Single-Photon Cooling in Microwave Magnetomechanics

Zoepfl, David; Juan, Mathieu L.; Schneider, C. M. F.; Kirchmair, Gerhard

doi:10.1103/physrevlett.125.023601

Cited by 34 publications

(14 citation statements)

References 40 publications

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“…A natural question is whether the effective model we have studied can be realized with large cooperativity C − 1 also for purely dispersive optomechanical systems. This would make it relevant to a large variety of experimental platforms, some of which have already reached the regime C 0 > 1 [35,[41][42][43][44][45]. In this section, we will present a multimode model which shows that it is indeed possible to realize this.…”

Section: Implementation With Dispersive Optomechanicsmentioning

confidence: 99%

“…Several experiments have in fact reached this regime. Most of them are in the unresolved sideband regime where the cavity decay rate κ is much larger than the mechanical resonance frequency [41][42][43][44][45]. However, a value of C 0 ∼ 8 has been reported for a trampoline membrane-in-the-middle setup where the mechanical resonance frequency and the cavity decay rate were comparable [35].…”

Section: Introductionmentioning

confidence: 99%

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Critical quantum fluctuations and photon antibunching in optomechanical systems with large single-photon cooperativity

Børkje

2020

Phys. Rev. A

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A pertinent question in cavity optomechanics is whether reaching the regime of large single-photon cooperativity, where the single-photon coupling rate exceeds the geometric mean of the cavity and mechanical decay rates, can enable any new phenomena. We show that in some multimode optomechanical systems, the single-photon cooperativity can indeed be a figure of merit. We first study a system with one cavity mode and two mechanical oscillators, which combines the concepts of levitated optomechanics and coherent scattering with standard dispersive optomechanics. Later, we study a more complicated setup involving three cavity modes which does not rely on levitated optomechanics and only features dispersive optomechanical interactions with direct cavity driving. These systems can effectively realize the degenerate or the nondegenerate parametric oscillator models known from quantum optics, but in the unusual finite-size regime for the fundamental mode(s) when the single-photon cooperativity is large. We show that the response of these systems to a coherent optical probe can be highly nonlinear in probe power even for average photon occupation numbers below unity. The nonlinear optomechanical interaction has the peculiar consequence that the probe drive will effectively amplitude-squeeze itself. For large single-photon cooperativity, this occurs for small occupation numbers, which enables observation of nonclassical antibunching of the transmitted probe photons due to a destructive interference effect. Finally, we show that as the probe power is increased even further, the system enters a critical regime characterized by intrinsically nonlinear dynamics and non-Gaussian states.

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Section: Implementation With Dispersive Optomechanicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Critical quantum fluctuations and photon antibunching in optomechanical systems with large single-photon cooperativity

Børkje

2020

Phys. Rev. A

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“…By expanding to larger membranes [100,102] it should be possible to achieve kHz-scale resonant detectors with much larger masses than traditional cantilevers. While optical readout is typical of precision interferometry, electrical readout is poised to make important contributions, both in the context of phonon readout through superconducting qubits [76], but also through advances in magnetic couplings [103]. Detection of the motion of levitated nanospheres is reaching quantum measurement limits [97].…”

Section: Available Mechanical Sensors and Future Challengesmentioning

confidence: 99%

Mechanical quantum sensing in the search for dark matter

Carney

Krnjaic

Moore

et al. 2021

Quantum Sci. Technol.

116

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Numerous astrophysical and cosmological observations are best explained by the existence of dark matter, a mass density which interacts only very weakly with visible, baryonic matter. Searching for the extremely weak signals produced by this dark matter strongly motivate the development of new, ultra-sensitive detector technologies. Paradigmatic advances in the control and readout of massive mechanical systems, in both the classical and quantum regimes, have enabled unprecedented levels of sensitivity. In this white paper, we outline recent ideas in the potential use of a range of solid-state mechanical sensing technologies to aid in the search for dark matter in a number of energy scales and with a variety of coupling mechanisms.

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“…In the microwave domain, OMIT [56][57][58][59][60] and OMIA [61][62][63][64] have been demonstrated in electromechanical devices where a superconducting microwave resonator couples to a mechanical resonator realized as a capacitor [65][66][67]. Integrating electromechanics with solid-state qubits, e.g., superconducting qubits [68][69][70][71][72], leads to a promising hybrid architecture for a quantum repeater [73]. The parametric optomechanical coupling has a great tunability.…”

mentioning

confidence: 99%

Optomechanical Anti-Lasing with Infinite Group Delay at a Phase Singularity

Liu

Wang

et al. 2021

Phys. Rev. Lett.

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Singularities which symbolize abrupt changes and exhibit extraordinary behavior are of a broad interest. We experimentally study optomechanically induced singularities in a compound system consisting of a three-dimensional aluminum superconducting cavity and a metalized high-coherence silicon nitride membrane resonator. Mechanically induced coherent perfect absorption and anti-lasing occur simultaneously under a critical optomechanical coupling strength. Meanwhile, the phase around the cavity resonance undergoes an abrupt π-phase transition, which further flips the phase slope in the frequency dependence. The observed infinite discontinuity in the phase slope defines a singularity, at which the group velocity is dramatically changed. Around the singularity, an abrupt transition from an infinite group advance to delay is demonstrated by measuring a Gaussian-shaped waveform propagating. Our experiment may broaden the scope of realizing extremely long group delays by taking advantage of singularities.

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Single-Photon Cooling in Microwave Magnetomechanics

Cited by 34 publications

References 40 publications

Critical quantum fluctuations and photon antibunching in optomechanical systems with large single-photon cooperativity

Critical quantum fluctuations and photon antibunching in optomechanical systems with large single-photon cooperativity

Mechanical quantum sensing in the search for dark matter

Optomechanical Anti-Lasing with Infinite Group Delay at a Phase Singularity

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