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Conference Papers Year : 2024

Explicit formulas for adiabatic elimination with fast unitary dynamics

Abstract

The so-called ``adiabatic elimination'' of fast decaying degrees of freedom in open quantum systems can be performed with a series expansion in the timescale separation. The associated computations are significantly more difficult when the remaining degrees of freedom (center manifold) follow fast unitary dynamics instead of just being slow. This paper highlights how a formulation with Sylvester's equation and with adjoint dynamics leads to systematic, explicit expressions at high orders for settings of physical interest.
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hal-04530303 , version 1 (03-04-2024)

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Angela Riva, Alain Sarlette, Pierre Rouchon. Explicit formulas for adiabatic elimination with fast unitary dynamics. CDC 2024 - IEEE Conference on Decision and Control, IEEE-CSS, Dec 2024, Milan, Italy. ⟨hal-04530303⟩
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