Weak measurement based feedback control of atomic ensembles (Orale)
| hal.structure.identifier | lp2n-02,lp2n-11 | |
| dc.contributor.author | BERTOLDI, Andrea | |
| hal.structure.identifier | Systèmes de Référence Temps Espace [SYRTE] | |
| hal.structure.identifier | Laboratoire Charles Fabry / Optique atomique | |
| dc.contributor.author | KOHLHAAS, Ralf | |
| hal.structure.identifier | lp2n-02,lp2n-11 | |
| dc.contributor.author | CANTIN, Etienne | |
| hal.structure.identifier | Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace [LNE - SYRTE] | |
| dc.contributor.author | LANDRAGIN, Arnaud | |
| hal.structure.identifier | Laboratoire Charles Fabry / Optique atomique | |
| dc.contributor.author | BOUYER, Philippe | |
| dc.date.accessioned | 2023-05-12T10:19:24Z | |
| dc.date.available | 2023-05-12T10:19:24Z | |
| dc.date.created | 2013-09-25 | |
| dc.date.conference | 2013-09-23 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/181036 | |
| dc.description.abstractEn | Atom interferometry based sensors provide today the most precise measurements of time, inertial forces and magnetic fields. In the common approach, a superposition state is interrogated for a given time interval and finally destructively measured. Conversely, we can repeatedly probe non-destructively the same quantum system and demonstrate efficient measurement schemes using feedback. First, we protect a spin polarized atomic ensemble from the decoherence induced by a synthetic noise. After the noise action, the state of the atomic system is read out with negligible projection using a non-destructive probe, and later corrected with a coherent manipulation to restore the initial state. The efficiency of the feedback scheme is studied versus the strength of the measurement and a maximum is found from the trade-off between information gain and probe destructivity. Our feedback controller is then applied to stabilize a classical local oscillator on a collective quantum state, and this is used in an atomic clock configuration to demonstrate experimentally that in some contexts a hybrid phase and frequency lock can surpass conventional atomic clocks which rely only on a frequency lock. | |
| dc.language.iso | en | |
| dc.title.en | Weak measurement based feedback control of atomic ensembles (Orale) | |
| dc.type | Communication dans un congrès avec actes | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Physique Atomique [physics.atom-ph] | |
| bordeaux.hal.laboratories | Laboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | CNRS | |
| bordeaux.country | FR | |
| bordeaux.title.proceeding | QMAP 2013 3rd workshop of the Sino-French Research Network on "Quantum Manipulation of Atoms and Photons" (GDRI QMAP) | |
| bordeaux.conference.city | Palaiseau | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00995340 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00995340v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=BERTOLDI,%20Andrea&KOHLHAAS,%20Ralf&CANTIN,%20Etienne&LANDRAGIN,%20Arnaud&BOUYER,%20Philippe&rft.genre=proceeding |
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