Optomechanics with two-phonon driving

Levitan, B. A.; Metelmann, A.; Clerk, Aashish A.

doi:10.1088/1367-2630/18/9/093014

Cited by 60 publications

(97 citation statements)

References 46 publications

(100 reference statements)

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“…Similar noise suppression in reciprocal optomechanicalbased amplifiers was found in Refs. [23,26] and was also reported in recent experiments [27,28].…”

Section: A Unresolved-sideband (Usb) Amplificationsupporting

confidence: 77%

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Minimal Models for Nonreciprocal Amplification Using Biharmonic Drives

Kamal

Metelmann

2017

Phys. Rev. Applied

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We present a generic system of three bosonic modes coupled parametrically with a time-varying coupling modulated by a combination of two pump harmonics, and we show how this system provides the minimal platform for realizing nonreciprocal couplings that can lead to gainless photon circulation, and phase-preserving or phase-sensitive directional amplification. Explicit frequency-dependent calculations within this minimal paradigm highlight the separation of amplification and directionality bandwidths, a feature generic to such schemes. We also study the influence of counterrotating interactions that can adversely affect directionality and the associated bandwidth; we find that these effects can be mitigated by suitably designing the properties of the auxiliary mode that plays the role of an engineered reservoir to the amplification mode space.

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“…Similar noise suppression in reciprocal optomechanicalbased amplifiers was found in Refs. [23,26] and was also reported in recent experiments [27,28].…”

Section: A Unresolved-sideband (Usb) Amplificationsupporting

confidence: 77%

“…Note that, while a directionality parameter of unity can be achieved at resonance (ω ¼ 0), the maximum attainable value of d decreases quadratically with detuning, as per Eq. (26). Also, the effect of non-RWA corrections is more pronounced at finite detunings.…”

Section: A Amplification Bandwidth Versus Directionality Bandwidthmentioning

confidence: 92%

Minimal Models for Nonreciprocal Amplification Using Biharmonic Drives

Kamal

Metelmann

2017

Phys. Rev. Applied

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“…Our work is also quite different from the work in Ref. [46], which utilized the coherent two-phonon driving and red mechanical sideband driving applied to the single-mode optomechanical cavity. Thus optical squeezing and amplification could be generated in the linearized regime, but the nonlinear quantum regime was not involved.…”

Section: Introductionmentioning

confidence: 77%

“…It is quite different from the previous studies without employing the modulated effects of optomechanical interaction [45,46]. Specifically, we consider a single-mode optomechanical system and focus on the regime where the mechanical spring constant and optomechanical interaction are modulated periodically.…”

Section: Introductionmentioning

confidence: 94%

“…Together with the sinusoidal modulation of the optomechanical coupling, the resonant nonlinear photon-phonon interaction could be enhanced to the single-photon strong-coupling regime by mechanical parametric amplification. Note that the mechanical parametric amplification could also be used to boost mechanical signals in micro-and nanoelectromechanical systems [42,43], to squeeze the mechanical oscillator beyond the 3dB limit [44], to enhance the photon-photon interaction in a two mode OMS [45], to yield optical amplification and squeezing [46], and to achieve optical nonreciprocity [47,48].…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear effects in modulated quantum optomechanics

et al. 2017

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The nonlinear quantum regime is crucial for implementing interesting quantum effects, which have wide applications in modern quantum science. Here we propose an effective method to reach the nonlinear quantum regime in a modulated optomechanical system (OMS), which is originally in the weak-coupling regime. The mechanical spring constant and optomechanical interaction are modulated periodically. This leads to the result that the resonant optomechanical interaction can be effectively enhanced into the single-photon strong-coupling regime by the modulation-induced mechanical parametric amplification. Moreover, the amplified phonon noise can be suppressed completely by introducing a squeezed vacuum reservoir, which ultimately leads to the realization of photon blockade in a weakly coupled OMS. The reached nonlinear quantum regime also allows us to engineer the nonclassical states (e.g., Schrödinger cat states) of cavity field, which are robust against the phonon noise. This work offers an alternative approach to enhance the quantum nonlinearity of an OMS, which should expand the applications of cavity optomechanics in the quantum realm.

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Normal‐Mode Splitting in a Weakly Coupled Electromechanical System with a Mechanical Modulation

Zhang¹,

Wang²,

Yu³

2019

Annalen der Physik

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Normal‐mode splitting (NMS) is one of the most significant manifestations of strongly coupled systems. Here, NMS is shown to occur in a weakly coupled electromechanical system. In this system, an exponentially enhanced electromechanical coupling is obtained by periodically modulating the electromechanical interaction and the mechanical spring constant. Under the mechanical modulation, an obvious NMS can occur in the fluctuation spectra of the mechanical oscillator's displacement and the output field. Besides, the Stokes and anti‐Stokes fields can also display an obvious NMS. Interestingly, the Stokes field can be changed from full absorption to significant amplification, and the anti‐Stokes field can also be enhanced significantly. Another novel feature of the results is that the intensity between the two peaks in NMS is almost zero, which means that the two peaks can be well resolved in experiments. This work presents an effective method for the generation of a well‐resolved NMS in a weakly coupled system.

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Optomechanics with two-phonon driving

Cited by 60 publications

References 46 publications

Minimal Models for Nonreciprocal Amplification Using Biharmonic Drives

Minimal Models for Nonreciprocal Amplification Using Biharmonic Drives

Nonlinear effects in modulated quantum optomechanics

Normal‐Mode Splitting in a Weakly Coupled Electromechanical System with a Mechanical Modulation

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