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X-ORIGINAL-URL:https://cmc.deusto.eus/
X-WR-CALNAME:cmc.deusto.eus
X-WR-CALDESC:DeustoCCM - Chair of Computational Mathematics at University of Deusto
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UID:MEC-2b5e380885d2d4fdc2c9e4e3ccb902b5@cmc.deusto.eus
DTSTART:20261013T133000Z
DTEND:20261013T143000Z
DTSTAMP:20260930T100300Z
CREATED:20260930
LAST-MODIFIED:20260930
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:DeustoCCM Seminar: Energy spectra for Light-Matter Interactions
DESCRIPTION:Date: Tue. October 13, 2026 (15:30H)\nEvent: DeustoCCM Seminar\nGeneral Colloquium / Research-Oriented\nTitle: Energy spectra for Light-Matter Interactions\nSpeaker: Prof. Masato Wakayama\nAffiliation: NTT Institute for Fundamental Mathematics | ZEN University | Kyushu University\nVisiting Scientist at DeustoCCM, Chair of Computational Mathematics. University of Deusto\nAbstract. The quantum Rabi model (QRM) describes one of the most fundamental models used in quantum optics. Interaction models discussed in this talk are the asymmetric QRM (AQRM), the two-photon quantum Rabi model (2pQRM) and the non-commutative harmonic oscillator (NCHO), which is equivalent to the 2pQRM in terms of its eigenvalue problem. The AQRM is a theoretical model— predicting experimental measurements—that serves as a model for the fundamental elements of superconducting quantum computers. Furthermore, when their eigenvalue problems are formulated using Heun ODEs, NCHO/2pQRM can be regarded as a covering model of QRM from the perspective of the confluence of regular singularities. The talk discusses the derivation and geometric interpretation of an analytical formula for the heat kernel of the (A)QRM—utilizing the Trotter-Kato product formula, which is sometimes mathematically regarded as a Feynman path integral—as well as conjectures on energy degeneracy to hidden symmetries not apparent in the Hamiltonian of AQRM (and 2pAQRM) and a mysterious approximation to the spectral curves closely related to the degeneracy.\nWHERE\nOnsite / Online\nOnsite: University of Deusto, DeustoTech.\nRoom: Logistar.\nUnibertsitate Etorb., 24, 48007 Bilbao, Bizkaia\nOnline: (gMeet): http://meet.google.com/nez-yvqa-ovm\n
URL:https://cmc.deusto.eus/events-calendar/deustoccm-seminar-13oct2026/
ORGANIZER;CN=DeustoCCM - Chair of Computational Mathematics:MAILTO:
CATEGORIES:Seminar/Talk
ATTACH;FMTTYPE=image/png:https://cmc.deusto.eus/wp-content/uploads/DeustoCCMseminar_mWakayama_13oct2026_img.png
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