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Conference papers

Quantum adiabatic elimination at arbitrary order for photon number measurement

Alain Sarlette 1 Pierre Rouchon 2, 1 Antoine Essig 3 Quentin Ficheux 3 Benjamin Huard 3
1 QUANTIC - QUANTum Information Circuits
ENS Paris - École normale supérieure - Paris, MINES ParisTech - École nationale supérieure des mines de Paris, SU - Sorbonne Université, Inria de Paris
Abstract : Adiabatic elimination is a perturbative model reduction technique based on timescale separation and often used to simplify the description of composite quantum systems. We here analyze a quantum experiment where the perturbative expansion can be carried out to arbitrary order, such that: (i) we can formulate in the end an exact reduced model in quantum form; (ii) as the series provides accuracy for ever larger parameter values, we can discard any condition on the timescale separation, thereby analyzing the intermediate regime where the actual experiment is performing best; (iii) we can clarify the role of some gauge degrees of freedom in this model reduction technique.
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Conference papers
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https://hal.inria.fr/hal-03084837
Contributor : Mazyar Mirrahimi <>
Submitted on : Monday, December 21, 2020 - 1:45:19 PM
Last modification on : Tuesday, January 5, 2021 - 2:03:12 PM

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  • HAL Id : hal-03084837, version 1
  • ARXIV : 2001.02550

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Alain Sarlette, Pierre Rouchon, Antoine Essig, Quentin Ficheux, Benjamin Huard. Quantum adiabatic elimination at arbitrary order for photon number measurement. 2020 IFAC World Congress, IFAC, Jul 2020, Berlin, Germany. ⟨hal-03084837⟩

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