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We report the first coexistence experiment of 1550 nm single-mode squeezed states of light with a 1310 nm classical telecom channel over a 10 km fiber channel while measuring squeezing using a locally generated local oscillator. This is…

Quantum Physics · Physics 2023-05-05 Adnan A. E. Hajomer , Huy Q. Nguyen , Melis Pahalı , Ulrik L. Andersen , Tobias Gehring

Multimode squeezed states of light have been proposed as a resource for achieving quantum advantage in computing and sensing. Recent experiments that demonstrate multimode Gaussian states to this end have most commonly opted for spatial or…

Squeezed light has revolutionized quantum metrology by enhancing interferometry for sensitive applications such as the detection of gravitational waves. Squeezed light has also played a pivotal role in quantum information science with…

One of the noise sources that currently limits gravitational wave (GW) detectors comes from the quantum nature of the light causing uncertain amplitude and phase. Phase uncertainty limits the precision of an interferometric measurement.…

Quantum Physics · Physics 2020-08-26 Nancy Aggarwal

We show that it is possible to construct spectrally lower bound limited functions which can oscillate locally at an arbitrarily low frequency. Such sub-oscillatory functions are complementary to super-oscillatory functions which are…

Optics · Physics 2017-10-31 Yaniv Eliezer , Alon Bahabad

Quantum states of light can improve imaging whenever the image quality and resolution are limited by the quantum noise of the illumination. In the case of a bright illumination, quantum enhancement is obtained for a light field composed of…

Quantum Physics · Physics 2015-07-13 C. S. Embrey , M. T. Turnbull , P. G. Petrov , V. Boyer

We investigate continuous variable entangling resources on the base of two-mode squeezing for all operational regimes of a nondegenerate optical parametric oscillator with allowance for quantum noise of arbitrary level. The results for the…

Quantum Physics · Physics 2007-05-23 G. Yu. Kryuchkyan , L. A. Manukyan

We use the spatial degree of freedom of light modes to construct optical analogues of generalized quantum coherent states for Hermite- and Laguerre-Gauss modes. Our optical analogues preserve the statistical properties of their quantum…

The strong-field induced generation of nonclassical states of light is not only a subject of fundamental research but also has potential usage in quantum information science and technology. The emerging field of strong-field quantum optics…

Quantum Physics · Physics 2025-03-21 Christian Saugbjerg Lange , Thomas Hansen , Lars Bojer Madsen

Squeezed states of light have received renewed attention due to their applicability to quantum-enhanced sensing. To take full advantage of their reduced noise properties to enhance atomic-based sensors, it is necessary to generate…

Quantum Physics · Physics 2022-07-21 Saesun Kim , Alberto M. Marino

Squeezed light has evolved into a powerful tool for quantum technology, ranging from quantum enhanced sensing and quantum state engineering based on partial post-selection techniques. The pulsed generation of squeezed light is of particular…

Quantum Physics · Physics 2021-03-03 Chaohan Cui , Christos N. Gagatsos , Saikat Guha , Linran Fan

Optical parametric downconversion has proven to be a valuable source of nonclassical light. The process is inherently able to produce twin beam correlations along with individual intensity squeezing of either parametric beam, when pumped…

Quantum Physics · Physics 2013-05-29 J. U. Fürst , D. V. Strekalov , D. Elser , A. Aiello , U. L. Andersen , Ch. Marquardt , G. Leuchs

To achieve high degree of quantum noise squeezing, an optical cavity is often employed to enhance the interaction time between light and matter. Here, we propose to utilize the effect of coherent population trapping (CPT) to directly…

Quantum Physics · Physics 2017-11-15 You-Lin Chuang , Ray-Kuang Lee , Ite A. Yu

Conditional Measurement scheme which employs linear optical elements and photon detection is the fertile ground for nonclassical state generation. We consider a simple setup that requires a coherent state and a number state as inputs of the…

Quantum Physics · Physics 2024-12-30 Devibala Esakkimuthu , Basherrudin Mahmud Ahmed A

Capabilities of quantum optical SFG-gate seeded by squeezed light are investigated in the frame of frequency Schmidt modes. Methods to manage and manipulate extensively the properties and mode content of squeezed light are developed.…

Quantum Physics · Physics 2020-12-30 Vladislav Sukharnikov , Polina Sharapova , Olga Tikhonova

Quantum fluctuations of the electromagnetic vacuum impose an observable quantum limit to the lowest temperatures that can be reached with conventional laser cooling techniques. As laser cooling experiments continue to bring massive…

Quantum Physics · Physics 2017-02-01 Jeremy B. Clark , Florent Lecocq , Raymond W. Simmonds , Jose Aumentado , John D. Teufel

Squeezing is a resource that enables precision enhancements in quantum metrology and can be used as a basis for the generation of entanglement by linear optics. While strong squeezing is challenging to generate in optical fields, here we…

Quantum Physics · Physics 2021-07-07 F. Cosco , J. S. Pedernales , M. B. Plenio

In this paper, we study the quantum properties of the three-mode squeezed operator. This operator is constructed from the optical parametric oscillator based on the three concurrent $\chi^{(2)}$ nonlinearities. We give a complete treatment…

Quantum Physics · Physics 2015-05-14 Faisal A. A. El-Orany , Azeddine Messikh , Gharib S. Mahmoud , Wahiddin M. R. B

We demonstrate a squeezing experiment exploiting the association of integrated optics and telecom technology as key features for compact, stable, and practical continuous variable quantum optics. In our setup, squeezed light is generated by…

We investigate the quantum statistical properties of the light emitted by a quantum well interacting with squeezed light from a degenerate subthreshold optical parametric oscillator. We obtain analytical solutions for the pertinent quantum…

Quantum Physics · Physics 2011-09-21 Eyob A. Sete , H. Eleuch