Quantum Backaction Evading Measurement of Collective Mechanical Modes

C. F. Ockeloen-Korppi; Erno Damskägg; J. -M. Pirkkalainen; A. A. Clerk; M. J. Woolley; Mika Sillanpää

doi:10.1103/PhysRevLett.117.140401

Quantum Backaction Evading Measurement of Collective Mechanical Modes

C. F. Ockeloen-Korppi, Erno Damskägg, J. -M. Pirkkalainen, A. A. Clerk, M. J. Woolley, Mika Sillanpää

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

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Abstrakti

The standard quantum limit constrains the precision of an oscillator position measurement. It arises from a balance between the imprecision and the quantum backaction of the measurement. However, a measurement of only a single quadrature of the oscillator can evade the backaction and be made with arbitrary precision. Here we demonstrate quantum backaction evading measurements of a collective quadrature of two mechanical oscillators, both coupled to a common microwave cavity. The work allows for quantum state tomography of two mechanical oscillators, and provides a foundation for macroscopic mechanical entanglement and force sensing beyond conventional quantum limits.

Alkuperäiskieli	Englanti
Artikkeli	140401
Sivut	1-6
Sivumäärä	6
Julkaisu	Physical Review Letters
Vuosikerta	117
Numero	14
DOI - pysyväislinkit	https://doi.org/10.1103/PhysRevLett.117.140401
Tila	Julkaistu - 26 syysk. 2016
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1103/PhysRevLett.117.140401

PhysRevLett.117Final published version, 615 KB

Matalien lämpötilojen kvantti-ilmiöiden ja komponenttien huippuyksikkö
Sillanpää, M. (Vastuullinen tutkija)
01/01/2015 → 31/12/2017
Projekti: Academy of Finland: Other research funding
CAVITYQPD: Cavity quantum phonon dynamics
Välimaa, A. (Projektin jäsen), Ockeloen-Korppi, C. (Projektin jäsen), Santos, J. T. (Projektin jäsen), Damskägg, E. (Projektin jäsen), Sillanpää, M. (Vastuullinen tutkija), Rissanen, I. (Projektin jäsen), Kervinen, M. (Projektin jäsen), Brandt, M. (Projektin jäsen), Sulkko, J. (Projektin jäsen), Pirkkalainen, J.-M. (Projektin jäsen), Zhou, J. (Projektin jäsen), Mahato, S. (Projektin jäsen), Mercier de Lepinay, L. (Projektin jäsen), Mishra, H. (Projektin jäsen), Wang, C. (Projektin jäsen), Tong, F. (Projektin jäsen) & Crump, W. (Projektin jäsen)
20/11/2014 → 31/12/2020
Projekti: EU: ERC grants

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title = "Quantum Backaction Evading Measurement of Collective Mechanical Modes",

abstract = "The standard quantum limit constrains the precision of an oscillator position measurement. It arises from a balance between the imprecision and the quantum backaction of the measurement. However, a measurement of only a single quadrature of the oscillator can evade the backaction and be made with arbitrary precision. Here we demonstrate quantum backaction evading measurements of a collective quadrature of two mechanical oscillators, both coupled to a common microwave cavity. The work allows for quantum state tomography of two mechanical oscillators, and provides a foundation for macroscopic mechanical entanglement and force sensing beyond conventional quantum limits.",

keywords = "NANOMECHANICAL MOTION, CAVITY OPTOMECHANICS, NOISE, OSCILLATOR, SCHEME, STATE, LIMIT",

author = "Ockeloen-Korppi, {C. F.} and Erno Damsk{\"a}gg and Pirkkalainen, {J. -M.} and Clerk, {A. A.} and Woolley, {M. J.} and Mika Sillanp{\"a}{\"a}",

year = "2016",

month = sep,

day = "26",

doi = "10.1103/PhysRevLett.117.140401",

language = "English",

volume = "117",

pages = "1--6",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "14",

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TY - JOUR

T1 - Quantum Backaction Evading Measurement of Collective Mechanical Modes

AU - Ockeloen-Korppi, C. F.

AU - Damskägg, Erno

AU - Pirkkalainen, J. -M.

AU - Clerk, A. A.

AU - Woolley, M. J.

AU - Sillanpää, Mika

PY - 2016/9/26

Y1 - 2016/9/26

N2 - The standard quantum limit constrains the precision of an oscillator position measurement. It arises from a balance between the imprecision and the quantum backaction of the measurement. However, a measurement of only a single quadrature of the oscillator can evade the backaction and be made with arbitrary precision. Here we demonstrate quantum backaction evading measurements of a collective quadrature of two mechanical oscillators, both coupled to a common microwave cavity. The work allows for quantum state tomography of two mechanical oscillators, and provides a foundation for macroscopic mechanical entanglement and force sensing beyond conventional quantum limits.

AB - The standard quantum limit constrains the precision of an oscillator position measurement. It arises from a balance between the imprecision and the quantum backaction of the measurement. However, a measurement of only a single quadrature of the oscillator can evade the backaction and be made with arbitrary precision. Here we demonstrate quantum backaction evading measurements of a collective quadrature of two mechanical oscillators, both coupled to a common microwave cavity. The work allows for quantum state tomography of two mechanical oscillators, and provides a foundation for macroscopic mechanical entanglement and force sensing beyond conventional quantum limits.

KW - NANOMECHANICAL MOTION

KW - CAVITY OPTOMECHANICS

KW - NOISE

KW - OSCILLATOR

KW - SCHEME

KW - STATE

KW - LIMIT

U2 - 10.1103/PhysRevLett.117.140401

DO - 10.1103/PhysRevLett.117.140401

M3 - Article

SN - 0031-9007

VL - 117

SP - 1

EP - 6

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 140401

ER -

Quantum Backaction Evading Measurement of Collective Mechanical Modes

Abstrakti

Pääsy asiakirjaan

Sormenjälki

Projektit

Matalien lämpötilojen kvantti-ilmiöiden ja komponenttien huippuyksikkö

CAVITYQPD: Cavity quantum phonon dynamics

Laitteet

OtaNano

OtaNano – Kylmälaboratorio

OtaNano Nanofab

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