Quantum enhanced probing of multilayered samples

Y., Li-Gomez, Mayte; Yepiz-Graciano, Pablo; Hrushevskyi, Taras; Calderón-Losada, Omar; Sağlamyürek, Erhan; Lopez-Mago, Dorilian; Salari, Vahid; Ngo, Trong Vi; U’Ren, Alfred B.; Barzanjeh, Shabir

doi:10.1103/physrevresearch.5.023170

Cited by 3 publications

(1 citation statement)

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“…It is worth mentioning that squeezed light quantum states are widely used in various applications related to quantum sensing, quantum communication, and quantum computation. For instance, we can mention the application of squeezed light in laser interferometers [43], particularly in enhancing the sensitivity of interferometers below the quantum shot-noise limit [44] and quantum sensing [45,46]. Also, in quantum computing, the squeezed light is used in the generation of twodimensional and time-domain-multiplexed two-dimensional cluster state [47,48].…”

Section: Discussionmentioning

confidence: 99%

The Mth nonlinear coherent states

Heydari,

Jafari,

Abbasi

2024

Phys. Scr.

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Since radiation field states are very important in the interaction with the various atomic structures, in this article we introduce a new type of quantum states, which we call "Mth nonlinear coherent states". We define these states based on acting of the number operator M times ˆ nM on a nonlinear coherent state. By analyzing the photon distribution function and its overlap with the nonlinear coherent states, it becomes clear that these states are very similar to the corresponding nonlinear coherent states. We also investigate the nonclassical features of such states for different values of M, and it is determined that the occurrence of sub-Poissonian photon statistics, normal squeezing, and amplitude squared squeezing are considerable nonclassical properties of the Mth nonlinear coherent states. Also, examining the Husimi function shows a local behavior for the introduced states. Furthermore, by calculating the Wigner function, we find out that in some points of the phase space, the value of this function is negative which could be considered as a nonclassical feature for these states.

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