Zobrazeno 1 - 10
of 841
pro vyhledávání: '"White, Steven P."'
In the simulation of ground states of strongly-correlated quantum systems, the decomposition of an approximate solution into the exact eigenstates of the Hamiltonian -- the energy spectrum of the state -- determines crucial aspects of the simulation'
Externí odkaz:
http://arxiv.org/abs/2408.13616
Autor:
Moutonnet, Nina, White, Steven, Campbell, Benjamin P, Sanei, Saeid, Tanaka, Toshihisa, Ji, Hong, Mandic, Danilo, Scott, Gregory
Machine learning algorithms for seizure detection have shown considerable diagnostic potential, with recent reported accuracies reaching 100%. Yet, only few published algorithms have fully addressed the requirements for successful clinical translatio
Externí odkaz:
http://arxiv.org/abs/2404.15332
Autor:
White, Steven R., Lindsey, Michael J.
We introduce nested gausslet (NG) bases, an improvement on previous gausslet bases which can treat systems containing atoms with much larger atomic number. We also introduce pure Gaussian distorted gausslet bases, which allow the Hamiltonian integral
Externí odkaz:
http://arxiv.org/abs/2309.10704
Autor:
Lin, Lambert, White, Steven R
We introduce a novel extrapolation algorithm inspired by quantum mechanics and evaluate its performance against linear prediction. Our method involves mapping function values onto a quantum state and estimating future function values by minimizing en
Externí odkaz:
http://arxiv.org/abs/2308.09001
Publikováno v:
Phys. Rev. Lett. 131, 150401 (2023)
Using a recently developed extension of the time-dependent variational principle for matrix product states, we evaluate the dynamics of 2D power-law interacting XXZ models, implementable in a variety of state-of-the-art experimental platforms. We com
Externí odkaz:
http://arxiv.org/abs/2305.17242
Publikováno v:
Phys. Rev. B 108, L180406 (2023)
Using large-scale density-matrix renormalzation group calculations and minimally augmented spin-wave theory, we demonstrate that the phase diagram of the quantum $S\!=\!\frac12$ $J_1$--$J_3$ ferro-antiferromagnetic model on the honeycomb lattice diff
Externí odkaz:
http://arxiv.org/abs/2304.06062
Publikováno v:
Science 384, adh7691 (2024)
Combining the complementary capabilities of two of the most powerful modern computational methods, we find superconductivity in both the electron- and hole-doped regimes of the two-dimensional Hubbard model (with next nearest neighbor hopping). In th
Externí odkaz:
http://arxiv.org/abs/2303.08376
Publikováno v:
Phys. Rev. B 108, L161111 (2023)
Typical Wannier-function downfolding starts with a mean-field or density functional set of bands to construct the Wannier functions. Here we carry out a controlled approach, using DMRG-computed natural orbital bands, to downfold the three-band Hubbar
Externí odkaz:
http://arxiv.org/abs/2303.00756
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
The continued development of novel many-body approaches to ground-state problems in physics and chemistry calls for a consistent way to assess its overall progress. Here we introduce a metric of variational accuracy, the V-score, obtained from the va
Externí odkaz:
http://arxiv.org/abs/2302.04919
Publikováno v:
PRX Quantum 4, 040318 (2023)
The Quantum Fourier Transform (QFT) is a key component of many important quantum algorithms, most famously as being the essential ingredient in Shor's algorithm for factoring products of primes. Given its remarkable capability, one would think it can
Externí odkaz:
http://arxiv.org/abs/2210.08468