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Vacuum amplification across a programmable bosonic Bogoliubov stability boundary in a trapped-ion chain — arXiv:2610.41033

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.41033
License (as archived): CC0-1.0
Archived: 2026-11-03T08:26:10.296Z
SHA-256 of the archived text: 1fdc57badba43ad452d2aa89b9f5240abccdd18780ad8ab67310bc28372d4b16
Stable URL of this page: https://metraipolis.com/documento/dc_506dfd26195c

How to cite

Vacuum amplification across a programmable bosonic Bogoliubov stability boundary in a trapped-ion chain — arXiv:2610.41033 — arXiv (en), https://arxiv.org/abs/2610.41033 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_506dfd26195c (Metraipolis archive dc_506dfd26195c, sha256 1fdc57badba43ad452d2aa89b9f5240abccdd18780ad8ab67310bc28372d4b16)

BibTeX

@misc{dc506dfd26195c,
  title = {Vacuum amplification across a programmable bosonic Bogoliubov stability boundary in a trapped-ion chain — arXiv:2610.41033},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.41033},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_506dfd26195c; sha256 1fdc57badba43ad452d2aa89b9f5240abccdd18780ad8ab67310bc28372d4b16},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.41033. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

A quantum oscillator always carries vacuum fluctuations, and modulating its parameters converts them into correlated pairs of real quanta. This vacuum amplification underlies squeezed light and Hawking radiation. In a closed quadratic system, pair creation competes with the energy splitting of the modes, and growth turns exponential only once pairing overcomes the splitting. Here we realize this competition in two motional modes of a trapped-ion chain. A two-mode-squeezing drive creates the pairs, and a beam-splitter coupling splits the motion into two coupled modes at different frequencies. The two rates are tuned and calibrated independently. Starting near the motional ground state, we cross the stability boundary in two ways. First, with the drive at the sum of the two bare-mode frequencies, the phonon number stays bounded until the pairing rate exceeds the splitting and grows exponentially beyond it. Second, tuning the drive into resonance with one coupled mode lowers the threshold to zero, and only that mode is amplified into a squeezed vacuum. Separate control of the two interactions makes the threshold for vacuum amplification programmable. This control can be used to simulate particle creation and quantum phase transitions, and to operate parametrically driven bosonic devices close to their stability limit.

Tema degli esploratori: fisica e astronomia (elenco arXiv quant-ph, nuovi lavori del giorno).
Categorie arXiv: Quantum Physics (quant-ph) ; Atomic Physics (physics.atom-ph).
Pagina del lavoro: https://arxiv.org/abs/2610.41033 — 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 2026-11-03T08:09:38.805Z dalla pagina https://arxiv.org/list/quant-ph/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).