Quantum many-body scarring in a non-Abelian lattice gauge theory
Quantum many-body scarring (QMBS) is an intriguing mechanism of weak ergodicity breaking that has recently spurred significant attention. Particularly prominent in Abelian lattice gauge theories (LGTs), an open question is whether QMBS nontrivially arises in non-Abelian LGTs. Here, we present eviden...
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-03-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013322 |
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| author | Giuseppe Calajó Giovanni Cataldi Marco Rigobello Darvin Wanisch Giuseppe Magnifico Pietro Silvi Simone Montangero Jad C. Halimeh |
| author_facet | Giuseppe Calajó Giovanni Cataldi Marco Rigobello Darvin Wanisch Giuseppe Magnifico Pietro Silvi Simone Montangero Jad C. Halimeh |
| author_sort | Giuseppe Calajó |
| collection | DOAJ |
| description | Quantum many-body scarring (QMBS) is an intriguing mechanism of weak ergodicity breaking that has recently spurred significant attention. Particularly prominent in Abelian lattice gauge theories (LGTs), an open question is whether QMBS nontrivially arises in non-Abelian LGTs. Here, we present evidence of robust QMBS in a non-Abelian SU(2) LGT with dynamical matter. Starting in product states that require little experimental overhead, we show that prominent QMBS arises for certain quenches, facilitated through meson and baryon-antibaryon excitations, highlighting its non-Abelian nature. The uncovered scarred dynamics manifests as long-lived coherent oscillations in experimentally accessible local observables as well as prominent revivals in the state fidelity. Our findings bring QMBS to the realm of non-Abelian LGTs, highlighting the intimate connection between scarring and gauge symmetry, and are amenable for observation in a recently proposed trapped-ion qudit quantum computer. |
| format | Article |
| id | doaj-art-1b4e663bc6824ac8a5249a1004018e4f |
| institution | DOAJ |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-1b4e663bc6824ac8a5249a1004018e4f2025-08-20T02:54:04ZengAmerican Physical SocietyPhysical Review Research2643-15642025-03-017101332210.1103/PhysRevResearch.7.013322Quantum many-body scarring in a non-Abelian lattice gauge theoryGiuseppe CalajóGiovanni CataldiMarco RigobelloDarvin WanischGiuseppe MagnificoPietro SilviSimone MontangeroJad C. HalimehQuantum many-body scarring (QMBS) is an intriguing mechanism of weak ergodicity breaking that has recently spurred significant attention. Particularly prominent in Abelian lattice gauge theories (LGTs), an open question is whether QMBS nontrivially arises in non-Abelian LGTs. Here, we present evidence of robust QMBS in a non-Abelian SU(2) LGT with dynamical matter. Starting in product states that require little experimental overhead, we show that prominent QMBS arises for certain quenches, facilitated through meson and baryon-antibaryon excitations, highlighting its non-Abelian nature. The uncovered scarred dynamics manifests as long-lived coherent oscillations in experimentally accessible local observables as well as prominent revivals in the state fidelity. Our findings bring QMBS to the realm of non-Abelian LGTs, highlighting the intimate connection between scarring and gauge symmetry, and are amenable for observation in a recently proposed trapped-ion qudit quantum computer.http://doi.org/10.1103/PhysRevResearch.7.013322 |
| spellingShingle | Giuseppe Calajó Giovanni Cataldi Marco Rigobello Darvin Wanisch Giuseppe Magnifico Pietro Silvi Simone Montangero Jad C. Halimeh Quantum many-body scarring in a non-Abelian lattice gauge theory Physical Review Research |
| title | Quantum many-body scarring in a non-Abelian lattice gauge theory |
| title_full | Quantum many-body scarring in a non-Abelian lattice gauge theory |
| title_fullStr | Quantum many-body scarring in a non-Abelian lattice gauge theory |
| title_full_unstemmed | Quantum many-body scarring in a non-Abelian lattice gauge theory |
| title_short | Quantum many-body scarring in a non-Abelian lattice gauge theory |
| title_sort | quantum many body scarring in a non abelian lattice gauge theory |
| url | http://doi.org/10.1103/PhysRevResearch.7.013322 |
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