A continued fraction based approach for the Two-photon Quantum Rabi Model

Anna Napoli, Antonino Messina, Anna Napoli, Enrique Solano, Elena Lupo, Íñigo L. Egusquiza, Antonino Messina, Elena Lupo

Risultato della ricerca: Articlepeer review

12 Citazioni (Scopus)


We study the Two Photon Quantum Rabi Model by way of its spectral functions and survival probabilities. This approach allows numerical precision with large truncation numbers, and thus exploration of the spectral collapse. We provide independent checks and calibration of the numerical results by studying an exactly solvable case and comparing the essential qualitative structure of the spectral functions. We stress that the large time limit of the survival probability provides us with an indicator of spectral collapse, and propose a technique for the detection of this signal in the current and upcoming quantum simulations of the model.
Lingua originaleEnglish
pagine (da-a)4156-1-4156-12
Numero di pagine12
RivistaScientific Reports
Stato di pubblicazionePublished - 2019

All Science Journal Classification (ASJC) codes

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