Quantum superposition of molecules beyond 25 kDa

Fein, Yaakov Y.; Geyer, Philipp; Zwick, Patrick; Kiałka, Filip; Pedalino, Sebastian; Mayor, Marcel; Gerlich, Stefan; Arndt, Markus

doi:10.1038/s41567-019-0663-9

Cited by 265 publications

(242 citation statements)

References 36 publications

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“…Matter-wave-assisted deflectometry is a natural extension of this technique, in which one measures the deflection of interference fringes rather than the deflection of an entire beam profile. Modern molecular interferometers [11][12][13] can resolve nanometer-scale fringe shifts, which provides orders of magnitude better resolution than classical beam deflectometry.…”

Section: Introductionmentioning

confidence: 99%

Improved accuracy fullerene polarizability measurements in a long-baseline matter-wave interferometer

Fein

Geyer

Kiałka

et al. 2019

Phys. Rev. Research

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We present electric deflection results for the fullerenes C 60 and C 70 obtained with a long-baseline matterwave interferometer. The second grating of the interferometer is interchangeable between a material grating for fast atom beams and an optical phase grating for polarizable molecules. This allows us to use cesium as a calibration particle and thus measure molecular susceptibilities with improved systematic uncertainty. The static polarizabilities of C 60 and C 70 are measured as 4πε 0 × 87.4 ± 0.4 ± 2.5 Å 3 and 4πε 0 × 106.4 ± 0.2 ± 1.1 Å 3 , respectively, in excellent agreement with previous deflection experiments, but with improved uncertainties.

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Section: Introductionmentioning

confidence: 99%

Improved accuracy fullerene polarizability measurements in a long-baseline matter-wave interferometer

Fein

Geyer

Kiałka

et al. 2019

Phys. Rev. Research

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“…We detect this by scanning G 3 transversely across the molecular beam and counting the transmitted molecules in a quadrupole mass spectrometer. Recent experiments have shown that even molecules in excess of 25 000 amu exhibit interference in this setup 30 …”

Section: Quantum Interference and Electric Susceptibilitymentioning

confidence: 99%

Matter–wave interference and deflection of tripeptides decorated with fluorinated alkyl chains

et al. 2020

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Studies of neutral biomolecules in the gas phase allow for the study of molecular properties in the absence of solvent and charge effects, thus complementing spectroscopic and analytical methods in solution or in ion traps. Some properties, such as the static electronic susceptibility, are best accessed in experiments that act on the motion of the neutral molecules in an electric field. Here, we screen seven peptides for their thermal stability and electron impact ionizability. We identify two tripeptides

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“…Talbot-Lau interferometers [3,[25][26][27][28][29][30][31] require at least two gratings. The first grating, G 1 , prepares transverse coherence in the beam, while G 2 acts as the diffraction element.…”

Section: Theorymentioning

confidence: 99%

“…Increasing the interrogation time in matter-wave interferometers is desirable for a range of applications, including the demonstration of macroscopic superpositions [1][2][3], inertial sensing [4][5][6][7], weak equivalence principle tests [8], and precision measurements of the fine-structure constant [9] and the gravitational constant [10]. Long interaction times can be achieved via particle slowing or trapping [11], moving to a free-fall environment [12][13][14], or increasing the interferometer baseline [3].…”

Section: Introductionmentioning

confidence: 99%

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Coriolis compensation via gravity in a matter-wave interferometer

et al. 2020

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Matter-wave interferometry offers insights into fundamental physics and provides a precise tool for sensing. Improving the sensitivity of such experiments requires increasing the time particles spend in the interferometer, which can lead to dephasing in the presence of velocity-dependent phase shifts such as those produced by the Earth's rotation. Here we present a technique to passively compensate for the Coriolis effect using gravity, without the need for any moving components. We demonstrate the technique with fullerenes in a long-baseline molecule interferometer by measuring the gravitational and Coriolis phase shifts and obtaining the maximum visibility one would expect in the absence of the Coriolis effect.

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Quantum superposition of molecules beyond 25 kDa

Cited by 265 publications

References 36 publications

Improved accuracy fullerene polarizability measurements in a long-baseline matter-wave interferometer

Improved accuracy fullerene polarizability measurements in a long-baseline matter-wave interferometer

Matter–wave interference and deflection of tripeptides decorated with fluorinated alkyl chains

Coriolis compensation via gravity in a matter-wave interferometer

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