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Preparation of Multimode NOON States via Floquet-Engineered Conditional Chiral Excitation — arXiv:2609.14524

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.14524
License (as archived): CC0-1.0
Archived: 2026-10-16T02:24:24.362Z
SHA-256 of the archived text: 834b82b395d672494a51bd19ef9e3b06c437b3c4dbbbb172b3e0d3d79f87f73c
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How to cite

Preparation of Multimode NOON States via Floquet-Engineered Conditional Chiral Excitation — arXiv:2609.14524 — arXiv (en), https://arxiv.org/abs/2609.14524 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_a4dda641bd32 (Metraipolis archive dc_a4dda641bd32, sha256 834b82b395d672494a51bd19ef9e3b06c437b3c4dbbbb172b3e0d3d79f87f73c)

BibTeX

@misc{dca4dda641bd32,
  title = {Preparation of Multimode NOON States via Floquet-Engineered Conditional Chiral Excitation — arXiv:2609.14524},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.14524},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_a4dda641bd32; sha256 834b82b395d672494a51bd19ef9e3b06c437b3c4dbbbb172b3e0d3d79f87f73c},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.14524. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The NOON states possess Heisenberg-limited phase sensitivity and are crucial for quantum-enhanced metrology. In our work, we develop a Floquet-engineered conditional-routing framework in which a $d$-level quantum controller mediates the dynamics of $d$ bosonic modes. For an arbitrary odd dimension $d=2s+1$, the $d$-level system can act as a ``quantum knob" by tuning its initial states to coherently control the direction of chiral excitation flow, such that different controller eigenstates generate distinct cyclic-routing branches of the bosonic excitations. By choosing $s$ harmonics, we construct an exact qudit-controlled cyclic permutation and use it to formulate a general protocol for preparing odd-$d$-mode NOON states. The same framework also enables programmable complex amplitudes through appropriate preparation of the controller state. As concrete realizations, we show that the three-mode case requires only a single harmonic and exhibits two oppositely directed chiral branches together with a stationary branch, whereas the five-mode case requires two harmonics and both nearest- and next-nearest-neighbor chiral hoppings. Meanwhile, taking the three-mode realization as a representative example, we assess the influence of systematic imperfections and dissipation on the conditional-routing dynamics and identify parameter regimes in which the routing operation remains accurate. Our results establish a systematic Floquet construction for controllable chiral routing and multimode NOON-state generation in arbitrary odd-dimensional networks, with potential applications in quantum information processing and quantum metrology.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-09-15 in quant-ph).
Categorie arXiv: Quantum Physics (quant-ph).
Pagina del lavoro: https://arxiv.org/abs/2609.14524 — 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 2026-10-16T01:57:57.030Z dalla pagina https://arxiv.org/catchup/quant-ph/2026-09-15?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).