Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Laeuchli, Andreas"'
Autor:
Schneider, Jan T., Ueda, Atsushi, Liu, Yifan, Läuchli, Andreas M., Oshikawa, Masaki, Tagliacozzo, Luca
We set up an effective field theory formulation for the renormalization flow of matrix product states (MPS) with finite bond dimension, focusing on systems exhibiting finite-entanglement scaling close to a conformally invariant critical fixed point.
Externí odkaz:
http://arxiv.org/abs/2411.03954
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
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
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
Autor:
Wu, Dian, Rossi, Riccardo, Vicentini, Filippo, Astrakhantsev, Nikita, Becca, Federico, Cao, Xiaodong, Carrasquilla, Juan, Ferrari, Francesco, Georges, Antoine, Hibat-Allah, Mohamed, Imada, Masatoshi, Läuchli, Andreas M., Mazzola, Guglielmo, Mezzacapo, Antonio, Millis, Andrew, Moreno, Javier Robledo, Neupert, Titus, Nomura, Yusuke, Nys, Jannes, Parcollet, Olivier, Pohle, Rico, Romero, Imelda, Schmid, Michael, Silvester, J. Maxwell, Sorella, Sandro, Tocchio, Luca F., Wang, Lei, White, Steven R., Wietek, Alexander, Yang, Qi, Yang, Yiqi, Zhang, Shiwei, Carleo, Giuseppe
Publikováno v:
Science 386, 296-301 (2024)
The continued development of computational approaches to many-body ground-state problems in physics and chemistry calls for a consistent way to assess its overall progress. In this work, we introduce a metric of variational accuracy, the V-score, obt
Externí odkaz:
http://arxiv.org/abs/2302.04919
Autor:
Rakcheev, Artem, Läuchli, Andreas M.
Publikováno v:
Physical Review A 107, 062602 (2023)
Quantum annealing is a contender to solve combinatorial optimization problems based on quantum dynamics. While significant efforts have been undertaken to investigate the quality of the solutions and the required runtimes, much less attention has bee
Externí odkaz:
http://arxiv.org/abs/2212.08634