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PhysRevD.105.014504.pdf | 1.05 MB | Adobe PDF | 見る/開く |
タイトル: | Classically emulated digital quantum simulation for screening and confinement in the Schwinger model with a topological term |
著者: | Honda, Masazumi https://orcid.org/0000-0001-6935-5609 (unconfirmed) Itou, Etsuko Kikuchi, Yuta Nagano, Lento Okuda, Takuya |
著者名の別形: | 本多, 正純 |
キーワード: | Lattice field theory Lattice gauge theory Quantum computation Quantum simulation Particles & Fields |
発行日: | Jan-2022 |
出版者: | American Physical Society (APS) |
誌名: | Physical Review D |
巻: | 105 |
号: | 1 |
論文番号: | 014504 |
抄録: | We perform digital quantum simulation, using a classical simulator, to study screening and confinement in a gauge theory with a topological term, focusing on (1+1)-dimensional quantum electrodynamics (Schwinger model) with a theta term. We compute the ground state energy in the presence of probe charges to estimate the potential between them, via adiabatic state preparation. We compare our simulation results and analytical predictions for a finite volume, finding good agreements. In particular our result in the massive case shows a linear behavior for noninteger charges and a nonlinear behavior for integer charges, consistently with the expected confinement (screening) behavior for noninteger (integer) charges. |
著作権等: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
URI: | http://hdl.handle.net/2433/274803 |
DOI(出版社版): | 10.1103/PhysRevD.105.014504 |
出現コレクション: | 学術雑誌掲載論文等 |
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