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Robust Hamiltonian engineering with subensemble control — arXiv:2609.03045

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.03045
License (as archived): CC0-1.0
Archived: 2026-10-17T03:03:15.203Z
SHA-256 of the archived text: a26ad6713b2c18c6d99daea5d2f30e44d15017e878b9598eeda6989bb38e1aa1
Stable URL of this page: https://metraipolis.com/documento/dc_7cd91073e700

How to cite

Robust Hamiltonian engineering with subensemble control — arXiv:2609.03045 — arXiv (en), https://arxiv.org/abs/2609.03045 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_7cd91073e700 (Metraipolis archive dc_7cd91073e700, sha256 a26ad6713b2c18c6d99daea5d2f30e44d15017e878b9598eeda6989bb38e1aa1)

BibTeX

@misc{dc7cd91073e700,
  title = {Robust Hamiltonian engineering with subensemble control — arXiv:2609.03045},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.03045},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_7cd91073e700; sha256 a26ad6713b2c18c6d99daea5d2f30e44d15017e878b9598eeda6989bb38e1aa1},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.03045. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

We present a robust protocol to reshape interactions in a spin ensemble based on global control pulse sequences applied to multiple subensembles in parallel. This setting arises naturally from ensembles of solid-state defects or multi-species atomic arrays. We show that it is provably computationally hard to find pulse sequences that simultaneously engineer interactions both within and between subensembles. Despite its formal hardness, we identify a set of necessary or sufficient conditions under which one can synthesize a target Hamiltonian from the native one. Moreover, we introduce efficient numerical strategies for designing pulse sequences that engineer target Hamiltonians robust against common control imperfections. As a specific application, we discuss the robust generation of two-mode spin squeezing in dual-species atomic ensembles, which is a challenging task without subensemble control. Our results provide a practical toolbox to design novel quantum simulation and sensing experiments with minimal control overhead.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-09-04 in quant-ph).
Categorie arXiv: Quantum Physics (quant-ph) ; Quantum Gases (cond-mat.quant-gas).
Pagina del lavoro: https://arxiv.org/abs/2609.03045 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-17T02:49:19.469Z dalla pagina https://arxiv.org/catchup/quant-ph/2026-09-04?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).