Search Results - "Astrakhantsev, Nikita"

Generalization properties of neural network approximations to frustrated magnet ground states by Westerhout, Tom, Astrakhantsev, Nikita, Tikhonov, Konstantin S., Katsnelson, Mikhail I., Bagrov, Andrey A.

“…Neural quantum states (NQS) attract a lot of attention due to their potential to serve as a very expressive variational ansatz for quantum many-body systems…”
Get full text

Broken-Symmetry Ground States of the Heisenberg Model on the Pyrochlore Lattice by Astrakhantsev, Nikita, Westerhout, Tom, Tiwari, Apoorv, Choo, Kenny, Chen, Ao, Fischer, Mark H., Carleo, Giuseppe, Neupert, Titus

“…The spin-1/2Heisenberg model on the pyrochlore lattice is an iconic frustrated three-dimensional spin system with a rich phase diagram. Besides hosting several…”
Get full text

Neural network evolution strategy for solving quantum sign structures by Chen, Ao, Choo, Kenny, Astrakhantsev, Nikita, Neupert, Titus

“…Feed-forward neural networks are a novel class of variational wave functions for correlated many-body quantum systems. Here, we propose a specific neural…”
Get full text

Lattice study of QCD at finite chiral density: topology and confinement by Astrakhantsev, Nikita, Braguta, V. V., Kotov, A. Yu, Kuznedelev, D. D., Nikolaev, A. A.

“…In this paper we study the properties of QCD at nonzero chiral density ρ 5 , which is introduced through chiral chemical potential μ 5 . The study is performed…”
Get full text

Phenomenological theory of variational quantum ground-state preparation by Astrakhantsev, Nikita, Mazzola, Guglielmo, Tavernelli, Ivano, Carleo, Giuseppe

“…The variational approach is a cornerstone of computational physics, considering both conventional and quantum computing computational platforms. The…”
Get full text

Time evolution of uniform sequential circuits by Astrakhantsev, Nikita, Lin, Sheng-Hsuan, Pollmann, Frank, Smith, Adam

“…Simulating time evolution of generic quantum many-body systems using classical numerical approaches has an exponentially growing cost either with evolution…”
Get full text

Pinch-points to half-moons and up in the stars: The kagome skymap by Kiese, Dominik, Ferrari, Francesco, Astrakhantsev, Nikita, Niggemann, Nils, Ghosh, Pratyay, Müller, Tobias, Thomale, Ronny, Neupert, Titus, Reuther, Johannes, Gingras, Michel J. P., Trebst, Simon, Iqbal, Yasir

“…Pinch point singularities, associated with flat band magnetic excitations, are tell-tale signatures of Coulomb spin liquids. While their properties in the…”
Get full text

Understanding symmetry breaking in twisted bilayer graphene from cluster constraints by Astrakhantsev, Nikita, Wagner, Glenn, Westerhout, Tom, Neupert, Titus, Fischer, Mark H.

“…Twisted bilayer graphene is an exciting platform for exploring correlated quantum phases, extremely tunable with respect to both the single-particle bands and…”
Get full text

Lattice Study of QCD Properties at the “Govorun” Supercomputer by Astrakhantsev, Nikita, Braguta, Victor, Kotov, Andrey, Nikolaev, Alexander

“…This report is devoted to Lattice QCD simulations carried out at the “Govorun” supercomputer. The basics of Lattice QCD methodology, the main Lattice QCD…”
Get full text

ATR4S: toolkit with state-of-the-art automatic terms recognition methods in Scala by Astrakhantsev, Nikita

“…Automatically recognized terminology is widely used for various domain-specific texts processing tasks, such as machine translation, information retrieval or…”
Get full text

Texterra: A Framework for Text Analysis by Turdakov, Denis, Astrakhantsev, Nikita, Nedumov, Yaroslav, Sysoev, Andrey, Andrianov, Ivan, Mayorov, Vladimir, Fedorenko, Denis, Korshunov, Anton, Kuznetsov, Sergey

“…The paper presents a framework for fast text analytics developed during the Texterra project. Texterra delivers a scalable solution for text processing based…”
Get full text

Extracting Objects and Their Attributes from Tables in Text Documents by Nikita Astrakhantsev

“…Extracting information from tables is an important and rather complex part of information retrieval. For the task of objects extraction from HTML tables we…”
Get full text

Stable and semi-stable sampling approaches for continuously used samples by Astrakhantsev, Nikita, Chittajallu, Deepak Roy, Kaushal, Nabeel, Mokeev, Vladislav

“…Knowledge and information systems are usually measured by labeling the relevance of results corresponding to a sample of user queries. In practical systems…”
Get full text

Variational benchmarks for quantum many-body problems by 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, Robledo Moreno, Javier, 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 computational approaches to many-body ground-state problems in physics and chemistry calls for a consistent way to assess its…”
Get full text

Lattice study of electromagnetic conductivity of quark-gluon plasma in external magnetic field by Astrakhantsev, Nikita Yu, Braguta, Victor V, D'Elia, Massimo, Kotov, Andrey Yu, Nikolaev, Aleksandr A, Sanfilippo, Francesco

“…Phys. Rev. D 102, 054516 (2020) We study the electromagnetic (e.m.) conductivity of QGP in a magnetic background by lattice simulations with $N_f = 2+1$…”
Get full text

Detection of demographic attributes of microblog users by Anton Korshunov, Ivan Beloborodov, Andrey Gomzin, Christina Chuprina, Nikita Astrakhantsev, Yaroslav Nedumod, Denis Turdakov

“…Users of internet services often make errors or intentionally provide misleading information about their demographic attributes, including gender, age, marital…”
Get full text

Challenges of variational quantum optimization with measurement shot noise by Scriva, Giuseppe, Astrakhantsev, Nikita, Pilati, Sebastiano, Mazzola, Guglielmo

“…Phys. Rev. A 109, 032408 (2024) Quantum enhanced optimization of classical cost functions is a central theme of quantum computing due to its high potential…”
Get full text

Phenomenological Theory of Variational Quantum Ground-State Preparation by Astrakhantsev, Nikita, Mazzola, Guglielmo, Tavernelli, Ivano, Carleo, Giuseppe

“…The variational approach is a cornerstone of computational physics, considering both conventional and quantum computing computational platforms. The…”
Get full text

Stable and Semi-stable Sampling Approaches for Continuously Used Samples by Astrakhantsev, Nikita, Chittajallu, Deepak, Kaushal, Nabeel, Mokeev, Vladislav

“…Information retrieval systems are usually measured by labeling the relevance of results corresponding to a sample of user queries. In practical search engines,…”
Get full text

Time Evolution of Uniform Sequential Circuits by Astrakhantsev, Nikita, Lin, Sheng-Hsuan, Pollmann, Frank, Smith, Adam

“…Phys. Rev. Research 5, 033187 (2023) Simulating time evolution of generic quantum many-body systems using classical numerical approaches has an exponentially…”
Get full text