Strong photon antibunching effect in a double-cavity optomechanical system with intracavity squeezed light

Amazioug, M.; Daoud, M.; Singh, S. K.; Asjad, M.

doi:10.1007/s11128-023-04052-8

Cited by 15 publications

(10 citation statements)

References 72 publications

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“…2 is the probability of finding i photons in the cavity. Combining C 0,m (t) , C 1,m (t) , C 2,m (t) , and C 3,m (t) , the photon number state probability amplitude P i ( i = 0, 1, 2, 3 ), g (2) (0) , and g (3) (0) can be calculated in the few-photon subspace.…”

Section: Results For Single-photon Blockade and Two-photon Blockadementioning

confidence: 99%

“…This indicates that the two-photon correlation is suppressed. It is important that, at the same time, the correlation between subsequent photons is smaller when the third-order function g (3) (0) is less than the second-order function g (2) (0) . Thus, the single-photon blockade of type 2 and type 3 can't be called good single-photon sources.…”

Section: Results For Single-photon Blockade and Two-photon Blockadementioning

confidence: 99%

“…The superbunching effect is that the probability of measuring two photons in the cavity at the same time is suppressed, while the probability of obtaining three photons in the cavity is enhanced. The criterion of type 2 indicates that the second-order function g (2) (0) is less than 1 and the third-order function g (3) (0) is greater than 1. This means that the two-photon correlation is suppressed and, simultaneously, the three-photon correlation is enhanced via the high-order transition processes.…”

Section: Results For Single-photon Blockade and Two-photon Blockadementioning

confidence: 99%

“…Thus, we have to prepare a source of photon streams. Photon blockade (PB) [1][2][3] is one of the ways in which this source can be accomplished. The single-photon blockade is that the subsequent photons will be prevented from entering the cavity when there is already a photon in the cavity due to the strong optical nonlinearity in the system [4][5][6] .…”

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confidence: 99%

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The manipulation of photon blockade via Newtonian gravity

Li,

Lu,

Zuo

2024

Sci Rep

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We theoretically investigate the model of a quadratically coupled optomechanical system with a Newtonian gravitational potential in the weak-driving regime, where the optical cavity is driven by an external laser. The steady state of the whole system is treated in the framework of a few-photon subspace. We find that the conventional single-photon blockade, nonstandard types of single-photon blockade, two-photon blockade, and photon-induced tunneling can be induced by gravity when the quadratic optomechanical coupling strength remains constant. Moreover, we find that gravitational potential energy can compensate for the lack of quadratic optomechanical coupling for observation photon blockade. In particular, the photon stream with super-Poissonian distribution can be converted into a sub-Poissonian, antibunching photon stream by changing the driving detuning when the gravitational potential energy is included. These results show that the gravity has potential for realizing the manipulation of photon blockade in a quadratically coupled optomechanical system.

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Section: Results For Single-photon Blockade and Two-photon Blockadementioning

confidence: 99%

Section: Results For Single-photon Blockade and Two-photon Blockadementioning

confidence: 99%

Section: Results For Single-photon Blockade and Two-photon Blockadementioning

confidence: 99%

mentioning

confidence: 99%

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The manipulation of photon blockade via Newtonian gravity

Li,

Lu,

Zuo

2024

Sci Rep

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“…Further, we consider noisy Gaussian environment, under which initial Gaussian state evolves, but still remains Gaussian. The evolution of the state r G ˆunder a common Gaussian dissipative channel at thermal equilibrium can be modelled by the quantum master equation, which is given in the interaction picture as [43][44][45][46][47]…”

Section: ˆˆˆˆˆˆ( )mentioning

confidence: 99%

A comprehensive perspective for single-mode Gaussian coherence

Singh,

ur Rahman,

Mazaheri

et al. 2024

Phys. Scr.

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In this work, we theoretically investigate single-mode Gaussian quantum coherence from a comprehensive perspective. Based on analytical expressions of the first and second moments of single-mode Gaussian states undergoing various Gaussian noisy channels, we use quantum mater equation and the method of the relative entropy to quantify the quantum coherence of any single-mode Gaussian state. We demonstrate that the displaced thermal state achieves maximum quantum coherence when using only the displaced vacuum state, which is a pure coherent state. However, for various lossy noise channels, quantum coherence shows a significant decrease. In the context of a squeezed thermal state, when controlling the squeezing parameter for a given environmental temperature, quantum coherence has been witnessed to increase. The ultimate upper bound of quantum coherence is then attained with the squeezed vacuum state. In particular, we determined the most generalized scenario of the displaced squeezed thermal state. The maximum value of quantum coherence is obtained when displacement and squeeze parameters both attain maximum value. Our study might be important in the future for the characterisation as well as the estimation of various nonclassical quantum correlations in single-mode Gaussian states.

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Photothermally and optomechanically induced transparency in a hybrid optomechanical system

Hu,

Gao,

Guan

et al. 2024

Int J of Quantum Chemistry

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We theoretically investigated the photothermally and optomechanically induced transparency (PTIT and OMIT) in an optomechanical system filled with quantum dots (QDs). In our proposed system, the right mechanical resonator couples with the optical cavity via radiation pressure, and the left mechanical resonator couples with the optical cavity through the photothermal effects. The system is driven by a strong pump field and a weak probe field. It is shown that double transparency windows can be observed due to PTIT and OMIT. When considering the Jaynes‐Cummings coupling between the QDs and the optical cavity, three transparency windows are observed. We also show that the PTIT can be adjusted by the OMIT and the QDs in the optical cavity. What is more, the coupling strength and the frequency detuning can be used effectively to change the system absorption and dispersion in the PITT transparency window. This indicates that the group delay of the probe light can also be manipulated by the system parameters. The obtained results may be applied in the optical communication such as optical buffer, and so forth.

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Strong photon antibunching effect in a double-cavity optomechanical system with intracavity squeezed light

Cited by 15 publications

References 72 publications

The manipulation of photon blockade via Newtonian gravity

The manipulation of photon blockade via Newtonian gravity

A comprehensive perspective for single-mode Gaussian coherence

Photothermally and optomechanically induced transparency in a hybrid optomechanical system

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