Robust stationary mechanical squeezing in a kicked quadratic optomechanical system

Asjad, Muhammad Imran; Agarwal, G. S.; Kim, M. S.; Tombesi, Paolo; Giuseppe, Giovanni Di; Vitali, David

doi:10.1103/physreva.89.023849

Cited by 120 publications

(101 citation statements)

References 55 publications

Supporting

Mentioning

100

Contrasting

Unclassified

Order By: Relevance

“…The condition (i) implies the cavity is rapidly excited by one pulse and damps to the vacuum state before the next pulse arrives [46]. And the condition (ii) means that the bandwidth of the pulses is much smaller than that of the cavity, which guarantees the pulse entering into the cavity spectrally.…”

Section: The Pulsed Quantum Optomechanicsmentioning

confidence: 99%

“…Compared with the CW-laser-driving case, the benefit of the pulsed scheme is that it does not need the existence of a stable steady-state for the optomechanical system. The pulsed interaction has also displayed its superiority in preparation and reconstruction of quantum state of the mechanical resonator [46,47], enhancing the optomechaical entanglement [48,49] and EPR steering [50], and cooling the mechanical mode [51,52].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimal quantum parameter estimation in a pulsed quantum optomechanical system

Zheng

Yao

2016

Phys. Rev. A

View full text Add to dashboard Cite

We propose that a pulsed quantum optomechanical system can be applied for the problem of quantum parameter estimation, which targets to yield higher precision of parameter estimation utilizing quantum resource than that using classical methods. Mainly concentrating on the quantum Fisher information with respect to the mechanical frequency, we find that the corresponding precision of parameter estimation on the mechanical frequency can be enhanced by applying applicable optical resonant pulsed driving on the cavity of the optomechanical system. Further investigation shows that the mechanical squeezing resulting from the optical pulsed driving is the quantum resource used in optimal quantum estimation on the frequency.

show abstract

Section: The Pulsed Quantum Optomechanicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal quantum parameter estimation in a pulsed quantum optomechanical system

Zheng

Yao

2016

Phys. Rev. A

View full text Add to dashboard Cite

show abstract

“…Several different experimental strategies for imposing squeezing on the mechanical oscillator are available [28][29][30][31]. However, rather than proceeding down this path, we qualitatively investigate the effect of introducing squeezing.…”

Section: B Squeezing-assisted Estimationmentioning

confidence: 99%

Quantum-limited estimation of continuous spontaneous localization

et al. 2017

View full text Add to dashboard Cite

We apply the formalism of quantum estimation theory to extract information about potential collapse mechanisms of the continuous spontaneous localisation (CSL) form. In order to estimate the strength with which the field responsible for the CSL mechanism couples to massive systems, we consider the optomechanical interaction between a mechanical resonator and a cavity field. Our estimation strategy passes through the probing of either the state of the oscillator or that of the electromagnetic field that drives its motion. In particular, we concentrate on all-optical measurements, such as homodyne and heterodyne measurements. We also compare the performances of such strategies with those of a spin-assisted optomechanical system, where the estimation of the CSL parameter is performed through time-gated spin-like measurements.Understanding the nature of the quantum-to-classical (QtC) transition is a long-sought problem that attracts an evergrowing attention [1][2][3][4][5][6]. While quantum mechanics has undergone exhaustive and extremely successful testings in the microscopic realm, the apparent absence of quantum manifestations at the macroscopic scale cries for a deeper understanding. In particular, this lack of evidence reinforces the need of assessing the causes for the emergence of classical mechanics from fundamental quantum evolution. The most widely accepted theory behind such process is quantum decoherence [6]: The environment surrounding any quantum system monitors its state continuously, practically collapsing the system's wavefunction and curtailing any quantum behaviour. Such process is conjectured to occur more quickly with the growing size of the system at hand. Under this regime, macroscopic superpositions would be possible in macroscopic systems perfectly isolated from their environment, a condition that is, for all practical purposes, not realisable.However, a set of theories, usually referred to as collapse models (CMs), suggests an alternative route to the explanation of the QtC transition by putting forward fundamental underlying mechanisms responsible for the collapse of the wavefunction [7]. The strength of this effect should increase with the size (mass) of the system, leaving microscopic (macroscopic) systems fully within the quantum (classical) realm. The key difference between CMs and standard quantum mechanics is that in the framework entailed by the former, perfectly isolated macroscopic objects would continue to act classically.Among the proposals put forward so far to test (or rule out) some of the currently formulated CMs [8][9][10], those based on the experimental platform of cavity optomechanics offer features of undemanding scalability of the mass of the system to be probed and high-sensitivity of measurement. Most remarkably, at variance with standardly pursued approaches [11], they bypass the need for the construction and quantum-limited management of large interferometers [12,13]. notwithstanding such promising features, the investigation of CMs still poses considerable experim...

show abstract

“…The squeezing is of fundamental importance in precision measurements [28][29][30] and thus quantum metrology drives the demand not only for higher levels of squeezing but also for the availability of squeezing in a variety of systems. There are several studies demonstrating squeezing in optomechanical systems [7,[31][32][33][34][35][36][37]. In the present work on optomechanical systems, we develop an analog of the standard method for producing squeezing in quantum optics.…”

Section: Introductionmentioning

confidence: 99%

Strong squeezing via phonon mediated spontaneous generation of photon pairs

Agarwal

2014

Frontiers in Optics 2014

Self Cite

View full text Add to dashboard Cite

We propose a scheme generating robust squeezed light by using double cavity optomechanical system driven by a blue detuned laser in one cavity and by a red detuned laser in the other. This double cavity system is shown to mimic effectively an interaction that is similar to the one for the downconverter, which is known to be a source of strong squeezing for the light fields. There are however distinctions as the phonons, which lead to such an interaction, can contribute to the quantum noise. We show that the squeezing of the output fields in the order of 10dB can be achieved even at the mirror temperature at the order of 10mK.

show abstract

Robust stationary mechanical squeezing in a kicked quadratic optomechanical system

Cited by 120 publications

References 55 publications

Optimal quantum parameter estimation in a pulsed quantum optomechanical system

Optimal quantum parameter estimation in a pulsed quantum optomechanical system

Quantum-limited estimation of continuous spontaneous localization

Strong squeezing via phonon mediated spontaneous generation of photon pairs

Contact Info

Product

Resources

About