Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Khatami, Ehsan"'
Publikováno v:
Phys. Rev. A 109, 053304 (2024)
The development of quantum gas microscopy for two-dimensional optical lattices has provided an unparalleled tool to study the Fermi-Hubbard model (FHM) with ultracold atoms. Spin-resolved projective measurements, or snapshots, have played a significa
Externí odkaz:
http://arxiv.org/abs/2312.15618
Recent proposals have suggested the use of supervised learning with convolutional neural networks to shed light on some of the less well known phases of the Fermi-Hubbard model through the classification of snapshots from the quantum gas microscopy o
Externí odkaz:
http://arxiv.org/abs/2310.03267
Autor:
Lebrat, Martin, Xu, Muqing, Kendrick, Lev Haldar, Kale, Anant, Gang, Youqi, Seetharaman, Pranav, Morera, Ivan, Khatami, Ehsan, Demler, Eugene, Greiner, Markus
Publikováno v:
Nature 629, 317 (2024)
Quantum interference can deeply alter the nature of many-body phases of matter. In the paradigmatic case of the Hubbard model, Nagaoka famously proved that introducing a single itinerant charge can transform a paramagnetic insulator into a ferromagne
Externí odkaz:
http://arxiv.org/abs/2308.12269
Autor:
Ibarra-García-Padilla, Eduardo, Feng, Chunhan, Pasqualetti, Giulio, Fölling, Simon, Scalettar, Richard T., Khatami, Ehsan, Hazzard, Kaden R. A.
Publikováno v:
Phys. Rev. A 108, 053312 (2023)
We study the SU(3) symmetric Fermi-Hubbard model (FHM) in the square lattice at $1/3$-filling using numerically exact determinant quantum Monte Carlo (DQMC) and numerical linked-cluster expansion (NLCE) techniques. We present the different regimes of
Externí odkaz:
http://arxiv.org/abs/2306.10644
Autor:
Xiao, Bo, Moreno, Javier Robledo, Fishman, Matthew, Sels, Dries, Khatami, Ehsan, Scalettar, Richard
Publikováno v:
Phys. Rev. Research 6, L022064 (2024)
Quantum gas microscopy has developed into a powerful tool to explore strongly correlated quantum systems. However, discerning phases with topological or off-diagonal long range order requires the ability to extract these correlations from site-resolv
Externí odkaz:
http://arxiv.org/abs/2209.10565
Publikováno v:
Journal of Theoretical and Computational Acoustics 30, 2240005 (2022)
Acoustic metamaterials are engineered microstructures with special mechanical and acoustic properties enabling exotic effects such as wave steering, focusing and cloaking. The design of acoustic cloaks using scattering cancellation has traditionally
Externí odkaz:
http://arxiv.org/abs/2111.01230
Autor:
Wang, Xiqiao, Khatami, Ehsan, Fei, Fan, Wyrick, Jonathan, Namboodiri, Pradeep, Kashid, Ranjit, Rigosi, Albert F., Bryant, Garnett, Silver, Richard
The Hubbard model is one of the primary models for understanding the essential many-body physics in condensed matter systems such as Mott insulators and cuprate high-Tc superconductors. Recent advances in atomically precise fabrication in silicon usi
Externí odkaz:
http://arxiv.org/abs/2110.08982
Autor:
Park, Jacob, Khatami, Ehsan
Publikováno v:
Phys. Rev. B 104, 165102 (2021)
The interplay of disorder and strong correlations in quantum many-body systems remains an open question. That is despite much progress made in recent years with ultracold atoms in optical lattices to better understand phenomena such as many-body loca
Externí odkaz:
http://arxiv.org/abs/2101.12721
Autor:
Khatami, Ehsan, Guardado-Sanchez, Elmer, Spar, Benjamin M., Carrasquilla, Juan Felipe, Bakr, Waseem S., Scalettar, Richard T.
Publikováno v:
Phys. Rev. A 102, 033326 (2020)
Strongly correlated phases of matter are often described in terms of straightforward electronic patterns. This has so far been the basis for studying the Fermi-Hubbard model realized with ultracold atoms. Here, we show that artificial intelligence (A
Externí odkaz:
http://arxiv.org/abs/2002.12310
Publikováno v:
Phys. Rev. B 103, 060501 (2021)
The interplay between electron-electron correlations and disorder has been a central theme of condensed matter physics over the last several decades, with particular interest in the possibility that interactions might cause delocalization of an Ander
Externí odkaz:
http://arxiv.org/abs/1910.08703