Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics

Mittaustekniikan kehityksen myötä on ilmennyt, että tänä päivänä yhä useammin mittatarkkuutta rajoittavat kvanttimekaaniset ilmiöt. Tämä kvanttimekaniikan tuoma raja mittaustarkkuudelle voidaan kuitenkin väistää nokkelalla yhdistelmällä tekniikoita. Tässä pro gradu -tutkielmassa tehtiin pulssitettuj...

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Päätekijä: Männikkö, Milla
Muut tekijät: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Fysiikan laitos, Department of Physics, Jyväskylän yliopisto, University of Jyväskylä
Aineistotyyppi: Pro gradu
Kieli:eng
Julkaistu: 2023
Aiheet:
Linkit: https://jyx.jyu.fi/handle/123456789/91993
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author Männikkö, Milla
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics Jyväskylän yliopisto University of Jyväskylä
author_facet Männikkö, Milla Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics Jyväskylän yliopisto University of Jyväskylä Männikkö, Milla Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics Jyväskylän yliopisto University of Jyväskylä
author_sort Männikkö, Milla
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description Mittaustekniikan kehityksen myötä on ilmennyt, että tänä päivänä yhä useammin mittatarkkuutta rajoittavat kvanttimekaaniset ilmiöt. Tämä kvanttimekaniikan tuoma raja mittaustarkkuudelle voidaan kuitenkin väistää nokkelalla yhdistelmällä tekniikoita. Tässä pro gradu -tutkielmassa tehtiin pulssitettuja optomekaanisia mittaussarjoja fotonikiteiselle nanopalkkiresonaattorille sen paikkakvadratuurin mittamista varten, sillä vain toisen kvadratuurin mittaaminen mahdollistaa kvanttimekaniikan asettaman tarkkuusrajan välttämisen. Resonaattorin paikka mitattiin tarkuudella, joka oli 311 kertainen verrattuna resonaattorin nollapiste-energiassa tapahtuvaan värähtelyyn (xzpf ) verrattuna. As measurement technologies evolve, it becomes apparent that the limitations to measurement precision arise increasingly from the fundamental principles of quantum mechanics. Avoiding these limitations is however possible with a clever combination of techniques. In this thesis interferometric pulsed optomechanical measurement series were done on a nanobeam photonic crystal resonator to measure its position quadrature as measuring only one quadrature at a time allows for dodging the standard quantum limit. Resonator position was measured at an accuracy of 311 times the zero point fluctuation (xzpf ) of the resonator.
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spellingShingle Männikkö, Milla Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics optomechanics Fysiikka Physics 4021 kvantti-informaatio fotoniikka quantum information photonics
title Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics
title_full Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics
title_fullStr Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics
title_full_unstemmed Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics
title_short Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics
title_sort position quadrature measurements of a nanomechanical resonator using pulsed optomechanics
title_txtP Position quadrature measurements of a nanomechanical resonator using pulsed optomechanics
topic optomechanics Fysiikka Physics 4021 kvantti-informaatio fotoniikka quantum information photonics
topic_facet 4021 Fysiikka Physics fotoniikka kvantti-informaatio optomechanics photonics quantum information
url https://jyx.jyu.fi/handle/123456789/91993 http://www.urn.fi/URN:NBN:fi:jyu-202311228008
work_keys_str_mv AT männikkömilla positionquadraturemeasurementsofananomechanicalresonatorusingpulsedoptomechanics