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SUMMARY:Topical Seminar: Non-adiabatic transitions in the density matrix f
 ormalism
DTSTART;VALUE=DATE-TIME:20261106T110000Z
DTEND;VALUE=DATE-TIME:20261106T123000Z
DTSTAMP;VALUE=DATE-TIME:20261102T014733Z
UID:indico-event-8836@indico.ific.uv.es
DESCRIPTION:Abstract: Non-adiabatic level crossings and quantum state tran
 sitions are fundamental phenomena occurring across a vast array of physica
 l disciplines. In this talk\, I will present a newly derived analytical ex
 pression for transition probability\, for a two-state quantum system\, in 
 the non-adiabatic regime using Density Matrix Formalism (DMF) extending we
 ll beyond the traditional Landau-Zener-Stueckelberg-Majorana (LZSM) approx
 imation. While standard LZSM treatment is restricted when considering comp
 lex time-dependent mixing or environmental interaction\, our DMF framework
  accommodates both time-dependent dynamics and decoherence effects. Becaus
 e of its general formulation\, this framework applies to any two-state qua
 ntum system – offering a powerful analytical tool for particle physics a
 nd cosmology (such as active-sterile neutrino mixing\, dark matter product
 ion and axion-photon mixing)\, as well as atomic physics\, NMR\, and quant
 um information. I will discuss the foundational derivation and illustrate 
 its immediate application to solar neutrino oscillations\, while opening t
 he floor to broader prospective applications.\n\nhttps://indico.ific.uv.es
 /event/8836/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8836/
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