Magnetochiral eigenstate of the Heisenberg chain with spontaneous symmetry breaking
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909953141243904 |
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| author | Sedrakyan, Tigran A. Pang, Junjun Wei, Chenan Wang, Baigeng |
| author_facet | Sedrakyan, Tigran A. Pang, Junjun Wei, Chenan Wang, Baigeng |
| contents | We propose a protocol to construct atypical high-energy eigenstates in quantum systems by using ground states of Hamiltonians deformed by conserved charges. For the spin-1/2 Heisenberg XXX chain we study a chiral Hamiltonian built from the scalar-chirality charge and total magnetization and solve it exactly by Bethe ansatz. Its ground state is a magnetized, current-carrying XXX eigenstate that breaks SU(2), time-reversal, and parity yet stays critical. This zero-entropy macrostate shows ballistic spin and chirality transport and admits realistic cold-atom and Rydberg platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_09107 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetochiral eigenstate of the Heisenberg chain with spontaneous symmetry breaking Sedrakyan, Tigran A. Pang, Junjun Wei, Chenan Wang, Baigeng Strongly Correlated Electrons Statistical Mechanics High Energy Physics - Theory We propose a protocol to construct atypical high-energy eigenstates in quantum systems by using ground states of Hamiltonians deformed by conserved charges. For the spin-1/2 Heisenberg XXX chain we study a chiral Hamiltonian built from the scalar-chirality charge and total magnetization and solve it exactly by Bethe ansatz. Its ground state is a magnetized, current-carrying XXX eigenstate that breaks SU(2), time-reversal, and parity yet stays critical. This zero-entropy macrostate shows ballistic spin and chirality transport and admits realistic cold-atom and Rydberg platforms. |
| title | Magnetochiral eigenstate of the Heisenberg chain with spontaneous symmetry breaking |
| topic | Strongly Correlated Electrons Statistical Mechanics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2512.09107 |