between boso
Externí odkaz:
http://arxiv.org/abs/2408.12626
Motivated by recent experiments on correlated van der Waals materials, including twisted and rhombohedral graphene and twisted WSe$_2$, we perform an analytical and numerical study of the effects of strong on-site and short-range interactions in frac
Externí odkaz:
http://arxiv.org/abs/2406.09505
Rapid advances in quantum computing technology lead to an increasing need for software simulators that enable both algorithm design and the validation of results obtained from quantum hardware. This includes calculations that aim at probing regimes o
Externí odkaz:
http://arxiv.org/abs/2401.09076
Autor:
Xie, Tao, Gozel, S., Xing, Jie, Zhao, Nan, Avdoshenko, S. M., Wu, Liusuo, Sefat, Athena S., Chernyshev, A. L., Läuchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
Physical Review Letters 133, 096703 (2024)
The extraordinary properties of the Kitaev model have motivated an intense search for new physics in materials that combine geometrical and bond frustration. In this work, we employ inelastic neutron scattering, spin wave theory, and exact diagonaliz
Externí odkaz:
http://arxiv.org/abs/2311.13146
Autor:
Xie, Tao, Zhao, Nan, Gozel, S., Xing, Jie, Avdoshenko, S. M., Taddei, K. M., Kolesnikov, A. I., Ma, Peiyue, Harrison, N., Cruz, C. dela, Wu, Liusuo, Sefat, Athena S., Chernyshev, A. L., Läuchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
Physical Review B 110, 054445 (2024)
The two-dimensional triangular-lattice antiferromagnet (TLAF) is a textbook example of frustrated magnetic systems. Despite its simplicity, the TLAF model exhibits a highly rich and complex magnetic phase diagram, featuring numerous distinct ground s
Externí odkaz:
http://arxiv.org/abs/2311.13143
Publikováno v:
Phys. Rev. B 110, 165124 (2024)
We study a model of spinless fermions on the honeycomb lattice with nearest-neighbor exclusion and extended repulsive interactions that exhibits `lattice supersymmetry' [P. Fendley, K. Schoutens, and J. de Boer, Phys. Rev. Lett. 90, 120402 (2003)]. U
Externí odkaz:
http://arxiv.org/abs/2307.13031
Autor:
Huang, Rui-Zhen, Zhang, Long, Läuchli, Andreas M., Haegeman, Jutho, Verstraete, Frank, Vanderstraeten, Laurens
Publikováno v:
Phys. Rev. Lett. 132, 086503 (2024)
The use of finite entanglement scaling with matrix product states (MPS) has become a crucial tool for studying 1+1d critical lattice theories, especially those with emergent conformal symmetry. We argue that finite entanglement introduces a relevant
Externí odkaz:
http://arxiv.org/abs/2306.08163
Publikováno v:
Phys. Rev. X 14, 021010 (2024)
Quantum electrodynamics in $2+1$ dimensions (QED$_3$) has been proposed as a critical field theory describing the low-energy effective theory of a putative algebraic Dirac spin liquid or of quantum phase transitions in two-dimensional frustrated magn
Externí odkaz:
http://arxiv.org/abs/2303.01585
Publikováno v:
Phys. Rev. Lett. 131, 226502 (2023)
We provide evidence that the spectrum of the local effective Hamiltonian and the transfer operator in infinite-system matrix product state simulations are identical up to a global rescaling factor, i.e.~the speed of light of the system, when the unde
Externí odkaz:
http://arxiv.org/abs/2303.00663