Phonon counting thermometry of an ultracoherent membrane resonator near its motional ground state
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Phonon counting thermometry of an ultracoherent membrane resonator near its motional ground state. / Galinskiy, I.; Tsaturyan, Y.; Parniak, M.; Polzik, E. S.
I: Optica, Bind 7, Nr. 6, 20.06.2020, s. 718-725.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Phonon counting thermometry of an ultracoherent membrane resonator near its motional ground state
AU - Galinskiy, I.
AU - Tsaturyan, Y.
AU - Parniak, M.
AU - Polzik, E. S.
PY - 2020/6/20
Y1 - 2020/6/20
N2 - The generation of non-Gaussian quantum states of macroscopic mechanical objects is key to a number of challenges in quantum information science, ranging from fundamental tests of decoherence to quantum communication and sensing. Heralded generation of single-phonon states of mechanical motion is an attractive way toward this goal, as it is, in principle, not limited by the object size. Here we demonstrate a technique that allows for generation and detection of a quantum state of motion by phonon counting measurements near the ground state of a 1.5 MHz micromechanical oscillator. We detect scattered photons from a membrane-in-the-middle optomechanical system using an ultra-narrowband optical filter, and perform Raman-ratio thermometry and second-order intensity interferometry near the motional ground state ((n) over bar = 0.23 +/- 0.02 phonons). With an effective mass in the nanogram range, our system lends itself for studies of long-lived non-Gaussian motional states with some of the heaviest objects to date. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
AB - The generation of non-Gaussian quantum states of macroscopic mechanical objects is key to a number of challenges in quantum information science, ranging from fundamental tests of decoherence to quantum communication and sensing. Heralded generation of single-phonon states of mechanical motion is an attractive way toward this goal, as it is, in principle, not limited by the object size. Here we demonstrate a technique that allows for generation and detection of a quantum state of motion by phonon counting measurements near the ground state of a 1.5 MHz micromechanical oscillator. We detect scattered photons from a membrane-in-the-middle optomechanical system using an ultra-narrowband optical filter, and perform Raman-ratio thermometry and second-order intensity interferometry near the motional ground state ((n) over bar = 0.23 +/- 0.02 phonons). With an effective mass in the nanogram range, our system lends itself for studies of long-lived non-Gaussian motional states with some of the heaviest objects to date. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
KW - QUANTUM COMMUNICATION
KW - INTERFEROMETRY
KW - GENERATION
KW - MEMORY
KW - CAVITY
U2 - 10.1364/OPTICA.390939
DO - 10.1364/OPTICA.390939
M3 - Journal article
VL - 7
SP - 718
EP - 725
JO - Optica
JF - Optica
SN - 2334-2536
IS - 6
ER -
ID: 245660703